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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Rear Shock Mount - 12 Mm - E30, E36, E46, Z3, Z4
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Powerflex - Corporate Logo
T#:53997757
Part#: PFR5-5630-12H
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$ 137.99 USD
$ 137.99 USD
Deflective, degraded factory rubber rear top mounts cause unpredictable dynamic toe and camber shifts, compromising rear-end stability when loading up the chassis mid-corner.
BMW E46 M3 Rear Sway Bar Bushing - 21.5 Mm
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Powerflex - Corporate Logo
T#:54281608
Part#: PFR5-4609-21.5H
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New Item
$ 57.99 USD
$ 57.99 USD
In high-performance stage and track environments, chassis deflection is the enemy of precision. The Powerflex Heritage Collection is engineered specifically for enthusiasts and restorers who demand modern, track-level suspension dynamics without compromising the classic aesthetic of a vintage or modern-classic cockpit.
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Whiteline Rear sway bar bushing - 20mm - E34, E36, E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Whiteline - Corporate Logo
T#:54388458
Part#: W22801
In Stock at Vendor
New Item
$ 28.99 USD
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Engineered to optimize rear roll stiffness and eliminate the dynamic compliance of aging factory components

Whiteline Lower Inner Rear Front Control Arm Bushing - E9x, E46, Z4 ...
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Whiteline - Corporate Logo
T#:54388459
Part#: W52605
Ships in 4 Business Days
New Item
$ 66.99

This product was last offered at the strikethrough price on
07-06-2026

$ 61.99 USD
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$ 61.99 USD
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Deflection at the front lower control arm rear pivot drastically alters dynamic toe and caster alignment under high-load braking and cornering

Rear Upper Shock Mount Installation Hardware Kit
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Genuine BMW - Corporate Logo
T#:55281726
Part#: 3362XX33KT
Ships in 5 Business Days
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$ 24.20 USD
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This kit combines the Genuine BMW rear upper shock mount spacer plate and the factory shock-mount-to-body flat gasket into one convenient package.
ECS Adjustable Front Sway Bar End Links (175-235mm)
Please measure before purchasing. For lowered or custom applications. Will not fit fact...
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ECS - Corporate Logo
T#:55497402
Part#: 059085LA01
In Stock
New Item
$ 189.99 USD
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$ 189.99 USD
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Upgrade your BMW's suspension with ECS Tuning Adjustable Sway Bar End Links, designed to provide up to 60mm (2.36") of adjustability. These end links allow you to eliminate sway bar preload or fine-tune it for specific racing needs and corner balancing. When installed, they improve drivetrain clearance and enhance sway bar responsiveness by reducing deflection, ensuring superior handling. Perfect for lowered vehicles using springs, coilovers, or air-ride suspension systems, these adjustable sway bar end links allow you to remove unwanted preload caused by changes in the center-to-center distance between sway bar mounting points. By adjusting the end links to a neutral position, you eliminate sway bar preload, enhancing suspension performance in various driving conditions.

The main body of the ECS Sway Bar End Links is crafted from strong, lightweight 6061-T6 billet aluminum and anodized red for superior corrosion resistance. Featuring left- and right-hand threaded center sections and machined hex wrench fittings, these end links allow for quick and easy on-the-car adjustments. Zinc-plated hardware ensures secure and lasting adjustments, while the heavy-duty ball joint ends come with weather-resistant rubber boots and stainless steel wire retainers, providing superior protection against salt, rain, and ozone for extended durability. Each kit also includes zinc-plated Nyloc nuts and hardened steel washers for secure installation and improved contact surface on the sway bar.

These end links are designed, engineered, and rigorously tested by ECS Tuning to ensure the highest quality. Whether you have a lowered or stock suspension, these adjustable sway bar end links are the perfect upgrade, offering a high-quality, heavy-duty replacement that fits your specific needs.

Features:

Range of Adjustment: 175mm (6.89") to 235mm (9.25") 6061-T6 Billet Aluminum Construction: Red anodized for superior corrosion resistance Zinc-Plated Hardware: Provides durability and superior corrosion protection Right and Left-Hand Threaded Center Sections: Quick and simple on-the-car adjustments Heavy-Duty Ball Joints (M10x1.5): Weather-resistant rubber boots and stainless steel wire retainers for long-lasting durability NOTE: If you've modified your vehicle's suspension with aftermarket struts or coilovers, the mounting location for the sway bar end link may have moved. To confirm fitment with our adjustable end links, please measure the distance between the sway bar and the mounting location on the strut body with the vehicle at ride height and confirm that it is within the 175 - 235mm range of adjustment.

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CTA Tools Go-Thru Deep Socket - 19mm
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CTA Tools - Corporate Logo
T#:48573714
Part#: 7513
Ships on Jul 23, 2026
New Item
$ 10.99 USD
Free Shipping on orders $49 and up
Why a strut nut socket? To secure shocks and struts to their mounts, the retaining nut must be torqued to its proper specification using a torque wrench. Strut nut sockets allow for the use of a 21mm wrench to hold the damper shaft allowing you to achieve proper torque. An improper torque value may result in premature mount failure - or worse.
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