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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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 Sep 10, 2026
$ 1,345.00 USD
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$ 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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Rear Upper Spring Pad - Priced Each
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URO - Corporate Logo
T#:552370
Part#: 33531094754
In Stock
$ 39.99

This product was last offered at the strikethrough price on
06-03-2026

$ 35.99 USD
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$ 35.99 USD
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Sway Bar Bushing Bracket (Rear)
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URO - Corporate Logo
T#:37858397
Part#: 33556780707
In Stock
$ 21.99 USD
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$ 21.99 USD
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Rear sway bar crafted from durable stainless steel for superior strength and corrosion resistance, unlike OEM mild steel.

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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URO Strut Bellow Kit - E46 E60
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URO - Corporate Logo
T#:37757293
Part#: BME39FSBKIT
In Stock
$ 20.99 USD
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URO Strut Bellow Kit - E46 E60

URO Strut Bellow Kit - E46 E60 is designed to replace old, cracked, or torn strut bellows in your BMW, ensuring that your suspension components remain well-protected. This high-quality kit helps prevent moisture and debris from entering and damaging the shock absorbers, improving the overall longevity of the suspension system. The strut bellows are molded to OE dimensions and shape for a seamless fit, ensuring easy installation and maintaining the vehicle's original appearance.

  • Replaces cracked or torn strut bellows for improved suspension protection
  • Prevents moisture and debris from damaging shock absorbers
  • Molded to OE dimensions for easy installation and original appearance
  • Helps maintain suspension performance and durability
  • Comes with a 24-month unlimited mileage warranty
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URO Front Suspension Refresh Kit - BMW E46
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URO - Corporate Logo
T#:349590
Part#: E46-8PCKIT
In Stock
$ 299.99 USD
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Revive the suspension on your E46 and get your car back on the road
Shock Mount Plate
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URO - Corporate Logo
T#:639326
Part#: 33526762325
In Stock
$ 5.99 USD
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Rear spring strut cupped washer e36 e46 e85 and more

BMW E46 Z4 Rear Lower Spring Pad - Priced Each
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URO - Corporate Logo
T#:391286
Part#: 33531094518
In Stock
$ 8.85 USD
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Replacement spring isolator for the rear spring

Trailing Arm Ball Joint - Priced Each
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URO - Corporate Logo
T#:372965
Part#: 33321138722
In Stock
$ 13.99 USD
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Located in the upper part of the rear trailing arm
Front Upper Spring Pad - Priced Each
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URO - Corporate Logo
T#:552385
Part#: 31331091233
In Stock
$ 13.99

This product was last offered at the strikethrough price on
05-01-2026

$ 11.99 USD
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$ 11.99 USD
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Should be replaced with each new shock
URO Rear Control Arm Bushing - E36, E46, E83, Z4
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URO - Corporate Logo
T#:592410
Part#: 33321092247
In Stock
$ 9.16 USD
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Upper control arm to subframe bushing


Rubber Boot
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URO - Corporate Logo
T#:597403
Part#: 31331093344
In Stock
$ 22.99

This product was last offered at the strikethrough price on
07-07-2026

$ 18.99 USD
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$ 18.99 USD
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Rear Spring Pad - 5mm - E30 E36 E46 X3 Z3 Z4
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URO - Corporate Logo
T#:5345
Part#: 33531136385
In Stock
$ 7.99 USD
Free Shipping on orders $49 and up
$ 7.99 USD
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This is the rear spring pad it can be used as an upper spring pad on some cars and a lower spring pad on others.. It is a good idea to replace spring pads while replacing shocks or springs. Sold Individually.

This item fits the following BMWs:
Lower Spring Pad
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe

Upper Spring Pad
1992-1998 E36 BMW 318i 318is 318ti 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
2004-2010 E83 BMW X3 2.5i X3 3.0i X3 3.0si
2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe
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URO Parts Subframe Mount - Rear Position
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URO - Corporate Logo
T#:27705446
Part#: 33312283419
Ships in 1 Business Day
$ 80.99 USD
Free Shipping on orders $49 and up

The subframe is integral to supporting and stabilizing crucial components such as control arms, engines, and transmissions. Bushings located at the junctions between the subframe and the vehicle's body play a vital role. These bushings act to dampen vibrations, ensuring a smoother ride by preventing excessive vibrations from reaching the cabin. They also contribute significantly to maintaining the subframe's stability, thereby keeping all components securely in position.

If you notice increased cabin vibrations or hear unusual sounds like clunks or knocks when driving over bumps, worn-out subframe bushings could be the issue. Replacing them with new bushings not only reduces vibrations but also improves overall stability and performance. This upgrade provides a secure mounting point for critical components like lower control arms, engines, and transmissions, enhancing your vehicle's ride quality and functionality.

URO Parts offers more than 8,000 high-quality spare parts, many of which are specifically designed to replace factory BMW components. Their business was founded on the premise of producing parts that adhere to the highest standards of precision, materials, and workmanship. Each part is closely evaluated by a team of industry professionals to determine how to offer the best blend of durability, function, and price. If you're looking for quality replacement components at a reasonable price, look no further than URO Parts.

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