BMW Suspension Parts for BMW Z4 M Roadster S54 (2003-2008)

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Your BMW's handling is determined by the capabilities and age of your suspension components. Our selected aftermarket performance suspension like coilovers, lowering springs, cup kits, and dampers can improve the handling of your BMW dramatically. With those upgrades comes the needs for proper adjustment; our recommended supporting modifications comes stiffer sway bars, bushings, and adjustable camber/caster plates, to name a few found on this page. Completely build your suspension for the most competitive BMW driving experience, achieve your perfect look, or simply replace your worn suspension with our recommended parts.

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Revshift Rear Shock Mount Kit - 80A - BMW E30 E36 E46 Z3
For shocks with a standard 10mm pin diameter
Revshift - Corporate Logo
T#:1105924
Part#: RSM-E6-10MM
Ships on Oct 16, 2026
$ 99.99 USD
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$ 99.99 USD
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Revshift rear shock mounts are CNC machined from 6061 billet aluminum and hard anodized black for protection. They are fitted with our highest quality 80A polyurethane bushings and chromoly sleeves. The class 10.9 hardware is zinc plated for corrosion resistance. These rear shock mounts can be rebuilt with one of our refresh kits sold separately. Fitment: BMW E30, E36, E46, Z3, and Z4. All OEM and aftermarket rear shocks with 10mm threads.
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Powerflex - Corporate Logo
T#:34549555
Part#: PFR5-4616H
In Stock
$ 119.99 USD
Free Shipping on orders $49 and up

The Powerflex Rear Lower Control Arm Inner Bushing for BMW E36 and E46 3 Series, Z4, and X3 is designed to provide a significant upgrade over the factory rubber bushings. By using high-performance polyurethane, these bushings enhance the stability, responsiveness, and overall performance of the rear suspension system.

Key Benefits:

  1. Enhanced Handling Performance: The stiffer polyurethane material reduces flex and improves the rigidity of the rear control arm, resulting in better handling and stability during cornering and aggressive driving maneuvers.
  2. Durability and Longevity: Unlike standard rubber bushings, these polyurethane bushings are engineered to withstand wear from road debris, oil, and temperature fluctuations, ensuring they maintain performance over time.
  3. Improved Steering Feedback: With reduced movement and play in the rear suspension, these bushings provide a more direct connection to the road, enhancing steering responsiveness and driver control.
  4. Precision Fitment: Specifically designed for BMW E36 and E46 3 Series, Z4, and X3 models, these bushings ensure an accurate fit and easy installation, making them a straightforward upgrade for enthusiasts.

These bushings are ideal for BMW owners looking to improve the handling dynamics and durability of their vehicle’s rear suspension, suitable for both daily driving and performance-oriented applications.

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Powerflex - Corporate Logo
T#:34114217
Part#: PFR5-3608H
In Stock
$ 101.99 USD
Free Shipping on orders $49 and up

The BMW E46 / E36 / Z4 / X3 Rear Trailing Arm Front Bushing by Powerflex is a precision-engineered suspension upgrade designed to improve the handling and durability of several popular BMW models. This bushing replaces the factory rubber bushing located at the front of the rear trailing arm with a high-performance polyurethane version.

Product Features:

  1. Polyurethane Construction: Unlike standard rubber bushings, Powerflex bushings are made from durable polyurethane, a material known for its superior resistance to wear, heat, and degradation from oils and contaminants. This leads to a longer lifespan and more consistent performance over time.

  2. Stiffness for Enhanced Control: The polyurethane bushings provide increased stiffness, reducing unwanted flex and movement in the rear trailing arms. This helps to maintain better control of the rear wheel alignment, resulting in more stable and predictable handling, especially during cornering, acceleration, and braking.

  3. Reduced Deflection: By reducing the deflection of the rear trailing arms, these bushings help to improve traction and rear suspension geometry. This makes the car feel more planted and responsive, reducing wheel hop and improving grip under load.

  4. Direct Replacement: The Powerflex bushings are designed as a direct replacement for the factory-installed rubber bushings, meaning they will fit perfectly into the existing suspension setup without requiring modifications. This makes installation straightforward while significantly enhancing the suspension’s performance.

  5. Longevity & Resistance: Polyurethane bushings are highly resistant to common automotive contaminants such as road debris, oil, water, and heat. This makes them a more reliable choice for drivers looking for a long-term solution to suspension wear and tear.

Compatible Models:

  • BMW E46 (3 Series, 1999-2006)
  • BMW E36 (3 Series, 1991-1999)
  • BMW Z4 (E85/E86, 2003-2008)
  • BMW X3 (E83, 2003-2010)

Advantages:

  • Improved Rear-End Stability: Provides more precise alignment and control of the rear suspension, resulting in sharper handling.
  • Durable & Long-Lasting: Outperforms rubber bushings in terms of longevity and wear resistance.
  • Enhanced Ride Quality: Reduces unwanted suspension movement, improving driving dynamics and cornering performance.
  • Easy Fitment: A direct replacement for stock bushings, with no special modifications required.

For drivers seeking a more connected and performance-focused feel from their BMW, the Powerflex Rear Trailing Arm Front Bushing is a significant upgrade over stock rubber bushings, delivering improved handling, reduced wear, and enhanced driving enjoyment.

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H&R - Corporate Logo
T#:1879
Part#: 71414
Ships in 3 Business Days
$ 459.00 USD
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$ 459.00 USD
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H&R adjustable 25mm rear sway bar / swaybar for all 2001-2006 E46 M3 coupe and convertible. Includes bushings. Made in Germany.

  • Reduces body roll
  • Highest tensile strength available

H&R Sport Sway Bars are designed for drivers who desire improved handling without lowering or affecting ride quality. H&R Sport Sway Bars increase your suspension's roll stiffness or its resistance to roll in turns while maintaining ride comfort and dramatically increasing cornering control, lateral stability, and grip. A unique feature of H&R Sport Sway Bars are the smooth, machined-like forged ends that, for specific vehicles, allow for adjustability in stiffness giving you an unmatched level of precision and performance.


This item fits the following BMWs:
2001-2006 E46 BMW M3
2006-2008 Z4 BMW M Coupe/Roadster

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Air Lift - Corporate Logo
T#:370667
Part#: 24636
Ships in 3 Business Days
$ 51.99 USD
Free Shipping on orders $49 and up
Upgrade your BMW's ride control with our 5/64 valve, offering the performance of an electric valve at an affordable price. Ideal for easy height adjustment, this valve ensures efficient ride control with 1/8" FNPT threads, providing versatility and reliability for your vehicle's suspension system.
  • Affordable alternative to electric valves
  • Easy height adjustment for improved ride control
  • Versatile 1/8" FNPT threads
  • Reliable performance for BMW suspension systems
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ECS - Corporate Logo
T#:379065
Part#: 002542ECS01KT2
In Stock
Sale - Save 3% $ 401.99

This product was last offered at the strikethrough price on
06-13-2026

$ 389.93 USD
Free Shipping
Sale - Save 3%
$ 401.99

This product was last offered at the strikethrough price on
06-13-2026

$ 389.93 USD
Free Shipping
BMW has long suffered issues with rear shock mount blowout on M3 and non-M 3 Series models dating back to 1984 with the E30 chassis. Little changed over the following two decades, and E36, E46, and Z3/Z4 models are also prone to this style of failure. After striking a pothole or another seemingly innocuous obstacle, a clunking from the rear emerges and handling becomes sloppy. Your shocks have blown through their mounts. Enter the Ultimate Performance Rear Shock Mount Kit from ECS Tuning. Not only does their industry-first design alleviate the blowout problem once and for all, but allows rear dampers to fully articulate, for the best possible damper performance and longevity. They accomplish this with no noticeable increase in noise, vibration, or harshness (NVH) thanks to their unique rebuildable polyurethane isolation. The poly bushings not only keep NVH to a minimum, but they also reduce impact loading on the bearing, improving bearing life over full solid mounted monoball designs. To further improve bearing life and longevity, this design incorporates a lower dust seal to keep road debris, grit, and other contaminants out of the bearing. These are one of the best rear shock mounts available, and the last you will ever need. Features: Maintenance-free, PTFE lined, stainless steel monoball spherical bearing for full shaft articulation Lower dust seal for improved bearing life 80A polyurethane isolation bushings for NVH control and improved bearing life Accommodates 10mm* Fully constrained shaft mount makes blowouts impossible Hard anodized 6061-T6 construction Class 10 black zinc plated studs New OEM lock nuts included Fully rebuildable design *For use with factory-style 10mm damper shafts. If you have factory-style mounts presently, you have 10mm damper shafts. *During installation a 17ft-lb torque spec is required to avoid damage to the mounts.
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Powerflex - Corporate Logo
T#:34549556
Part#: PFR5-4617H
In Stock
$ 80.99 USD
Free Shipping on orders $49 and up

The Powerflex Rear Upper Arm Inner Bushing for BMW E36 and E46 3 Series, Z4, and X3 is designed to significantly enhance the performance and reliability of the rear suspension. By replacing the factory rubber bushings with high-quality polyurethane, this upgrade offers a range of benefits for driving enthusiasts.

Key Advantages:

  1. Improved Handling and Control: The firmer polyurethane material reduces flex in the upper control arm, resulting in enhanced stability and cornering performance. This leads to a more predictable and confident driving experience.
  2. Long-Lasting Durability: Engineered to resist wear from environmental factors such as heat, oil, and road debris, these bushings offer superior longevity compared to traditional rubber options, maintaining performance over time.
  3. Enhanced Steering Feedback: The increased rigidity of the bushing allows for better communication between the vehicle and driver, improving steering response and providing a more connected feel on the road.
  4. Direct Fit for Easy Installation: Specifically designed for the E36 and E46 3 Series, Z4, and X3 models, these bushings ensure an accurate fit, making installation straightforward without requiring modifications.

Ideal for BMW owners looking to upgrade their suspension system, these bushings provide a perfect blend of performance, durability, and responsiveness, making them suitable for both daily driving and high-performance applications.

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Condor Speed Shop - Corporate Logo
T#:40917450
Part#: RTAMB-E36-E46
In Stock at Vendor
$ 265.00 USD
Free Shipping on orders $49 and up
Condor Speed Shop collaborated with Syncro Design Works to create these new Monoball Rear Trailing Arm Bushings designed for the track! While also at home on the street, these performance bushings are designed to handle the stresses of the track, offering a full range of articulation for optimal suspension geometry and a sealed design for maintenance-free operation and a long life. SDW's' own 410hp shop track/streetcar still has the original prototype bearing installed in 2009, with no measurable toe deflection. Condor RTAMBs are precision CNC machined and hard coat anodized to protect against corrosion, moisture, and salt spray. They come fully assembled and ready to install. NOTE: Professional installation recommended. These bushings must be pressed into the factory Rear Trailing Arms.
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Powerflex Performance Street Rear Shock Mount - E30 E36 E46 Z3 Z4 ...
For vehicles with a 10mm Rear Shock Shaft Diameter
Powerflex - Corporate Logo
T#:378995
Part#: PFR5-5630-10X2
Ships in 1 Business Day
$ 137.99 USD
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$ 137.99 USD
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Rear shock mounts are tasked with securing shocks while absorbing noise, vibration and harshness that would otherwise be associated with a solid mount. Factory rubber bushings are a compromise between a cushy ride and responsive handling.

Powerflex polyurethane rear shock mounts are firmer than OEM bushings, resulting in better handling, a more responsive rear-end, and more efficient suspension articulation - all with minimal sacrifice to ride quality.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers.

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Powerflex Black Series - Corporate Logo
T#:362720
Part#: PFR5-4611BX2
Ships in 1 Business Day
$ 158.99 USD
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$ 158.99 USD
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Tasked with keeping the vehicles rear end firmly mounted while absorbing noise, vibration, and harshness (NVH) factory rubber subframe bushings were engineered to provide a balance of control while keeping the ride quality soft and supple. As a factory bushings age, they become brittle and begin to harden. When this happens the bushing will actually shrink and allow excess play, or movement in the subframe. This is typically felt by a sudden jerk or "thunking" noise under acceleration and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushings with full polyurethane this play is eliminated since the subframe is being held in place by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering and acceleration inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver. 

Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure with Powerflex performance polyurethane control arm bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

This part fits the following BMWs:
2001 - 2006 E46

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ECS Adjustable Front Sway Bar End Links (175-235mm)
Please measure before purchasing. For lowered or custom applications. Will not fit fact...
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:55497402
Part#: 059085LA01
In Stock
New Item
$ 189.99 USD
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$ 189.99 USD
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Upgrade your BMW's suspension with ECS Tuning Adjustable Sway Bar End Links, designed to provide up to 60mm (2.36") of adjustability. These end links allow you to eliminate sway bar preload or fine-tune it for specific racing needs and corner balancing. When installed, they improve drivetrain clearance and enhance sway bar responsiveness by reducing deflection, ensuring superior handling. Perfect for lowered vehicles using springs, coilovers, or air-ride suspension systems, these adjustable sway bar end links allow you to remove unwanted preload caused by changes in the center-to-center distance between sway bar mounting points. By adjusting the end links to a neutral position, you eliminate sway bar preload, enhancing suspension performance in various driving conditions.

The main body of the ECS Sway Bar End Links is crafted from strong, lightweight 6061-T6 billet aluminum and anodized red for superior corrosion resistance. Featuring left- and right-hand threaded center sections and machined hex wrench fittings, these end links allow for quick and easy on-the-car adjustments. Zinc-plated hardware ensures secure and lasting adjustments, while the heavy-duty ball joint ends come with weather-resistant rubber boots and stainless steel wire retainers, providing superior protection against salt, rain, and ozone for extended durability. Each kit also includes zinc-plated Nyloc nuts and hardened steel washers for secure installation and improved contact surface on the sway bar.

These end links are designed, engineered, and rigorously tested by ECS Tuning to ensure the highest quality. Whether you have a lowered or stock suspension, these adjustable sway bar end links are the perfect upgrade, offering a high-quality, heavy-duty replacement that fits your specific needs.

Features:

Range of Adjustment: 175mm (6.89") to 235mm (9.25") 6061-T6 Billet Aluminum Construction: Red anodized for superior corrosion resistance Zinc-Plated Hardware: Provides durability and superior corrosion protection Right and Left-Hand Threaded Center Sections: Quick and simple on-the-car adjustments Heavy-Duty Ball Joints (M10x1.5): Weather-resistant rubber boots and stainless steel wire retainers for long-lasting durability NOTE: If you've modified your vehicle's suspension with aftermarket struts or coilovers, the mounting location for the sway bar end link may have moved. To confirm fitment with our adjustable end links, please measure the distance between the sway bar and the mounting location on the strut body with the vehicle at ride height and confirm that it is within the 175 - 235mm range of adjustment.

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Revshift - Corporate Logo
T#:1105904
Part#: PSB-E46M
Ships on Dec 24, 2026
$ 189.99 USD
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$ 189.99 USD
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Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Powerflex - Corporate Logo
T#:383997
Part#: PFR5-4613X2
Ships in 1 Business Day
$ 85.99 USD
Free Shipping
$ 85.99 USD
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Tasked with keeping the vehicles rear end firmly mounted while absorbing noise, vibration, and harshness (NVH) factory rubber subframe bushings were engineered to provide a balance of control while keeping the ride quality soft and supple. As a factory bushings age, they become brittle and begin to harden. When this happens the bushing will actually shrink and allow excess play, or movement in the subframe. This is typically felt by a sudden jerk or "thunking" noise under acceleration and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushings with full polyurethane this play is eliminated since the subframe is being held in place by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering and acceleration inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver. 

Powerflex street bushings are ideal for street driven vehicles and those that see occasional autocross or track time. Need bushings for a dedicated track car? Engineered to perform, Powerflex performance polyurethane bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure with Powerflex performance polyurethane control arm bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

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Powerflex - Corporate Logo
T#:383990
Part#: PFF5-5601GX2
Ships in 1 Business Day
$ 232.99 USD
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$ 232.99 USD
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Control arm bushings play a key role in connecting the wheels to the chassis of the vehicle. Tasked with keeping suspension geometry in check while absorbing noise, vibration, and harshness (NVH) factory rubber bushings were engineered to provide a balance of comfort and control. As a factory bushing ages, it becomes brittle and begins to harden. When this happens the bushing will actually shrink and allow excess play in the suspension joint. This is typically felt by a sudden jerk forward after the car comes to a stop and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushing with a full polyurethane unit or using a bushing insert, this play is eliminated since the suspension joint is being supported by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver.

Powerflex street bushings are ideal for street driven vehicles and those that see occasional autocross or track time. Need bushings for a dedicated track car? Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure with Powerflex performance polyurethane control arm bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

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Revshift Rear Shock Mount Kit - 80A - BMW E30 E36 E46 Z3
For shocks with a larger 12mm pin diameter
Revshift - Corporate Logo
T#:1105925
Part#: RSM-E6-12MM
Ships in 2 Business Days
$ 99.99 USD
Free Shipping
$ 99.99 USD
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Revshift rear shock mounts are CNC machined from 6061 billet aluminum and hard anodized black for protection. They are fitted with our highest quality 80A polyurethane bushings and chromoly sleeves. The class 10.9 hardware is zinc plated for corrosion resistance. These rear shock mounts can be rebuilt with one of our refresh kits sold separately. Fitment: BMW E30, E36, E46, Z3, and Z4. All OEM and aftermarket rear shocks with 12mm threads.
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Powerflex - Corporate Logo
T#:34214781
Part#: PFR5-5630-10H
Ships in 1 Business Day
$ 137.99 USD
Free Shipping on orders $49 and up

The Powerflex BMW E30 / E36 / E46 / Z3 / Z4 Rear Shock Mount – 10 mm is an advanced suspension upgrade designed to improve the rear shock performance in a wide range of BMW models. By replacing the factory rubber mounts with polyurethane, this mount ensures a more durable and performance-oriented suspension setup.

Key Features:

  • Multi-Model Compatibility: Specifically designed for BMW E30, E36, E46, Z3, and Z4 models, this 10 mm rear shock mount is a perfect fit for vehicles with rear shocks that feature a 10 mm rod diameter. It offers seamless integration and performance enhancement across these BMW platforms.
  • Polyurethane Construction for Enhanced Durability: Unlike OEM rubber mounts, which are prone to wear and degradation over time, these mounts are crafted from tough polyurethane. This material provides greater resistance to wear, oil, road contaminants, and high temperatures, ensuring a longer-lasting component that maintains its structural integrity.
  • Superior Handling and Control: The stiffer polyurethane reduces the flex and movement that can occur with rubber mounts, providing more direct shock performance. This results in better handling, improved suspension response, and increased stability, particularly during aggressive driving or when cornering.
  • Comfortable Ride Quality: Despite its firmer characteristics, the polyurethane shock mount is designed to absorb road vibrations and noise, ensuring that while your handling improves, you don’t sacrifice the comfort BMWs are known for. It balances performance and comfort, making it suitable for both daily driving and spirited driving.
  • Quick and Easy Installation: Designed as a direct replacement for the stock rear shock mounts, this bushing allows for a straightforward installation process. No additional modifications are required, making it a simple yet effective upgrade for your BMW’s suspension.

This Rear Shock Mount – 10 mm is an ideal upgrade for BMW E30, E36, E46, Z3, and Z4 owners who want to improve their vehicle’s handling performance and suspension durability. The combination of enhanced strength and control with ride comfort makes it an excellent choice for both everyday use and more performance-driven situations, offering a long-lasting solution to rear shock mounting issues.

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Bilstein - Corporate Logo
T#:1584
Part#: MZ4HDSET
In Stock
$ 1,155.99

This product was last offered at the strikethrough price on
06-05-2026

$ 916.00 USD
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$ 916.00 USD
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Bilstein strut/shock package for stock springs. Set includes 2 front Bilstein B6 Performance shocks and 2 rear Bilstein B6 Performance shocks. Includes top nuts and rear lower shock washers. The stock rear dust boots are re-used. The Bilstein B6 Performance Shock is designed for use with stock springs. These shocks provide improved handling and stability without sacrificing ride comfort.


This Bilstein B6 Performance shock package fits the following BMWs:
2006-2009 MZ4 M Roadster
2006-2009 MZ4 M Coupe
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Turner Motorsport - Corporate Logo
T#:338359
Part#: 31351134582A
Back Ordered
Starting at $ 158.39 USD
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Starting at $ 158.39 USD
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This single swaybar link is adjustable to eliminate preload on the front sway bar in E30 M3, E36 M3, E46, and Z4 models. Preload is tension on the bar when the car is at rest on the ground. Ideally, the bar should be neutral with zero tension on both ends (no twist in the bar at rest). Preload comes from inconsistent side-side ride height (such as with coil overs), a bent swaybar, a bent strut housing, or a chassis with bent or skewed frame rails. The handling is affected with a preloaded sway bar so removing that tension will give you more consistent handling and response. Preloading can also lead to premature failure of the link ball joints.

To remove preload you only need an adjustable link on one side of the car. Install your stock swaybar link on one side, lower the car to the ground, adjust the Turner link to meet the swaybar hole on the other side, and tighten everything up. Never install both sway bar links with the tires off the ground. Our link is made from a stock HD swaybar link with an easily adjusted hex rod in the middle.

One link or two? Technically, the remove preload only one link is required. However, there may be cases where having two links is better. Having an adjustable link on both sides of the car will allow you to better position the front sway bar for clearance or when a different racing style coil over is used.

This item fits the following BMWs:
1988-1991 E30 BMW M3
1995-1999 E36 BMW M3
1999-2006 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci M3
1982-1988 E28 BMW 524td 528e 533i 535i 535is M5
1989-1995 E34 BMW 525i 530i 535i 540i M5
1982-1989 E24 BMW 633csi 635csi M6
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe
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ECS - Corporate Logo
T#:389255
Part#: 002542ECS01
In Stock
Sale - Save 3% $ 401.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 389.93 USD
Free Shipping
Sale - Save 3%
$ 401.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 389.93 USD
Free Shipping

Want a race-spec rear shock mount but with the comfort of a factory bushing? This ECS rear shock mount combines the precision and articulation of a spherical bearing with the isolation of urethane bushings. The stainless monoball bearing is lined with PTFE lubricant and suspended in 80A urethane and housed in a hard anodized 6061-T6 aluminum mount. The spherical bearing is a better design than most rear shock mounts because it allows the shock to move and tilt without side-loading the shock shaft (which leads to premature failure of the shock). Most Genuine BMW and aftermarket shock mounts are not designed for shock angles and the stress that track or performance driving will put on the shock shaft. The ECS shock mount is properly designed to handle these loads. The internal bearing is also replaceable - it will be years before you have to replace the entire mount. The ECS mount is fully encapsulated to prevent the common shock mount failure of the stock mount design.

ECS RSM features:

  • Maintenance free, PTFE lined, stainless steel monoball spherical bearing for full shaft articulation
  • 80A polyurethane isolation bushings for NVH control
  • Accommodates 10mm, 12mm, or 14mm damper shafts
  • Fully constrained shaft mount makes RSM blow out impossible
  • Hard anodized 6061-T6 construction
  • Fully rebuildable design

* - the RSM comes with the BMW standard 10mm shock shaft bushings. 12mm is used on some performance shocks and 14mm is used on some true motorsport rear shocks.

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BMW E46 Z4 Ultimate Performance Rear Shock Mount Kit
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:378495
Part#: 002542ECS01KT1
In Stock
Sale - Save 3% $ 416.99

This product was last offered at the strikethrough price on
06-13-2026

$ 404.48 USD
Free Shipping
Sale - Save 3%
$ 416.99

This product was last offered at the strikethrough price on
06-13-2026

$ 404.48 USD
Free Shipping

BMW E46 Z4 Ultimate Performance Rear Shock Mount Kit

Elevate your BMW E46 or Z4's performance with the BMW E46 Z4 Ultimate Performance Rear Shock Mount Kit. Engineered for maximum durability and performance, this kit ensures precise handling and stability. Designed to withstand the rigors of aggressive driving, it offers improved suspension response and reduced noise. Upgrade your BMW E46 or Z4 with this premium rear shock mount kit.

  • Maximum durability and performance for enhanced driving experience
  • Precise handling and stability for improved control
  • Withstands aggressive driving for long-lasting reliability
  • Improved suspension response and reduced noise for a smoother ride
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Powerflex Black Series - Corporate Logo
T#:376516
Part#: PFR5-504-19BX2
Ships in 1 Business Day
$ 63.99 USD
Free Shipping on orders $49 and up
$ 63.99 USD
Free Shipping on orders $49 and up

Sway bars transmit cornering forces from the outside wheels to the inside wheels, helping to keep the vehicle flat during cornering. This, in turn, reduces body roll and improves the driver's cornering confidence. OEM rubber sway bar bushings are designed with comfort in mind, allowing the sway bar to articulate while permitting additional movement, leading to less-than-ideal bar retention and causes unnecessary body roll.

Powerflex polyurethane sway bar bushings are firmer than factory rubber bushings, reducing body roll and keeping sway bars in check. Polyurethane bushings won't slop around like OEM bushings, allowing sway bars to function at their fullest potential.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

This part fits the following BMWs:

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Powerflex - Corporate Logo
T#:34181270
Part#: PFF5-310-25H
Back Ordered
$ 57.99 USD
Free Shipping on orders $49 and up

The Powerflex Front Sway Bar Bushing - 25mm (Heritage) is made for BMW E24, E28, E32, E34, E36, and Z4 models.

  • 25mm Sway Bar Fit: Specifically designed for 25mm sway bars to improve stability.
  • Heritage Style: Classic look with modern polyurethane material for long-lasting durability.
  • Improved Handling: Reduces body roll and sway bar movement for better control.
  • Durable: Resists wear and road contaminants better than stock rubber bushings.

An excellent choice to enhance your car's handling while preserving its vintage appeal.

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Powerflex Black Series - Corporate Logo
T#:384019
Part#: PFR5-4612BX2
Ships in 1 Business Day
$ 93.99 USD
Free Shipping
$ 93.99 USD
Free Shipping
Understanding Subframe Bushings Subframe bushings are tasked with securing the subframe to the chassis. Factory Rubber Bushings: Balancing Ride Comfort and Handling Factory rubber bushings are a compromise between a cushy ride and responsive handling. Benefits of Powerflex Polyurethane Subframe Bushings Enhanced Performance Powerflex polyurethane subframe bushings are firmer than OEM bushings, resulting in better handling, a more planted rear-end, and more efficient suspension articulation, all with minimal sacrifice to ride quality. Expertise and Quality Powerflex is the number one selling suspension bushing manufacturer in Europe. Their experience with polyurethane bushing material and state-of-the-art manufacturing techniques allows them to produce premium performance bushings, made to exact-fit standards. Durability and Performance Powerflex performance polyurethane bushings are built to last longer than OEM rubber bushings while improving performance and allowing for a more engaging driving experience. Installation Tips The use of Powerflex Copper Grease PCG1 is recommended for ease of installation. Periodic reapplication is recommended to extend the squeak-free service life of bushings. Choosing the Right Bushings Powerflex Street Bushings: Ideal for Street-Driven Vehicles and Occasional Autocross or Track Time Powerflex street bushings are ideal for street-driven vehicles and those that see occasional autocross or track time. Powerflex Black Series Bushings: The Ultimate in Track and Race Bushings Need bushings for a dedicated track car? Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Lifetime Warranty Powerflex is proud to offer a lifetime warranty to the original purchaser on all products. OE / OEM Cross Reference Numbers: 33312283573 / 33312283574 Fits these BMW models: E46 - M3 & M3 CSL E85 - Z4 2.5i, 3.0i, 3.0Si, M Coupe, M Roadster
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Powerflex - Corporate Logo
T#:34214775
Part#: PFR5-4613H
Ships in 1 Business Day
$ 85.99 USD
Free Shipping on orders $49 and up
 

The Powerflex BMW E46 3 Series / E46 M3 / X3 / Z4 Rear Subframe Rear Bushing Inserts are engineered to provide a significant performance enhancement to the rear suspension of select BMW models, including the E46 3 Series, E46 M3, X3, and Z4. These inserts work in conjunction with the existing rear subframe bushings to deliver improved handling and stability.

Key Features:

  • Easy Installation: Designed to fit directly into the factory rear subframe bushings, these inserts make it simple to upgrade your suspension without needing to replace the entire bushing assembly. This saves time and effort during installation.
  • Enhanced Suspension Performance: Constructed from high-quality polyurethane, the inserts significantly reduce flex and unwanted movement in the rear subframe. This leads to improved suspension alignment, sharper cornering response, and overall better vehicle control, enhancing the driving experience.
  • Durable Construction: The polyurethane material used in these inserts is resistant to wear, heat, and environmental factors, ensuring they maintain their performance over time. This durability makes them suitable for various driving conditions, from daily commutes to spirited track sessions.
  • Comfort Retention: While providing increased stiffness for better handling, the inserts are designed to keep ride comfort intact. This makes them an excellent choice for those who want a more connected driving experience without compromising the smoothness expected from a BMW.

The Rear Subframe Rear Bushing Inserts are ideal for BMW E46 3 Series, E46 M3, X3, and Z4 owners who seek to enhance their vehicle's handling and performance characteristics. These inserts offer a straightforward and effective way to improve rear suspension dynamics, making them a valuable addition for both performance enthusiasts and daily drivers looking for a better driving experience.

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Powerflex Black Series - Corporate Logo
T#:384020
Part#: PFR5-4613BX2
Ships in 1 Business Day
$ 93.99 USD
Free Shipping
$ 93.99 USD
Free Shipping

Tasked with keeping the vehicles rear end firmly mounted while absorbing noise, vibration, and harshness (NVH) factory rubber subframe bushings were engineered to provide a balance of control while keeping the ride quality soft and supple. As a factory bushings age, they become brittle and begin to harden. When this happens the bushing will actually shrink and allow excess play, or movement in the subframe. This is typically felt by a sudden jerk or "thunking" noise under acceleration and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushings with full polyurethane this play is eliminated since the subframe is being held in place by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering and acceleration inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver. 

Powerflex street bushings are ideal for street driven vehicles and those that see occasional autocross or track time. Need bushings for a dedicated track car? Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure with Powerflex performance polyurethane control arm bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. ​

This part fits the following BMWs:
2000-2006 E46 ALL
2003 - 2006 E83 X3 2.5i X3 3.0i
2007 - 2010 E83 X3 3.0i X3 3.0si

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Powerflex - Corporate Logo
T#:383996
Part#: PFR5-4612X2
Ships in 1 Business Day
$ 85.99 USD
Free Shipping
$ 85.99 USD
Free Shipping
Understanding Subframe Bushings Subframe bushings are tasked with securing the subframe to the chassis. Factory Rubber Bushings: Balancing Ride Comfort and Handling Factory rubber bushings are a compromise between a cushy ride and responsive handling. Benefits of Powerflex Polyurethane Subframe Bushings Enhanced Performance Powerflex polyurethane subframe bushings are firmer than OEM bushings, resulting in better handling, a more planted rear-end, and more efficient suspension articulation, all with minimal sacrifice to ride quality. Expertise and Quality Powerflex is the number one selling suspension bushing manufacturer in Europe. Their experience with polyurethane bushing material and state-of-the-art manufacturing techniques allows them to produce premium performance bushings, made to exact-fit standards. Durability and Performance Powerflex performance polyurethane bushings are built to last longer than OEM rubber bushings while improving performance and allowing for a more engaging driving experience. Installation Tips The use of Powerflex Copper Grease PCG1 is recommended for ease of installation. Periodic reapplication is recommended to extend the squeak-free service life of bushings. Choosing the Right Bushings Powerflex Street Bushings: Ideal for Street-Driven Vehicles and Occasional Autocross or Track Time Powerflex street bushings are ideal for street-driven vehicles and those that see occasional autocross or track time. Powerflex Black Series Bushings: The Ultimate in Track and Race Bushings Need bushings for a dedicated track car? Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Lifetime Warranty Powerflex is proud to offer a lifetime warranty to the original purchaser on all products. OE / OEM Cross Reference Numbers: 33312283573 / 33312283574 Fits these BMW models: E46 - M3 & M3 CSL E85 - Z4 2.5i, 3.0i, 3.0Si, M Coupe, M Roadster
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Air Lift - Corporate Logo
T#:384243
Part#: 27695
In Stock at Vendor
$ 2,578.99 USD
Free Shipping
$ 2,578.99 USD
Free Shipping

Introducing the revolutionary Air Lift Performance 3H Height + Pressure Air Suspension Control System for BMW enthusiasts from Turner Motorsport. After three years of meticulous development and testing, Air Lift has created their most advanced product yet.

  • Combines pressure-based control with ride-height sensing technology for enhanced performance
  • Features a brilliant TFT color display for intuitive control and monitoring
  • Mobile app compatibility allows for easy adjustment of ride height and system settings via Bluetooth
  • State-of-the-art manifold with a 32-bit processor for precise control over all four corners of your BMW
  • Improved height sensor arm design for increased durability and longevity
  • Show mode feature enables height management while the vehicle is off

Kit Features:

  • Height + Pressure 3/8" Manifold
  • Air Lift Black Anodized Aluminum Display
  • Fully Integrated Wiring Harness That Also Incorporates Compressor Power
  • Necessary Fittings, Hardware, and Connectors For a Complete Install
  • Air Lift Automatically Draining Water Trap
  • 60ft of 3/8" Air Line
  • 3H Includes Rotational Height Sensors, Wiring, and Linkages
  • FREE Smart Phone App Which Works on Both iPhone and Android Integrated Into the Manifold, No Extra Module to Buy! Both Iphone and Android app are currently available
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Air Lift - Corporate Logo
T#:25109074
Part#: 27791
Ships in 4 Business Days
$ 2,948.99 USD
Free Shipping
$ 2,948.99 USD
Free Shipping
We asked ourselves: what would the ultimate air suspension be like? How would it combine an easy-to-use, reliable, and feature-rich system with powerful technology and beautiful design? Air Lift Performance 3H is the result of three years of development and testing. It is the most advanced product we have ever created. Air Lift Performance 3H combines pressure-based control with ride-height sensing technology. While both types of air management have been utilized before, this is the first product to harness the benefits of both sytems - instantly improving suspension control, performance, and vehicle ride flexibility.
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Powerflex - Corporate Logo
T#:34080764
Part#: PFR5-504-19H
Ships in 1 Business Day
$ 57.99 USD
$ 57.99 USD

The Powerflex Heritage Rear Sway Bar Bushing (19mm) for BMW E24, E28, E36, E46, and Z4 provides a modern suspension upgrade while preserving the classic aesthetics of older BMW models. This bushing is part of the Heritage Collection, offering a perfect blend of vintage style and enhanced performance, ideal for enthusiasts who want to maintain the originality of their vehicle while improving handling.

Key Features:

  • Material: Made from durable polyurethane, which is far more resistant to wear, heat, and road contaminants than OEM rubber. It provides a longer-lasting solution for suspension upgrades.

  • Heritage Look: Designed to maintain a classic appearance, the bushings are a subtle gray-green color, giving a nod to the original factory look of vintage BMW models while delivering modern performance benefits.

  • Fitment: Specifically designed for 19mm rear sway bars, ensuring a perfect fit for the rear sway bars of BMW E24, E28, E36, E46, and Z4 models.

  • Performance Enhancement: The polyurethane material provides a firmer connection between the sway bar and the chassis, significantly reducing body roll and improving cornering stability, leading to better handling and a more connected driving feel.

  • Easy Installation: This bushing is a direct replacement for the factory rubber bushings, making it simple to install with no modifications required. It’s designed for seamless integration into your car’s suspension system.

Benefits:

  • Improved Handling: Reduces excessive movement in the rear sway bar, providing sharper cornering, reduced body roll, and better overall vehicle control.

  • Long-Lasting Performance: The high-quality polyurethane construction ensures extended durability compared to traditional rubber bushings, which wear out faster due to heat and road conditions.

  • Classic Aesthetic: Keeps the vintage look of your BMW while offering modern suspension performance, making it an ideal solution for classic car enthusiasts who want to retain the car's period-correct style.

The Powerflex Heritage Rear Sway Bar Bushing (19mm) is an excellent upgrade for BMW owners looking to enhance the suspension performance of their classic models without sacrificing the vehicle's original aesthetic. Perfect for those seeking improved handling and durability in both everyday and spirited driving.

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Air Lift - Corporate Logo
T#:384245
Part#: 27705
In Stock at Vendor
$ 795.00 USD
Free Shipping
$ 795.00 USD
Free Shipping
BMW's performance with the Air Lift 3H Upgrade, is designed to enhance your existing 3P system. This convenient kit includes four height sensors along with all the necessary wiring and mounting hardware for a seamless installation. Key Features: Four height sensors for precise height control. Comprehensive wiring and mounting hardware included. Elevate your BMW's suspension to new heights of performance and control.
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Spring Joiner / Spring Locating Ring - Single
We Price Match - Give Us A Call or Chat!
H&R - Corporate Logo
T#:211199
Part#: ZT-I-X002A01
Ships in 3 Business Days
$ 59.99 USD
Free Shipping
$ 59.99 USD
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This aluminum spring seat fits between upper and lower 60mm springs to "join" them together. Typically you would have a main spring on top and a tender or helper spring on the bottom (or vice-versa). The spring joiner, or locator ring, fits between the springs with a retaining lip on the inside. We like this design better than an outside spring joiner because it's lighter and there's no material sitting on the outside where a tire might come in contact with it. These are priced per each.
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Air Lift - Corporate Logo
T#:384244
Part#: 27680
In Stock at Vendor
$ 1,932.69

This product was last offered at the strikethrough price on
08-02-2026

$ 1,407.50 USD
Free Shipping
$ 1,407.50 USD
Free Shipping

Air Lift proudly introduces the revolutionary Air Lift Performance 3P pressure-based air suspension control system after three years of extensive development and testing. This system represents the pinnacle of their innovation.

Air Lift Performance 3P amalgamates pressure-based control with optional ride-height sensing technology, leveraging the advantages of both systems to instantly enhance suspension control, performance, and ride flexibility.

Key Specifications:

  • Controller: Features a vibrant TFT color display with adjustable backlight, illuminated preset buttons, and full-color indicators for tank pressure, 4-corner active height, and pressure readings. It's encased in a black anodized CNC machined case, allowing customized mounting options with a Micro-USB port for power.
  • Mobile App: Works seamlessly with the free mobile app, enabling Bluetooth-based ride height and system settings adjustments. Additionally, the app facilitates direct system software updates to the manifold and controller.

Kit Features:

  • Pressure-based 1/4" Manifold
  • Black Anodized Aluminum Display
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Powerflex Black Series - Corporate Logo
T#:362738
Part#: PFR5-4609-21.5B2
Ships in 1 Business Day
$ 57.99 USD
Free Shipping on orders $49 and up

Sway bars transmit cornering forces from the outside wheels to the inside wheels, helping to keep the vehicle flat during cornering. This, in turn, reduces body roll and improves the driver's cornering confidence. OEM rubber sway bar bushings are designed with comfort in mind, allowing the sway bar to articulate while permitting additional movement, leading to less-than-ideal bar retention and causes unnecessary body roll.

Powerflex polyurethane sway bar bushings are firmer than factory rubber bushings, reducing body roll and keeping sway bars in check. Polyurethane bushings won't slop around like OEM bushings, allowing sway bars to function at their fullest potential.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

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Powerflex Black Series - Corporate Logo
T#:362717
Part#: PFF5-4602-27BX2
Ships in 1 Business Day
$ 78.99 USD
Free Shipping
$ 78.99 USD
Free Shipping

Sway bars transmit cornering forces from the outside wheels to the inside wheels, helping to keep the vehicle flat during cornering. This, in turn, reduces body roll and improves the driver's cornering confidence. OEM rubber sway bar bushings are designed with comfort in mind, allowing the sway bar to articulate while permitting additional movement, leading to less-than-ideal bar retention and causes unnecessary body roll.

Powerflex polyurethane sway bar bushings are firmer than factory rubber bushings, reducing body roll and keeping sway bars in check. Polyurethane bushings won't slop around like OEM bushings, allowing sway bars to function at their fullest potential.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

This part fits the following BMWs:
1999 - 2001 E46 Convertible 323ci 325ci 330ci
2002-2006 E46 Convertible 325ci 330ci
1998 - 2001 E46 323ci 325ci 330ci M3
2002 - 2006 E46 325ci 330ci
1998 - 2001 E46 Touring 323i 325i
2002 - 2006 E46 Touring 325i 325xi
1998 - 2001 E46 Sedan 320i 323i 325i 328i 330i
2002 - 2006 E46 Sedan 320i 325i 325xi 330i 330xi​
2006 - 2008 E86 Z4 3.0si Z4 M Coupe
2002 - 2008 E85 Z4 Roadster Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster

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Powerflex Black Series - Corporate Logo
T#:384008
Part#: PFF5-5601GBX2
Ships in 1 Business Day
$ 244.99 USD
Free Shipping
$ 244.99 USD
Free Shipping

Control arm bushings play a key role in connecting the wheels to the chassis of the vehicle. Tasked with keeping suspension geometry in check while absorbing noise, vibration, and harshness (NVH) factory rubber bushings were engineered to provide a balance of comfort and control. As a factory bushing ages, it becomes brittle and begins to harden. When this happens the bushing will actually shrink and allow excess play in the suspension joint. This is typically felt by a sudden jerk forward after the car comes to a stop and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushing with a full polyurethane unit or using a bushing insert, this play is eliminated since the suspension joint is being supported by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver.

Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure with Powerflex performance polyurethane control arm bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

This part fits the following BMWs:
2006 - 2008 E86 Z4 3.0si Z4 M Coupe
2002 - 2008 E85 Z4 Roadster Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster

 

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Condor Speed Shop - Corporate Logo
T#:577566
Part#: RTAB36-OFFSET
In Stock at Vendor
$ 99.00 USD
Free Shipping
$ 99.00 USD
Free Shipping
Condor's Offset Rear Trailing Arm Bushings (RTABs) are perfect for the street and the track. They're designed to help correct rear toe-in and toe-out issues on lowered cars. To correct for toe-in: RTABs can be installed with the thick side inboard to help push the rear trailing arms towards the outsides of the car. To correct for toe-out when running minimal camber setup: RTABs can be installed with the thin sides inboard to help push the trailing arms inwards. The amount of total adjustment is purely dependent on how low your car is, but we've seen toe adjustment from 1/8” out on each side to 1/8” in on each side, which is a super nice range for the e36 rear end! They use UHMW in all of their suspension bushings because it is self-lubricating, meaning it requires no grease when installing, has almost zero deflection yet also absorbs some vibration. It will outlast other types of rubber or urethane bushings. They include black oxide plated steel plates for each RTAB to prevent lateral movement between the bushing material and the aluminum. Polyurethane and rubber bushings will deflect and slide, causing your rear alignment settings to change mid-corner. With these bushings, you won't have to worry about dynamic changes in your toe settings; the rear alignment stays in check during hard cornering, braking, and acceleration. This item fits the following BMWs: 1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe Kit includes a pair of trailing arm bushings
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Powerflex - Corporate Logo
T#:34147741
Part#: PFR5-4611H
Ships in 1 Business Day
$ 143.99 USD
Free Shipping on orders $49 and up

For BMW E46 (3 Series), Z4, and X3, upgrading to Powerflex rear subframe rear bushings is an effective way to improve the durability and handling of the suspension system. Powerflex polyurethane bushings are a popular upgrade over the factory rubber bushings, offering enhanced performance and longevity, particularly for cars used in performance driving or that are susceptible to subframe wear.

Features and Benefits of Powerflex Rear Subframe Rear Bushings:

  • High-Performance Polyurethane Material: Powerflex bushings are constructed from polyurethane, which is significantly more resistant to deterioration than rubber. Polyurethane is less affected by elements like heat, road debris, and oils, ensuring that the bushings maintain their performance characteristics for much longer.
  • Enhanced Handling Precision: One of the primary benefits of polyurethane bushings is reduced subframe movement. By replacing the flexible rubber bushings with stiffer polyurethane versions, you’ll experience sharper handling, more precise suspension response, and improved chassis control, especially during hard acceleration, cornering, and braking.
  • Reduced Subframe Flex: The rear subframe is subjected to significant forces, particularly under high-performance driving conditions. Powerflex bushings help reduce the flex that can occur in the subframe, keeping the rear end more stable, improving vehicle control, and enhancing cornering performance.
  • Longevity and Reliability: Powerflex bushings are engineered to outlast the stock rubber bushings by a significant margin. They are designed to endure the demands of high-performance driving without deteriorating, which leads to fewer replacements over the life of the vehicle.
  • Optimized NVH Balance: While stiffer than rubber bushings, Powerflex designs its bushings to minimize the increase in noise, vibration, and harshness (NVH). This ensures that the bushings provide improved handling without compromising ride comfort, making them suitable for daily drivers as well as performance-focused cars.

Installation Considerations:

  • Direct Replacement: Powerflex bushings are manufactured to be direct replacements for the factory bushings, meaning they fit into the stock locations without modification. However, accessing the rear subframe for installation can be a complex task, often requiring the subframe to be dropped, so professional installation is recommended.
  • Subframe Reinforcement: For vehicles like the BMW E46, known for rear subframe cracking, many owners choose to upgrade their bushings alongside subframe reinforcement plates. This combination helps prevent the stress fractures that can occur in the mounting points.

Applications:

  • BMW E46 (3 Series)
  • BMW Z4 (E85/E86)
  • BMW X3 (E83)

Suitable For:

  • Daily Driving and Performance Use: Whether you're using your BMW for spirited street driving or taking it to the track, Powerflex rear subframe rear bushings provide improved handling and stability without significantly increasing NVH.
  • Subframe Longevity: If your car is prone to subframe issues or you want to take preventive measures, upgrading to these bushings will help reduce the wear on critical suspension components, extending the life of the subframe and related parts.

By upgrading to Powerflex rear subframe rear bushings, BMW E46, Z4, and X3 owners can expect improved handling, reduced subframe flex, and longer-lasting suspension performance, making it an ideal upgrade for both street and track use. These bushings strike a great balance between enhancing performance while maintaining daily driving comfort.

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Whiteline - Corporate Logo
T#:26638241
Part#: W53519
Ships in 3 Business Days
$ 116.99 USD
Free Shipping on orders $49 and up
Powerflex - Corporate Logo
T#:383988
Part#: PFF5-5601G-60X2
Ships in 1 Business Day
$ 232.99 USD
Free Shipping
$ 232.99 USD
Free Shipping

Control arm bushings play a key role in connecting the wheels to the chassis of the vehicle. Tasked with keeping suspension geometry in check while absorbing noise, vibration, and harshness (NVH) factory rubber bushings were engineered to provide a balance of comfort and control. As a factory bushing ages, it becomes brittle and begins to harden. When this happens the bushing will actually shrink and allow excess play in the suspension joint. This is typically felt by a sudden jerk forward after the car comes to a stop and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushing with a full polyurethane unit or using a bushing insert, this play is eliminated since the suspension joint is being supported by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver.

Powerflex street bushings are ideal for street driven vehicles and those that see occasional autocross or track time. Need bushings for a dedicated track car? Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure with Powerflex performance polyurethane control arm bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

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H&R Sport Spring Set - Z4 M Roadster
We Price Match - Give Us A Call or Chat!
H&R - Corporate Logo
T#:125
Part#: 29119-1
Ships in 3 Business Days
$ 469.00 USD
Free Shipping
$ 469.00 USD
Free Shipping
Front Lowering -1.0"
Rear Lowering -1.0"

Enhance the look of your BMW E85 Z4 M Roadster with a reduced fender well gap. H&R Sport Springs lower the vehicle center of gravity and reduce body roll for better handling. The progressive spring rate design provides superb ride quality and comfort. A lower wind resistance signature will make the vehicle more streamlined and improve gas mileage. If you are only looking to improve one part of your vehicle’s suspension, you cannot go wrong with installing Sport Springs. Fun to drive, H&R Sport Springs are the number one upgrade for your vehicle.

This item fits the following BMWs:
2006-2008 Z4 BMW Z4 M Roadster M Coupe
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Whiteline - Corporate Logo
T#:54388458
Part#: W22801
Ships in 3 Business Days
New Item
$ 28.99

This product was last offered at the strikethrough price on
10-01-2026

$ 26.99 USD
Free Shipping on orders $49 and up
$ 26.99 USD
Free Shipping on orders $49 and up
Engineered to optimize rear roll stiffness and eliminate the dynamic compliance of aging factory components
JT Design - Corporate Logo
T#:1386
Part#: JTD909-75-KIT
Ships Today
$ 32.00 USD
Free Shipping on orders $49 and up
The bushings in the Aluminum Rear Shock Tower Mounts (#JTD909) and the Repair Shop Rear Shock Mounts (#JRDRP) are replacable. Simply disassemble the shocks and mounts, replace the bushings, and reassemble. On the JTD909 the shock mount doesn't even have to be removed from the chassis. This set includes enough bushings to replace bushings on both the left and right mounts (4 total).
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ECS Billet Rear Sway Bar Brackets With Polyurethane Bushings - Pair -...
10X Entries Into Our F80 M3 Sweepstakes
For use with Aftermarket 23mm rear sway bar
ECS - Corporate Logo
T#:3443018
Part#: 016921LA09
Ships in 8 Business Days
Sale - Save 10% $ 113.99

This product was last offered at the strikethrough price on
06-14-2026

$ 102.59 USD
Free Shipping
Sale - Save 10%
$ 113.99

This product was last offered at the strikethrough price on
06-14-2026

$ 102.59 USD
Free Shipping
The ECS Tuning Billet Rear Sway Bar Mounting Kit was designed, engineered, tested and quality inspected thanks by their Research and Development team in Wadsworth, Ohio facility. ECS ensures that the highest level of precision and quality is delivered throughout rigorous long term product testing and leading edge product development methods. This kit provides your vehicle with a more rigid mounting solution from the sway bar to chassis than the OEM steel brackets. With an improved sway bar mounting bracket and the included polyurethane sway bar bushings, you can expect to achieve an increase in rear sway bar effectiveness and less body roll as a result.
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IRP - Individual Racing Parts - Corporate Logo
T#:401368
Part#: IRPRTM-B
Special Order: No Guaranteed ETA
$ 185.99 USD
Free Shipping
$ 185.99 USD
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Want the best performance option in shock tower mounts? IRP has created their pillow-ball rear shock mounts for just this need. These rear shock mounts are designed for use on the track and racing. This set of mounts will help your rear shocks perform the best they can in all conditions. The advantage to using a mount with spherical bearing is that it allows the shock to freely move off axis without side loading the shock shaft like rubber or polyurethane mounts do. Side loading a shock increases stiction and wear which decreases its efficiency. Because these are mounts without an isolator (rubber or polyurethane) to dampen road noise and vibrations we do not recommend them for street cars.

The bearing sleeve and poly bushing are built to work with all stock style shocks such as Bilstein and H&R coilover and suspension kits.

Fits the following BMW chassis:
E36 BMW All Submodels except for 318ti
E46 BMW All Submodels
E30 BMW All Submodels
E36 Z3 BMW All Submodels
E85/E86 Z4 BMW All Submodels

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Turner Motorsport - Corporate Logo
T#:340477
Part#: TSU998062A
Ships on Feb 10, 2027
Sale - Save 25% $ 132.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 99.74 USD
Free Shipping
Sale - Save 25%
$ 132.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 99.74 USD
Free Shipping
These aluminum upper spring hats are for coil over struts with a 2.25" coil over spring. The specs are listed below; match the hat specs with your spring and strut. For a proper fitment you must confirm the spring hat matches the strut pin, especially on high-end motorsport struts.
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Turner Motorsport - Corporate Logo
T#:340476
Part#: TSU9980548
Ships on Feb 10, 2027
Sale - Save 25% $ 132.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 99.74 USD
Free Shipping
Sale - Save 25%
$ 132.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 99.74 USD
Free Shipping
These aluminum upper spring hats are for coil over struts with a 2.25" coil over spring. The specs are listed below; match the hat specs with your spring and strut. For a proper fitment you must confirm the spring hat matches the strut pin, especially on high-end motorsport struts.
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Powerflex - Corporate Logo
T#:378985
Part#: PFR5-5630-12X2
Ships in 1 Business Day
$ 137.99 USD
Free Shipping
$ 137.99 USD
Free Shipping

Rear shock mounts are tasked with securing shocks while absorbing noise, vibration and harshness that would otherwise be associated with a solid mount. Factory rubber bushings are a compromise between a cushy ride and responsive handling.

Powerflex polyurethane rear shock mounts are firmer than OEM bushings, resulting in better handling, a more responsive rear-end, and more efficient suspension articulation - all with minimal sacrifice to ride quality.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers.

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Powerflex Black Series - Corporate Logo
T#:379019
Part#: PFR5-5630-12BX2
Ships in 1 Business Day
$ 137.99 USD
Free Shipping
$ 137.99 USD
Free Shipping

Rear shock mounts are tasked with securing shocks while absorbing noise, vibration and harshness that would otherwise be associated with a solid mount. Factory rubber bushings are a compromise between a cushy ride and responsive handling.

Powerflex polyurethane rear shock mounts are firmer than OEM bushings, resulting in better handling, a more responsive rear-end, and more efficient suspension articulation - all with minimal sacrifice to ride quality.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers.

This part fits the following BMWs:
1992-1999 E36 318i 318is 318ti 320i 323i 325i 325is 328i 328is M3

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