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
Free Shipping
$ 1,195.00 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. 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 9, 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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OEM Lemforder Front Control Arm - ZHP/Sport Upgrade - Left - E46, Z4 ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Lemforder - Corporate Logo
T#:12485
Part#: 31122282121-LEM
In Stock
$ 232.99 USD
Free Shipping
$ 232.99 USD
Free Shipping

Lemforder
This control arm upgrade was used on the high-performance 330i ZHP Performance Package and offered by BMW as a sport retrofit. These arms are identical dimensions as the regular arms so they are a direct replacement. But they have all metal ball joints instead of plastic or rubber. This means they last a lot longer and are much stronger. We used these in our Grand Am and World Challenge E46 racecars with excellent performance.

Control arms, and their integrated ball joints, are some of the most crucial components on a BMW suspension. The control arms literally control the wheel and suspension as they go through their range of motions. A faulty or worn control arm or ball joint is a very dangerous and potentially life-threatening problem so make sure they are inspected and replaced at regular intervals. For a street-driven car we advise yearly inspection and a full replacement every 3-4 years. For track-driven cars these should be inspected before every event and replaced every two years.

We also recommend replacing the bushings when changing the control arms. The bushings are mounted at the back of the control arm and located the arm to the frame rail on the car. The stock bushings are rubber and will wear out sooner than the control arms themselves. With the control arm off the car now is the perfect time to also replace the bushings.

Lemforder is the original equipment supplier to BMW for these control arms.

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci
2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

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Bav Auto Tools - Corporate Logo
T#:580410
Part#: B8800100
In Stock
Sale - Save 3% $ 222.99

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

$ 216.30 USD
Free Shipping
Sale - Save 3%
$ 222.99

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

$ 216.30 USD
Free Shipping

Remove and install the three bushings and ball joints that are pressed into the rear trailing arm. Use this one tool kit for on-vehicle or off-vehicle removal and replacement of the Rear Trailing Arm Bushing, Outer Upper Control Arm Bushing (ball joint) and Outer Lower Control Arm Bushing (ball joint). This tool is designed to work on E36 3-series (except E36 318ti), E46 3-series, E83 X3 and E85/E86 Z4 Coupe & Roadster.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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OEM Lemforder Front Control Arm - ZHP/Sport Upgrade - Right - E46, Z4...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Lemforder - Corporate Logo
T#:13327
Part#: 31122282122-LEM
In Stock
$ 287.99 USD
Free Shipping
$ 287.99 USD
Free Shipping

Lemforder
This control arm upgrade was used on the high-performance 330i ZHP Performance Package and offered by BMW as a sport retrofit. These arms are identical dimensions as the regular arms so they are a direct replacement. But they have all metal ball joints instead of plastic or rubber. This means they last a lot longer and are much stronger. We used these in our Grand Am and World Challenge E46 racecars with excellent performance.

Control arms, and their integrated ball joints, are some of the most crucial components on a BMW suspension. The control arms literally control the wheel and suspension as they go through their range of motions. A faulty or worn control arm or ball joint is a very dangerous and potentially life-threatening problem so make sure they are inspected and replaced at regular intervals. For a street-driven car we advise yearly inspection and a full replacement every 3-4 years. For track-driven cars these should be inspected before every event and replaced every two years.

We also recommend replacing the bushings when changing the control arms. The bushings are mounted at the back of the control arm and located the arm to the frame rail on the car. The stock bushings are rubber and will wear out sooner than the control arms themselves. With the control arm off the car now is the perfect time to also replace the bushings.

Lemforder is the original equipment supplier to BMW for these control arms.

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci
2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

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Bav Auto Trailing Arm Inner Bushing Tool - Master Set
Be sure to add some grease to the rods in this tool set during installation to prevent breakage.
Bav Auto Tools - Corporate Logo
T#:580442
Part#: B8800137
In Stock
Sale - Save 3% $ 293.99

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

$ 285.17 USD
Free Shipping
Sale - Save 3%
$ 293.99

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

$ 285.17 USD
Free Shipping
Remove and install the two rear inner trailing arm / lower control arm bushings that are in the subframe with one tool set without removing the trailing arms from the vehicle. This tool is designed to work with all trailing arm bushing designs on E82, E84, E90 ,E91, E92, E93 model cars. Replaces bushing part #'s 33326770829 and 33326763092.
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Bav Auto Tools - Corporate Logo
T#:580394
Part#: B8800081
In Stock
Sale - Save 5% $ 123.99

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

$ 117.79 USD
Free Shipping
Sale - Save 5%
$ 123.99

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

$ 117.79 USD
Free Shipping
Used to install or remove shock and strut nuts - no more using an impact gun!

Bav Auto Tools - Corporate Logo
T#:580360
Part#: B8800033
Ships on Sep 1, 2026
Sale - Save 10% $ 186.99

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

$ 168.29 USD
Free Shipping
Sale - Save 10%
$ 186.99

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

$ 168.29 USD
Free Shipping

Removes and installs control arm bushings while leaving the control arm on the car.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less