BMW Suspension Parts

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: 215mm (8.46") to 275mm (10.82") 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

Black anodized billet sway bar end links to replace your flimsy and corroded factory units. Removable hardware for a lifetime serviceable component!

Your factory end link brackets are a one piece design with an integrated stud made of flimsy metal with no coating to protect from the elements. Over the years the end link hardware rusts right to the integrated stud and when you go to remove the end links or brackets they are one strong turn and a snap away from needing to be replaced.

Not only did ECS come up with a stronger solution with a superior resistance to corrosion but went the extra mile to incorporate hardware that can be replaced time and time again so you will never need to replace the brackets themselves. The end link brackets feature chamfers and locator pins to fit perfectly in factory location and make for a straight forward install. The brackets featuring a slotted area for the bolt head to sit so you don't have the headache of having to get a wrench in the tight space behind the bracket while installing them.

Kit Contents:

A pair of rear end link brackets
Hardware needed for installation
Part Design:

Billet aluminum brackets
Zinc coated hardware
Superior corrosion resistance
Large upgrade from factory components

Dramatically improve performance and aesthetics with an average lowering up to 1.4" front and rear.

Take your F3x to the next level with upgraded performance and aesthetic. ECS lowering springs are specifically designed with both handling and comfort in mind for the best mix or performance and drivability. With an average lowering range of 1.0"-1.4" you have the added benefit of lower center of gravity providing superior cornering and better steering feedback. Lowering springs not only increase handling performance they provide an astounding aesthetic upgrade by decreasing the wheel gap and giving your car a more planted/fitted appearance.

FEATURES AND DESIGN:

MADE IN THE USA
Average lowering of 1.0" to 1.4"
Front spring rate: 184 lbs/in
Rear spring rate: 462 lbs/in
Lowered center of gravity
Linear style springs
Black powder coating with red ECS logo
Designed specifically for your chassis these F3x lowering springs feature a linear style spring similar to a coilover. The issue with coilovers is the rough ride due to a drastic drop and much higher spring rates. When you have higher spring rate like coilovers it takes much more force to compress the spring which leads to a much more rigid ride. ECS lowering springs provide a happy medium between the factory suspension and coilover suspension. These springs are stiffer than factory but softer than a coilover spring to achieve the balance of increased performance and aesthetics while retaining a comfortable ride.

What is spring rate?
​You may ask yourself "what is the spring rate and how does it affect my ride?" Spring rate is the amount of force needed to compress a spring one inch. For example if you have a spring rate of 300lbs per inch it will take 300lbs of force to compress the spring one inch. An average coilover for your F3x has over 400 lbs/in for the front and over 500 lbs/in for the rear, this means that it will take over 400lbs of force to compress your front spring one inch and over 500lbs of force to compress the rear one inch. The higher the spring rate, the more rigid your ride is going to be. ECS lowering springs for your F3x have a spring rate of 184 lbs/in in the front and 462 lbs/in, an increase over factory but much less than a coilover. You can now both understand and explain the benefits of lowering springs to find the best solution for you.

Fine-tuning your coilover damping shouldn’t mean stripping out your rear seats or interior panels. On many applications, rear shock adjusters are hidden behind carpet, trim, or seatbacks, making quick adjustments a hassle.

The ECS Rear Damping Extension Kit solves that problem with a clean and functional solution. These flexible extensions relocate the adjustment knobs to an easily accessible point above the rear shock towers, letting you dial in your suspension from inside the cabin, no disassembly required.

Installation is straightforward: simply drill a small access hole in your interior trim and route the extension cables through. The adjustment knobs can be removed to allow the line to pass through smaller openings, minimizing cutting. For proper installation, be sure to fully loosen the set screw, insert the cable, then securely tighten it using the provided Allen key.

Kit Includes:

(2) Rear damping adjuster extension cables

Installation hardware and Allen key

A smart upgrade for track cars, daily drivers, or anyone who values easy access to suspension tuning, without compromising interior fit and finish.

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.

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.

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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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.

Due to their soft rubber construction, OE strut mounts are known to wear at an accelerated rate. Many high-mileage vehicles fall victim to strut mount failure, which is commonly associated with annoying clunks, groans, or rattles from the front suspension.

With this issue in mind, ECS Tuning developed their heavy-duty front strut mount with upgraded, higher durometer rubber to resolve sloppy handling and increase longevity. Manufactured precisely within OEM tolerances, these mounts are a perfect fit for your BMW.

Features:

Reduces deflection: Increases vehicle handling and cornering dynamics by removing deflection within the strut mount. Increases longevity: Upgraded rubber construction makes for a stiffer mount, less prone to cracking and general degradation. Developed in-house: Designed and tested by ECS Tuning engineers, this mount is sure to outlast an OE replacement. Upgrade to a better strut mount without sacrificing ride comfort! Improve longevity and ride control all at once.

The BMW E39 540, M5 (1996 - 2004) Front Inner Track Control Arm Bushing is a vital component in the suspension system, providing stability and precision to the front control arms. Designed to withstand the rigors of daily driving and performance demands, this bushing helps maintain optimal alignment, handling, and overall ride quality in the high-performance E39 540i and M5 models.

Key Features:

1. High-Quality Material:

   • Constructed from durable rubber or polyurethane, these bushings are designed to endure constant stress, ensuring long-lasting performance under both normal and aggressive driving conditions.

2. Enhanced Suspension Performance:

   • The bushing reduces excessive movement in the control arm, ensuring improved suspension alignment and handling characteristics. This is especially important in performance models like the BMW 540i and M5, where precision handling is critical.

3. Minimized Vibration and Noise:

   • Worn or degraded bushings can allow vibrations to travel through the suspension system into the cabin. New bushings help dampen these vibrations, resulting in a smoother, quieter, and more comfortable driving experience.

4. Improved Steering Response:

   • By reducing flex and movement in the control arm connection, these bushings provide a more direct and responsive steering feel. This is particularly noticeable in cornering and high-speed driving, where handling precision is essential.

5. Direct Fit for Easy Installation:

   • These bushings are designed as direct-fit replacements for the original parts, ensuring easy installation for BMW E39 540i and M5 models. They restore the vehicle to factory performance or better, depending on material choice (rubber vs. polyurethane).

6. Polyurethane Upgrade for Performance Enthusiasts:

   • For those seeking even greater performance, polyurethane bushings offer increased rigidity and longevity over traditional rubber. This upgrade provides sharper handling and reduces bushing flex, making it ideal for track or spirited driving.

Benefits of Upgrading or Replacing:

• Restore Suspension Integrity: Worn-out bushings can cause poor suspension geometry, leading to uneven tire wear and compromised handling. Replacing the bushings restores proper alignment and control.
• Better Ride Quality: Fresh bushings absorb impacts and vibrations more effectively, improving the overall ride comfort, especially in high-mileage vehicles.
• Sharper Handling and Steering: New bushings ensure more precise control arm movement, translating into better steering feedback and cornering performance.

In conclusion, the BMW E39 540, M5 Front Inner Track Control Arm Bushing is a crucial part of the suspension system, responsible for maintaining alignment and handling dynamics. Whether you’re replacing worn bushings or upgrading to polyurethane for enhanced performance, this component ensures that your BMW E39 540i or M5 delivers the precision and comfort it was designed for.

MINI R56 Front Control Arm - Rear Bushings With Brackets offers an upgraded solution for Mini Gen 2 models (R55-R59), providing enhanced durability and performance. Featuring pre-installed Powerflex polyurethane bushings within high-quality Chassis Technology Europe (CTE) brackets, this setup is ideal for owners seeking a straightforward installation without the hassle of pressing or pulling tools.

• Designed for MINI R56 models, also compatible with R55-R59, for a precise fit
• Pre-installed Powerflex bushings offer improved handling and longevity over stock rubber bushings
• High-quality polyurethane construction withstands wear and maintains performance longer than traditional bushings
• CTE-supplied brackets simplify installation by eliminating the need for additional pressing or pulling tools
• Enhances steering response and stability, making it ideal for both daily driving and spirited performance
• Reduces maintenance time and cost with a simple bolt-on solution
• Provides a more stable and controlled ride experience, especially during cornering

The Powerflex BMW E34 5 Series / E32 7 Series Rear Diff Rear Mount Bushing is designed to enhance the performance and durability of the rear differential mounting system in BMW models. By replacing the factory rubber bushing with high-performance polyurethane, this bushing provides improved handling and longer-lasting reliability.

Key Features:

• Precision Fit for E34 and E32 Models: Engineered specifically for the BMW E34 5 Series and E32 7 Series, this bushing is a direct replacement for the rear differential’s rear mount. It ensures a secure fit, keeping the differential properly aligned for optimal performance.
• Polyurethane Durability: The bushing is made from tough polyurethane, which offers superior resistance to wear and degradation compared to the factory rubber bushings. This material is designed to withstand extreme conditions, such as heat, oil exposure, and road contaminants, ensuring it remains effective for much longer.
• Enhanced Drivetrain Control: Replacing the softer rubber bushing with this firmer polyurethane bushing reduces differential movement under load, resulting in better power transfer and more precise handling. It minimizes drivetrain slop, making the vehicle feel more responsive during acceleration and cornering.
• Improved Handling Performance: By limiting excess movement in the differential, the bushing enhances rear-end stability and helps maintain better control of the vehicle. This leads to sharper, more predictable handling, especially when driving aggressively or under heavy load.
• Maintained Comfort: While this bushing improves performance, it is also designed to retain a degree of ride comfort. The material strikes a balance between firmness for improved handling and flexibility for everyday drivability, making it suitable for both spirited driving and regular use.

This Rear Diff Rear Mount Bushing is perfect for BMW E34 and E32 owners looking to improve their vehicle’s rear suspension dynamics and drivetrain stability. It’s an ideal choice for enthusiasts who want better control and responsiveness without sacrificing too much ride comfort, offering a long-lasting, low-maintenance upgrade for daily driving or performance use.

The ECS Tuning Billet Front Sway Bar Mounting Kit will provide 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.

PART DESIGN

The front sway bar mounting brackets are made from a solid piece of 6061-T6 billet aluminum that are precision CNC-machined to bolt into the OEM mounting location while utilizing greaseable, polyurethane bushings. They are Type II black anodized for corrosion protection and include zinc flake coated Class 12.9 alloy steel bolts for premium performance.

The red polyurethane bushings feature a greaseable channel for extended service life and quieter operation than standard polyurethane bushings.

PERFORMANCE FEATURES

Billet & poly mounts replacing the OEM steel & rubber configuration you can expect faster reaction speed and greater effectiveness from your front sway bar due to less deflection. This translates to better handling with sharper, flatter cornering with reduced body roll.

PRODUCT DEVELOPMENT

ECS Billet Front Sway Bar Mounting Kit was designed, engineered, tested and quality inspected by the Research and Development team in our Wadsworth, Ohio facility to ensure the highest level of precision and quality is delivered throughout rigorous long term product testing and leading edge product development methods.

INSTALLATION AND SUPPORT

Installation is simple. Simply unbolt your front sway bar mounting brackets and slip over our poly bushings and billet mounting brackets with the included hardware. That's it! Enjoy better handling and a crisp front suspension.

SPECIAL NOTE: You can use any conventional automotive bearing grease for service.

Front Control Arm Rear Bushings With Brackets BMW E46 Z4 provide a significant upgrade for BMW E46 and Z4 E85 & E86 owners seeking enhanced performance and handling. Designed by Turner Motorsport, these high-quality bushings optimize control and road-handling capabilities to elevate your driving experience.

• Improved Handling and Stability: Enhances the already impressive handling of BMW E46 and Z4 models by reducing sway and body roll during cornering, ensuring stability and responsiveness in tight turns.
• Enhanced Cornering Performance: Increases rigidity for more precise and controlled cornering, providing better grip and control whether on winding roads or racetracks.
• Mitigation of Understeer: Addresses understeer by redistributing load more evenly between front and rear tires, improving balance and control.
• Durability and Longevity: Constructed from high-quality materials for extended service life, these bushings endure daily driving and spirited performance while reducing wear on suspension components.
• OE / OEM Cross Reference Numbers: 31126757623

For the BMW E46 M3, upgrading the rear subframe front bushings is a smart move for both performance enhancement and preventive maintenance. The rear subframe is a critical component in the E46 M3’s suspension system, and using stronger, more durable bushings helps to ensure the car’s longevity and improve its overall handling dynamics.

Features and Benefits of Upgraded Rear Subframe Front Bushings:

• Enhanced Strength and Durability: Upgraded bushings, like those from Powerflex or AKG Motorsport, are made from materials such as polyurethane or even solid aluminum. These materials are much stronger than the stock rubber bushings, which tend to wear out, crack, and degrade over time due to exposure to heat, road grime, and oils.
• Improved Handling Performance: By installing stiffer bushings, the rear subframe's movement is reduced, resulting in a more connected and responsive feel from the chassis. This leads to better handling, sharper cornering, and more precise suspension performance under load, making it ideal for track use or spirited street driving.
• Increased Rear End Stability: With stronger bushings, the subframe stays more securely mounted to the chassis, reducing the flex that can occur during hard acceleration or cornering. This helps to enhance the rear end’s stability, giving drivers more confidence, especially in high-performance driving scenarios.
• Protection Against Subframe Issues: The E46 M3 is notorious for rear subframe issues, where cracks can develop in the subframe mounting points over time. Upgrading the bushings helps distribute forces more evenly, reducing the likelihood of stress fractures and extending the life of the subframe.
• Long-Term Solution: High-quality polyurethane or solid bushings are designed to last much longer than the OEM rubber ones. They provide a long-lasting upgrade that doesn’t degrade quickly, making them a "fit-and-forget" solution for many drivers.

Installation and Considerations:

• Direct OEM Replacement: These upgraded bushings are designed to replace the factory bushings without the need for modification. However, installation can be labor-intensive, as the rear subframe must be dropped to access the bushings.
• Reinforcement Opportunity: Since the E46 M3 is known for subframe cracking, many owners opt to upgrade their bushings in combination with rear subframe reinforcement plates, which are welded to the chassis to prevent cracks from forming. This makes it an ideal time to tackle both issues together.
• Minimal Increase in NVH: Polyurethane bushings are stiffer than rubber but generally do not add a significant amount of noise, vibration, or harshness (NVH). However, solid aluminum bushings, while offering the highest performance, can introduce more NVH, which may not be ideal for daily driving.

Best Applications:

• Performance Upgrades: If you're modifying your E46 M3 for track use, autocross, or performance street driving, upgrading to stiffer rear subframe front bushings is a must for better handling and durability.
• Preventive Maintenance: Even if you're not tracking your car, replacing worn-out bushings with polyurethane or solid bushings can help prevent subframe issues and extend the life of your suspension system.