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
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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Revshift Rear Shock Mount Kit - 80A - BMW E30 E36 E46 Z3
For shocks with a standard 10mm pin diameter
Revshift - Corporate Logo
T#:1105924
Part#: RSM-E6-10MM
Ships on Aug 10, 2026
$ 99.99 USD
Free Shipping
$ 99.99 USD
Free Shipping
Revshift rear shock mounts are CNC machined from 6061 billet aluminum and hard anodized black for protection. They are fitted with our highest quality 80A polyurethane bushings and chromoly sleeves. The class 10.9 hardware is zinc plated for corrosion resistance. These rear shock mounts can be rebuilt with one of our refresh kits sold separately. Fitment: BMW E30, E36, E46, Z3, and Z4. All OEM and aftermarket rear shocks with 10mm threads.
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Revshift Rear Shock Mount Kit - 80A - BMW E30 E36 E46 Z3
For shocks with a larger 12mm pin diameter
Revshift - Corporate Logo
T#:1105925
Part#: RSM-E6-12MM
Ships in 3 Business Days
$ 99.99 USD
Free Shipping
$ 99.99 USD
Free Shipping
Revshift rear shock mounts are CNC machined from 6061 billet aluminum and hard anodized black for protection. They are fitted with our highest quality 80A polyurethane bushings and chromoly sleeves. The class 10.9 hardware is zinc plated for corrosion resistance. These rear shock mounts can be rebuilt with one of our refresh kits sold separately. Fitment: BMW E30, E36, E46, Z3, and Z4. All OEM and aftermarket rear shocks with 12mm threads.
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Packaged by Turner - Corporate Logo
T#:5416757
Part#: 33521092362TMSKT
Ships on Oct 2, 2026
Sale - Save 11% $ 115.99

This product was last offered at the strikethrough price on
05-03-2026

$ 102.68 USD
Free Shipping
Sale - Save 11%
$ 115.99

This product was last offered at the strikethrough price on
05-03-2026

$ 102.68 USD
Free Shipping
Complete rear upper shock mounting kit includes everything you need to replace old, hardened mounts with new heavy duty replacements. Body seals, hardware, and reinforcement plates are included. Kit includes: Heavy-duty, German-made Lemfoerder rear shock mounts from the E46 M3 Elring shock mount gaskets Heavy-duty rear shock mount reinforcement plates Locking nuts Select your vehicle for additional fitment information. **Note** Upper damper nuts vary in size from shock to shock. If you wish to replace them please measure your damper and source accordingly.
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Revshift - Corporate Logo
T#:1105904
Part#: PSB-E46M
Ships in 8 Business Days
$ 189.99 USD
Free Shipping
$ 189.99 USD
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Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Packaged by Turner - Corporate Logo
T#:638972
Part#: 31336779613KT8
Ships on Oct 2, 2026
Sale - Save 2% $ 285.86

This product was last offered at the strikethrough price on
05-03-2026

$ 280.69 USD
Free Shipping
Sale - Save 2%
$ 285.86

This product was last offered at the strikethrough price on
05-03-2026

$ 280.69 USD
Free Shipping
This kit is contains all new strut and shock mounts and hardware needed when installing a aftermarket suspension on your vehicle.