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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Bilstein - Corporate Logo
T#:1702
Part#: 19101X
In Stock
$ 22.03 USD
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Bilstein Coil Over wrench set for some PSS, PSS9 and PSS10 kits. Consists of a Large wrench and a Small wrench for adjusting the spring perch (76.25mm) and lock ring (75.75mm) on coil overs that require the rectangular notch style head (not round pin style adjuster). Can also be used with other coil over kits (H&R, Moton, JRZ, etc).
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BC Racing - Corporate Logo
T#:555864
Part#: DMP-EXT
In Stock
$ 39.99 USD
Free Shipping on orders $49 and up
The rear damping adjuster on coilovers is usually hidden under a bunch of hard to reach interior panels requiring you to remove carpet, panels and sometimes even the rear seat back in order to adjust the dampening on your BC rear coilovers. The BC Racing rear extender adjuster allow you to make these adjustments without removing the rear interior. Simple make two small holes in the interior above the adjuster and the extension can be passed through the interior panels. Now the adjustments can be performed from above.
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Bilstein - Corporate Logo
T#:344190
Part#: 46-000033
In Stock
$ 1,119.00 USD
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$ 1,119.00 USD
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Bilstein has teamed up with Eibach to offer matched shock and spring packages. These Eibach springs are mated to a special set of Bilstein shocks to deliver a sporty and taut ride with as little impact on ride comfort as possible.

The Pro Kit uses an Eibach Pro Kit spring with Bilstein's Sport shocks and struts. Instead of taking parts from different manufacturers, Bilstein has tested the performance of the Eibach spring and tailored their shocks to be a true match for the new spring rate and ride height. This is known as a matched shock and spring and very few tuning companies take these extra steps. Eibach springs tend to be softer overall than most other aftermarket springs, which ensures the ride stays close to a stock comfort while still giving you a lowered stance and improved handling. 

Bilstein B12 Features: 

  • Precise response and excellent driving performance
  • Springs and shocks road tested and fine-tuned to complement one another
  • Bilstein Monotube/Inverted gas pressure technology
  • TUV certified
  • Made In Germany
  • Average Lowering of 25 to 40mm

Most cars don't need coil overs to improve their handling and bodyroll. For most drivers, simply replacing the shocks and springs with performance versions will meet their goals. If your shocks need replacing, and you felt the handling could be improved a little bit, this is an excellent performance suspension for you.

This item fits the following BMWs:
2006-2008 E85/E86 BMW Z4 M Coupe, M Roadster

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Bilstein - Corporate Logo
T#:2590
Part#: BE3-E168-H0
In Stock
$ 139.00 USD
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$ 139.00 USD
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Position: Rear, left or right
Setting: Performance, for stock suspensions

Rear Bilstein B6 Performance shock. Performance shocks are for cars with the standard, factory suspension. They are typically about 20% firmer than the original shock, improving body roll, brake dive, and overall handling. Includes top nut, stock dust boot is re-used. Price is per shock.

This Bilstein B6 Performance rear shock fits the following BMWs:
2004-2008 E85 E86 Z4 M Coupe, Z4 M Roadster
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Bilstein - Corporate Logo
T#:2593
Part#: VE3-E166-H0
Ships on Oct 29, 2026
$ 319.00 USD
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$ 319.00 USD
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Position: Front left
Setting: Performance, for stock suspensions

Front Bilstein B6 Performance shock. Performance shocks are for cars with the standard, factory suspension. They are typically about 20% firmer than the original shock, improving body roll, brake dive, and overall handling. Includes top nut. Price is per shock.

This Bilstein B6 Performance Front shock fits the following BMWs:
2004-2008 E85 E86 Z4 M Coupe, Z4 M Roadster
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Bilstein - Corporate Logo
T#:2594
Part#: VE3-E167-H0
In Stock
$ 319.00 USD
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$ 319.00 USD
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Position: Front right
Setting: Performance, for stock suspensions

Front Bilstein B6 Performance shock. Performance shocks are for cars with the standard, factory suspension. They are typically about 20% firmer than the original shock, improving body roll, brake dive, and overall handling. Includes top nut. Price is per shock.

This Bilstein B6 Performance Front shock fits the following BMWs:
2004-2008 E85 E86 Z4 M Coupe, Z4 M Roadster
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Bilstein - Corporate Logo
T#:1584
Part#: MZ4HDSET
Ships on Oct 29, 2026
$ 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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BC Racing - Corporate Logo
T#:555847
Part#: I-22-BR
Back Ordered
$ 1,195.00 USD
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$ 1,195.00 USD
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Looking for coilovers that will provide reliability on street driven vehicles but are also capable of feeding your weekend track demon's desire for performance? BC Racing's BR Series coilover kit may be just the thing for you.

BR Series coilovers are the most popular and versatile option offered by BC racing, offering features such as 30-level dampening adjustment (simultaneous compression and rebound control), linear springs where possible, and a minimum of 2 inches ride height drop. To ensure performance, comfort, and quality, all BR Series kits are Dyno tested during the design stage to determine the best valving and spring rates, then installed and tested for a minimum of 6 months. This kit features mounts and brackets that are fully compatible with all stock mounting points and components.

The upper shock/strut mounts are all constructed of 6061-T6 Aluminum for strength and weight savings. BC Racing design 1 of 3 types of upper mounts for each vehicle: Caster/Camber Plates (+/- 3* camber), Camber Plates (+/- 3* camber), and Rubber Mount Plates (NVH reduction). The included mount option for this kit is shown in the kit specs and features below.

Lower shock mounts are powder coated for corrosion protection and constructed of either 6061-T6 aluminum that has been milled from a single piece (fork or bolt eye mount) or of STKM13C steel with all brackets welded robotically.

The included springs come in one of 3 styles: linear, S-barrel, and V-barrel. Linear springs are used in most applications unless limited by the OE design that does not allow the use of linear springs. All spring options are made from SAE9254 steel and have a zinc coating applied under the powder coating for increased spring corrosion protection and long term reliability.

All shock bodies used in the BR Series coilovers use a 53mm shock body (unless noted otherwise) for added strength, performance, and increased fluid capacity. All shocks are then powder coated black chrome for clean styling and corrosion protection.

Specs and Features:

  • 6k Front & 8k Rear Spring Rate
  • Linear front & S-Barrel rear springs
  • Valved specifically to spring style and rate
  • Camber Plate Front Mounts
  • Aluminum and Rubber Rear Mounts
  • Black Powder Coated Components
  • All OE style brackets and mounting for perfect fit
  • 30 Levels of Simultaneous Compression and Rebound Dampening
  • 2 inch minimum and 3+ Inches of total potential drop
  • Great for Track, Street, and any other conditions
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BC Racing - Corporate Logo
T#:568095
Part#: I-22E-BR
Ships on Oct 20, 2026
$ 1,345.00 USD
Free Shipping
$ 1,345.00 USD
Free Shipping
Looking for coilovers that will provide reliability on street driven vehicles but are also capable of feeding your weekend track demon's desire for performance? BC Racing's BR Series coilover kit may be just the thing for you. BR Series coilovers are the most popular and versatile option offered by BC racing, offering features such as 30-level dampening adjustment (simultaneous compression and rebound control), linear springs where possible, and a minimum of 2 inches ride height drop, up to 5". To ensure performance, comfort, and quality, all BR Series kits are Dyno tested during the design stage to determine the best valving and spring rates, then installed and tested for a minimum of 6 months. This kit features mounts and brackets that are fully compatible with all stock mounting points and components. The upper shock/strut mounts are all constructed of 6061-T6 Aluminum for strength and weight savings. BC Racing design 1 of 3 types of upper mounts for each vehicle: Caster/Camber Plates (+/- 3* camber), Camber Plates (+/- 3* camber), and Rubber Mount Plates (NVH reduction). The included mount option for this kit is shown in the kit specs and features below. Lower shock mounts are powder coated for corrosion protection and constructed of either 6061-T6 aluminum that has been milled from a single piece (fork or bolt eye mount) or of STKM13C steel with all brackets welded robotically. The included springs come in one of 3 styles: linear, S-barrel, and V-barrel. Linear springs are used in most applications unless limited by the OE design that does not allow the use of linear springs. All spring options are made from SAE9254 steel and have a zinc coating applied under the powder coating for increased spring corrosion protection and long term reliability. All shock bodies used in the BR Series coilovers use a 53mm shock body (unless noted otherwise) for added strength, performance, and increased fluid capacity. All shocks are then powder coated black chrome for clean styling and corrosion protection. Specs and Features: 6k Front & 12k Rear Spring Rate V-Barrel front & Linear rear springs Valved specifically to spring style and rate Camber Plate Front Mounts Aluminum and Rubber Front Mounts Black Powder Coated Components All OE style brackets and mounting for perfect fit 30 Levels of Simultaneous Compression and Rebound Dampening Extreme Drop version allows additional 1-1.5" lowering over the standard 2-4" lowering from traditional BR suspension kits Shocks are 1" shorter in length and springs are specifically selected for greater lowering capabilities Great for Track, Street, and any other conditions
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