BMW Suspension Parts for BMW 4 Series F33 (2014+)

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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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Powerflex Black Series - Corporate Logo
T#:376381
Part#: PFR5-425BX2
In Stock
$ 119.99 USD
Free Shipping
$ 119.99 USD
Free Shipping

Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.

By replacing these bushings with full polyurethane, the movement is eliminated since the mounting point is supported by a much stiffer material that will not harden or shrink over time. This means less stress on the driveshaft and axles and greater longevity of supporting components. 

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 acceleration response, more direct shifting feel and overall improved drivetrain composure with Powerflex performance polyurethane 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 Race Polyurethane Rear Subframe Bushing Set (Anti-squat) - ...
This is an M specification bushing and is an upgrade for your vehicle
Powerflex Black Series - Corporate Logo
T#:379096
Part#: PFR5-1220BX2
Ships in 2 Business Days
$ 246.99 USD
Free Shipping
$ 246.99 USD
Free Shipping
Raises front of the rear subframe giving additional anti-squat similar to the M range. For standard subframe location use PFR5-420. 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.
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Powerflex Black Series - Corporate Logo
T#:376388
Part#: PFR5-422BX2
In Stock
$ 194.99 USD
Free Shipping
$ 194.99 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. 

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Powerflex Black Series - Corporate Logo
T#:376432
Part#: PFR5-420BX2
Ships in 2 Business Days
$ 226.99 USD
Free Shipping
$ 226.99 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:
2008 - 2013 E82 1 Series Coupe 128i 135i 135is 1M Coupe
2006 - 2008 E90 323i 325i 325xi 328i 328xi 330i 330xi 335i 335xi
2009 - 2012 E90 323i 323i 328i 328xi 335d 335i 335i xDrive 335xi
2006 - 2009 E91 325xi 328i 328xi
2009 - 2011 E91 328i 328xi 
2007 - 2013 E92 328i 328xi 335i 335xi
2007 - 2013 E93 328i 335i

 

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Powerflex Black Series - Corporate Logo
T#:376481
Part#: PFR5-426B
Back Ordered
$ 61.99 USD
Free Shipping on orders $49 and up

Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.

By replacing these bushings with full polyurethane, the movement is eliminated since the mounting point is supported by a much stiffer material that will not harden or shrink over time. This means less stress on the driveshaft and axles and greater longevity of supporting components. 

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 acceleration response, more direct shifting feel and overall improved drivetrain composure with Powerflex performance polyurethane 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:
2008 - 2013 E82 1 Series Coupe 128i 135i 135is 1M Coupe
2006 - 2008 E90 323i 325i 325xi 328i 328xi 330i 330xi 335i 335xi
2009 - 2012 E90 323i 323i 328i 328xi 335d 335i 335i xDrive 335xi
2006 - 2009 E91 325xi 328i 328xi
2009 - 2011 E91 328i 328xi 
2007 - 2013 E92 328i 328xi 335i 335xi
2007 - 2013 E93 328i 335i

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Powerflex Black Series - Corporate Logo
T#:555041
Part#: PFF5-4102X2B
Ships in 2 Business Days
$ 106.99 USD
Free Shipping
$ 106.99 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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Powerflex Black Series - Corporate Logo
T#:21308431
Part#: PFF5-1903-23.6BL
Ships in 2 Business Days
$ 80.99

This product was last offered at the strikethrough price on
05-19-2026

$ 72.99 USD
Free Shipping on orders $49 and up
$ 72.99 USD
Free Shipping on orders $49 and up
Opting for aftermarket front sway bar bushings featuring an increased diameter of 23.6 mm for your BMW F3X can yield numerous advantages, notably elevating the handling and overall performance of your vehicle. Conversely, sticking with OEM front sway bar bushings will result in restricted performance in terms of F3X handling, a shorter lifespan for the bushings, and accelerated wear and tear. Furthermore, OEM bushings will cause more noticeable swaying during cornering when compared to their aftermarket counterparts. By selecting PowerFlex Black Series front sway bar bushings, you can anticipate the following benefits: Minimized Body Roll Enhanced Cornering Stability Improved Steering Response Enhanced Traction Prolonged Lifespan For cross-referencing with OE/OEM parts, the relevant numbers are: 31356792138.
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KMAC - Corporate Logo
T#:16474811
Part#: 193926-9G
Special Order: No Guaranteed ETA
$ 320.00 USD
Free Shipping on orders $49 and up
Nearly every car manufactured in the modern era carries a dark secret – fully-adjustable suspension has been all but eliminated in the name of cost-cutting and assembly-line efficiency. What this means for you is increased tire wear and more frequent replacement, as a “full alignment” consists only of rudimentary toe-angle adjustment. For over forty years, K-MAC has been hard at work developing a solution to this problem with patented innovations in camber/caster plates and bushing kits, allowing easy adjustment and a true “full four-wheel alignment” to be performed by any competent shop. These bushings make camber adjustments possible for the first time, and improve the ability to complete toe angle adjustments. When used in conjunction with the K-MAC Camber and Toe kit and Rear Adjustable Trailing Arms allows full adjustability of the 5 multi-link rear arms and positive location. Bolt-on installation – insertion/extraction tube included! Easily adjusted on the car with basic hand tools Unique failsafe locking hardware – set & forget! High quality elastomer compound resists binding Hardened & nickel-chrome plated centers for maximum bushing life 2x the load area of stock bushings Spiral grease grooves
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KMAC - Corporate Logo
T#:404062
Part#: 193616-8H
Special Order: No Guaranteed ETA
$ 395.00 USD
Free Shipping
$ 395.00 USD
Free Shipping

Upgrade your BMW's suspension system with K-MAC's innovative Camber/Caster Plates and Bushing Kits.

Combat increased tire wear and frequent replacements caused by limited adjustability with these patented solutions. For over forty years, K-MAC has been pioneering fully-adjustable suspension components, allowing for precise camber adjustments and toe angle corrections, resulting in a true "full four-wheel alignment."

  • Patented camber/caster plates and bushing kits for precise alignment
  • Allows easy adjustment for a full four-wheel alignment
  • Bolt-on installation with insertion/extraction tube included
  • Easily adjusted on the car with basic hand tools
  • Unique failsafe locking hardware ensures settings remain secure
  • High-quality elastomer compound resists binding for longevity
  • Hardened & nickel-chrome plated centers for maximum bushing life
  • Spiral grease grooves for improved lubrication
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KMAC - Corporate Logo
T#:389642
Part#: 192616-2N
Special Order: No Guaranteed ETA
$ 695.00 USD
Free Shipping
$ 695.00 USD
Free Shipping

Location: Front
Type: Street/Track, Stage 2
Upper spring perch: OEM-size, 60mm, and 2.5" included
Bearings: urethane OEM-type center bushing; lubricated radial thrust bearing on spring perch

KMAC camber/caster plates use a patented adjustment method designed for easy and rapid alignment adjustments. The KMAC design has a 'floating' inner camber plate, rather than slotted, to allow camber and caster to be adjusted together. To adjust, simply loosen the top three nuts on the strut tower and position the KMAC mount to match your desired alignment settings. The KMAC design allows more camber and caster adjustment because separate caster hardware is eliminated. While primarily designed to increase negative camber for track use these can also be used to fix alignment issues that cause uneven tire wear or unwanted handling behavior.

KMAC camber kits are the most complete kits on the market, with all of the common spring perch options and strut hardware included. The OEM size spring perch as well as 60mm and 2.5" spring isolators are included which makes it easy to upgrade from stock struts to coil overs without having to buy new camber plates. Or swap springs on your coil overs between 60mm and 2.5" without buying additional upper perches. Also included are the most common strut pin hardware - 14mm lower bearing adapters and 12x1.5, 12x1.75, and 14x1.5 top nuts. This takes the guesswork out of ordering the correct hardware for your strut type. The urethane main bushing is also replaceable and the camber plate parts are made from 7075-grade aluminum for a lifetime of camber plate use.

Fitment Note 1: replaces factory BMW strut mount with 3 mounting bolts (up to 12/2014 prodution). Not for cars with 5-bolt strut mounts.

Fitment Note 2: suspensions vary from manufacturer to manufacturer. The proper stacked height and clearances are required. K-MAC includes bearing adapters, spacers, and various top nuts but it is still the responsibility of the installer to ensure a correct and safe fitment. Basic instructions are included but professional installation is required. As with any race-derived component, additonal fabrication may be required.

This item fits the following BMWs:
-12/2014  F22 BMW  228i 228i xDrive M235i M235i xDrive
2012-12/2014  F30 BMW  320i 320i xDrive 328d 328d xDrive 328i 328i xDrive 335i 335i xDrive - Sedan
2013-12/2014  F31 BMW  328i xDrive 328d xDrive - Wagon
-12/2014  F34 BMW  328i xDrive GT, 335i xDrive GT - Gran Tourismo
2013-12/2014  F32 BMW  428i 428i xDrive 435i 435i xDrive - Coupe
2013-12/2014  F33 BMW  428i Convertible 428i xDrive Convertible 435i Convertible - Convertible
-12/2014  F36 BMW  428i Gran Coupe 428i xDrive Gran Coupe 435i Gran Coupe 435i xDrive Gran Coupe
Not for cars with Adaptive M Suspension option code S2VFA
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KMAC - Corporate Logo
T#:600206
Part#: 193926-3H
Special Order: No Guaranteed ETA
$ 320.00 USD
Free Shipping
$ 320.00 USD
Free Shipping
Nearly every car manufactured in the modern era carries a dark secret – fully-adjustable suspension has been all but eliminated in the name of cost-cutting and assembly-line efficiency. What this means for you is increased tire wear and more frequent replacement, as a “full alignment” consists only of rudimentary toe-angle adjustment. For over forty years, K-MAC has been hard at work developing a solution to this problem with patented innovations in camber/caster plates and bushing kits, allowing easy adjustment and a true “full four-wheel alignment” to be performed by any competent shop. These bushings make camber adjustments possible for the first time, and improve the ability to complete toe angle adjustments. When used in conjunction with the K-MAC Camber and Toe kit and Rear Adjustable Trailing Arms allows full adjustability of the 5 multi-link rear arms and positive location. Bolt-on installation – insertion/extraction tube included! Easily adjusted on the car with basic hand tools Unique failsafe locking hardware – set & forget! High quality elastomer compound resists binding Hardened & nickel-chrome plated centers for maximum bushing life 2x the load area of stock bushings Spiral grease grooves
Show More Show Less
Powerflex Black Series - Corporate Logo
T#:21308434
Part#: PFF5-1903-24BLK
Ships in 2 Business Days
$ 81.99 USD
Free Shipping on orders $49 and up
When comparing OEM (Original Equipment Manufacturer) front sway bar bushings to PowerFlex Black Series bushings, it's essential to consider that OEM bushings are typically designed for general use, durability, and comfort, while PowerFlex bushings are engineered with specific performance goals in mind. If you're looking to elevate your driving experience and achieve better performance and handling, aftermarket Front Sway Bar Bushings offer a range of advantages that OEM bushings may not provide. Reduced Body Roll Sharper Handling Enhanced Cornering Improved Steering Response Better Traction Enhanced Control OE / OEM Cross Reference Numbers: 31356792124
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