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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IRP - Individual Racing Parts - Corporate Logo
T#:401372
Part#: IRPCA-ST
In Stock
$ 233.99 USD
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$ 233.99 USD
Free Shipping

If you are looking for a wider range of camber adjustability in the rear of you car, the IRP Adjustable rear lower control arm is exactly what you need! Built to be much stronger than stock, these rear control arms feature inner monoball bushings and are built of steel, reducing the weight as well. These are perfect for a lowered car or for a track car that needs a greater level of rear adjustment.

Features:

  • Strong Steel Construction
  • Adjustable
  • Painted Yellow For Corrosion Protection
  • Weight Reduction
  • Monoball Inner Mount

This item fits the following BMWs:
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 M3
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

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IRP - Individual Racing Parts - Corporate Logo
T#:401369
Part#: IRPRTM-P
Ships on Aug 19, 2026
$ 110.00 USD
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$ 110.00 USD
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Looking to stiffen up your rear shock mount without going for a solid rear mount? The Polyurethane Rear Performance Strut Mount from IRP will give you the stiffer reinforcement without giving you the typical noise, vibration, and harshness that come with traditional performance strut mounts. The polyurethane also helps with preventing rear shock blowouts, a common problem for stock BMW rear mounts that are paired with stiffer than stock suspension. 

The bearing sleeve and poly bushing are built to work with all stock style shocks such as Bilstein and H&R coilover and suspension kits.

Fits the following BMW chassis:
E36 BMW All Submodels except for 318ti
E46 BMW All Submodels
E30 BMW All Submodels
E36 Z3 BMW All Submodels
E85/E86 Z4 BMW All Submodels

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IRP - Individual Racing Parts - Corporate Logo
T#:5282924
Part#: IRPRSMP-30
Ships in 1-2 days
$ 27.99 USD
Free Shipping on orders $49 and up
IRP (Individual Race Parts) is a performance aftermarket parts company that focuses on high quality and long term reliability. Rear shock mount reinforcement plates by IRP that fit a large number of E chassis 3 series cars between E30, E36, E46 and also the Z3 and Z4.
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SPL Parts - Corporate Logo
T#:825816
Part#: SPLRLLE46
In Stock
$ 404.00 USD
Free Shipping on orders $49 and up
These SPL parts adjustable rear camber arms replace OEM part number 33326770813 These rear camber arms allow for significantly greater camber adjustment over stock, a major benefit to lowered cars that need their camber readjusted to prevent tire wear and poor handling. These camber arms also provide increased stability and predictability versus the stock camber arms with rubber bushings. SPL Parts is a performance suspension manufacturer that designs and tests their products all in-house here in the USA. Additionally, all materials used are sourced from American suppliers to ensure consistently high quality products. These rear camber arms from SPL parts utilize gun drilled 6061-T6 Aluminum center links, clamps, and clevises, along with Blue Anodized Titanium socket head cap screws and a 360 degree rotating clamp system. This provides optimal strength, performance, durability, and adjustment simplicity. SPL's adjustment design makes it simple to lock in your alignment settings, requiring only a 3/16" allen key! Features custom 3 piece FK bearings and rod ends manufactured in Connecticut - these also utilize a teflon liner which promotes quiet operation, low friction, and smooth articulation while eliminating bushing deflection under load. The PTFE liner is chemically bonded to the inner diameter of the race. The liner is suited perfectly for track use, with operating temperatures ranging from -65 degrees Fahrenheit to 325 degrees. Technical Specifications: Lightweight Aluminum, Titanium, and Stainless steel construction Anodized Black for corrosion protection and durable finish Gundrilled center hex links for maximum weight savings Teflon lined FK Rod Ends Made in the USA Fits the following BMWs: 1999-2006 E46 BMW RWD Models
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Revshift - Corporate Logo
T#:27405529
Part#: SBRC-E46-95A
Ships in 9 Business Days
$ 249.99 USD
Free Shipping on orders $49 and up

Upgrade your E46's rear subframe with the Revshift Combo Kit, featuring 80A durometer polyurethane rear subframe bushings and a comprehensive weld-in reinforcement plate kit. Designed to address the notorious cracking and ripping of rear subframe mounting points over time, this kit provides a robust solution to prevent costly damage to your vehicle.

Key Features:

Complete Solution: Includes 95A durometer polyurethane rear subframe bushings and precision laser-cut 14-gauge steel reinforcement plates for comprehensive subframe reinforcement. Prevents Damage: Weld-in reinforcement plates protect against cracks and damage to the chassis, ensuring long-term durability and stability. Enhanced Handling: Revshift polyurethane rear subframe bushings replace OEM rubber bushings, stiffening mounting points to improve handling and performance. Durable Construction: Polyurethane bushings are designed to last and do not wear out like rubber OEM bushings, providing consistent performance over time. Proper Dampening: Polyurethane bushings properly dampen the rear subframe, enhancing overall vehicle stability and control. Benefits:

Improved handling capabilities Long-lasting durability compared to OEM rubber bushings Protection against bending or cracking of subframe mounts The comprehensive kit includes all necessary components for installation Upgrade your E46's rear subframe with the Revshift Combo Kit for superior handling, durability, and protection against chassis damage. Boost your driving experience with enhanced performance and stability.

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Revshift - Corporate Logo
T#:27405530
Part#: SBRC-E46-80A
Ships in 5 Business Days
$ 249.99 USD
Free Shipping on orders $49 and up

Upgrade your E46's rear subframe with the Revshift Combo Kit, featuring 80A durometer polyurethane rear subframe bushings and a comprehensive weld-in reinforcement plate kit. Designed to address the notorious cracking and ripping of rear subframe mounting points over time, this kit provides a robust solution to prevent costly damage to your vehicle.

Key Features:

Complete Solution: Includes 80A durometer polyurethane rear subframe bushings and precision laser-cut 14-gauge steel reinforcement plates for comprehensive subframe reinforcement. Prevents Damage: Weld-in reinforcement plates protect against cracks and damage to the chassis, ensuring long-term durability and stability. Enhanced Handling: Revshift polyurethane rear subframe bushings replace OEM rubber bushings, stiffening mounting points to improve handling and performance. Durable Construction: Polyurethane bushings are designed to last and do not wear out like rubber OEM bushings, providing consistent performance over time. Proper Dampening: Polyurethane bushings properly dampen the rear subframe, enhancing overall vehicle stability and control. Benefits:

Improved handling capabilities Long-lasting durability compared to OEM rubber bushings Protection against bending or cracking of subframe mounts The comprehensive kit includes all necessary components for installation Upgrade your E46's rear subframe with the Revshift Combo Kit for superior handling, durability, and protection against chassis damage. Boost your driving experience with enhanced performance and stability.

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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 7, 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 2 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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Revshift - Corporate Logo
T#:1105904
Part#: PSB-E46M
Ships in 7 Business Days
$ 189.99 USD
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$ 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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IRP - Individual Racing Parts - Corporate Logo
T#:401368
Part#: IRPRTM-B
Special Order: No Guaranteed ETA
$ 185.99 USD
Free Shipping
$ 185.99 USD
Free Shipping

Want the best performance option in shock tower mounts? IRP has created their pillow-ball rear shock mounts for just this need. These rear shock mounts are designed for use on the track and racing. This set of mounts will help your rear shocks perform the best they can in all conditions. The advantage to using a mount with spherical bearing is that it allows the shock to freely move off axis without side loading the shock shaft like rubber or polyurethane mounts do. Side loading a shock increases stiction and wear which decreases its efficiency. Because these are mounts without an isolator (rubber or polyurethane) to dampen road noise and vibrations we do not recommend them for street cars.

The bearing sleeve and poly bushing are built to work with all stock style shocks such as Bilstein and H&R coilover and suspension kits.

Fits the following BMW chassis:
E36 BMW All Submodels except for 318ti
E46 BMW All Submodels
E30 BMW All Submodels
E36 Z3 BMW All Submodels
E85/E86 Z4 BMW All Submodels

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Revshift - Corporate Logo
T#:27405528
Part#: SBRC-E46-70D
Ships in 7 Business Days
$ 249.99 USD
Free Shipping on orders $49 and up

Upgrade your E46's rear subframe with the Revshift Combo Kit, featuring 75D durometer polyurethane rear subframe bushings and a comprehensive weld-in reinforcement plate kit. Designed to address the notorious cracking and ripping of rear subframe mounting points over time, this kit provides a robust solution to prevent costly damage to your vehicle.

Key Features:

Complete Solution: Includes 95A durometer polyurethane rear subframe bushings and precision laser-cut 14-gauge steel reinforcement plates for comprehensive subframe reinforcement. Prevents Damage: Weld-in reinforcement plates protect against cracks and damage to the chassis, ensuring long-term durability and stability. Enhanced Handling: Revshift polyurethane rear subframe bushings replace OEM rubber bushings, stiffening mounting points to improve handling and performance. Durable Construction: Polyurethane bushings are designed to last and do not wear out like rubber OEM bushings, providing consistent performance over time. Proper Dampening: Polyurethane bushings properly dampen the rear subframe, enhancing overall vehicle stability and control. Benefits:

Improved handling capabilities Long-lasting durability compared to OEM rubber bushings Protection against bending or cracking of subframe mounts The comprehensive kit includes all necessary components for installation Upgrade your E46's rear subframe with the Revshift Combo Kit for superior handling, durability, and protection against chassis damage. Boost your driving experience with enhanced performance and stability.

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