BMW Sway Bar Kits for BMW Z4 M Roadster S54 (2003-2008)

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The next step in tuning your car's handling - after shocks/springs and camber plates - should be a set of swaybars. Using larger front and rear sway bars will give your car better/quicker turn-in and less bodyroll in corners. These bars replace the existing sway bars on the car for a clean and simple upgrade with very little downside. Sway bars should be matched with your springs/shocks to maintain a proper handling balance. In some cases only a front or rear bar is needed to positively change the balance and make the car more neutral. We sell sway bar kits from H&R, Racing Dynamics, OE BMW upgrades, and even some of our own designs. Swaybars are sold with new bushings. New links and other hardware are strongly recommended.

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Genuine BMW - Corporate Logo
T#:61448
Part#: 33556780707
Ships in 1 day
Sale - Save 5% $ 35.23

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 33.47 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 35.23

This product was last offered at the strikethrough price on
06-25-2026

$ 33.47 USD
Free Shipping on orders $49 and up

This rear sway bar holds the sway bar bushing to the rear frame of your vehicle


Genuine BMW Stabilizer Support
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E53 48IS,E46,E53 X5,E82,E83 X3,E85 Z4,E86 Z4,E90,E92,E93
 

 

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Powerflex - Corporate Logo
T#:362728
Part#: PFR5-4609-21.5X2
In Stock
$ 57.99 USD
Free Shipping
$ 57.99 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. 

NOTE: For use with factory 21.5mm sway bar only

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Powerflex - Corporate Logo
T#:362718
Part#: PFF5-4602-27X2
In Stock
$ 70.99 USD
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$ 70.99 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. 

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Genuine BMW - Corporate Logo
T#:13525
Part#: 33552283743
In Stock
Sale - Save 5% $ 39.25

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 37.29 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 39.25

This product was last offered at the strikethrough price on
06-25-2026

$ 37.29 USD
Free Shipping on orders $49 and up
GENUINE BMW STABILIZER LINK:333535.--

This item fits the following BMWs:
BMW Z Series - Z4 sDrive28i, Z4 sDrive30i, Z4 sDrive35i, Z4 sDrive35is

--. We also stock this part as 33552282182

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Genuine BMW - Corporate Logo
T#:15525
Part#: 31352229711
In Stock
Sale - Save 9% $ 65.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 59.99 USD
Limited Qty Sale
Free Shipping
Sale - Save 9%
$ 65.99

This product was last offered at the strikethrough price on
06-15-2026

$ 59.99 USD
Limited Qty Sale
Free Shipping


Genuine BMW Stabilizer Rubber Mounting - D=21,5Mm
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4

Genuine BMW - Corporate Logo
T#:12452
Part#: 31356780847
Ships in 1 day
3% off MSRP $ 61.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 59.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 61.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 59.99 USD
Free Shipping on orders $49 and up
OEM BMW FRONT SWING SUPPORT

We also sell a lower cost aftermarket E46 sway bar link
 
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Genuine BMW - Corporate Logo
T#:20802
Part#: 31351094552
Ships in 1 day
$ 37.59 USD
Free Shipping on orders $49 and up
Genuine BMW STABILIZER SUPPORT 31351094552
Genuine BMW - Corporate Logo
T#:13492
Part#: 33326760668
In Stock
$ 2.99 USD
Free Shipping on orders $49 and up
GENUINE BMW SELF-LOCKING COLLAR NUT:339500

Genuine BMW - Corporate Logo
T#:20847
Part#: 33506779734
In Stock
1% off MSRP $ 11.76

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 11.65 USD
Free Shipping on orders $49 and up
1% off MSRP
$ 11.76

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 11.65 USD
Free Shipping on orders $49 and up

Replacement steel sway bar bushing bracket (Genuine BMW). This bracket is mostly used on the rear sway bar but also on the front of some cars.

FRONT sway bar bracket applications -
1982-1988 E28 BMW 528e 533i 535i
1983-1989 E24 BMW 633CSi 635CSi

REAR sway bar bracket applications -
1992-1999 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1989-1995 E34 BMW 525i 530i 535i 540i M5
1988-1994 E32 BMW 735i 735iL 740i 740iL 750iL
1995-2003 E38 BMW 740i 740iL 750iL
1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Coupe M Roadster
2002-2008 E85 E86 BMW Z4 2.5 Z4 3.0 Z4 3.0i Z4 3.0si

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Powerflex - Corporate Logo
T#:54281608
Part#: PFR5-4609-21.5H
Back Ordered
New Item
$ 57.99 USD
$ 57.99 USD
In high-performance stage and track environments, chassis deflection is the enemy of precision. The Powerflex Heritage Collection is engineered specifically for enthusiasts and restorers who demand modern, track-level suspension dynamics without compromising the classic aesthetic of a vintage or modern-classic cockpit.
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Powerflex - Corporate Logo
T#:34315145
Part#: PFF5-4602-25H
Ships in 1 Business Day
$ 70.99 USD
$ 70.99 USD

The BMW Z4 / E60 / E61 / E39 Front Sway Bar Bushings (25mm) are essential components designed to enhance the suspension performance of various BMW models, including the Z4, E60, E61, and E39. These bushings are critical for connecting the front sway bar to the chassis, helping to improve handling and stability during driving.

Key Features:

  1. Specifically for 25mm Sway Bars:

    • These bushings are designed for vehicles equipped with a 25mm front sway bar, ensuring a perfect fit for optimal performance and effective control of body roll.
  2. Functionality:

    • The sway bar bushings serve to connect the sway bar to the vehicle's chassis, allowing it to effectively minimize body roll when cornering. This results in improved stability and handling, enhancing the overall driving experience.
  3. Material Options:

    • Available in rubber and polyurethane:
      • Rubber bushings provide excellent noise dampening and a comfortable ride but may wear out more quickly under heavy stress.
      • Polyurethane bushings are known for their durability and performance benefits, offering reduced flex and improved handling, making them a favored choice for performance-oriented drivers.
  4. Improved Handling Characteristics:

    • Replacing worn or degraded bushings with new ones can lead to noticeable improvements in the vehicle's handling dynamics, resulting in more responsive steering and enhanced control during spirited driving.
  5. Wide Compatibility:

    • These bushings are designed to fit a variety of BMW models, including the Z4, E60, E61, and E39, making them an excellent choice for owners looking to maintain or enhance their vehicle’s performance.
  6. Installation:

    • The installation process typically involves detaching the sway bar from the suspension system. While experienced DIY enthusiasts may tackle this project, professional installation is often recommended to ensure proper alignment and performance.

Benefits of Replacement or Upgrade:

  • Enhanced Cornering Stability: New bushings significantly improve the sway bar's effectiveness, reducing body roll and enhancing cornering stability.
  • Increased Steering Precision: Fresh bushings provide better feedback from the suspension system, resulting in a more connected driving experience.
  • Long-lasting Performance: Upgrading to polyurethane options can increase the lifespan of the sway bar components, minimizing the frequency of replacements.

In summary, the BMW Z4 / E60 / E61 / E39 Front Sway Bar Bushings (25mm) are critical for maintaining and enhancing the handling and performance of these BMW models. Whether you are replacing worn-out bushings or upgrading to polyurethane for improved durability and responsiveness, ensuring these components are in top condition is vital for enjoying the exceptional driving dynamics associated with BMW vehicles.

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