BMW Spring & Shock Packages (BMW Performance and More) for BMW Z Series E85/6 (2003-2008)

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These suspension packages consist of H&R Springs combined with Bilstein Sport shocks and struts. This combination works exceptionally well on street-driven cars when coil overs are not available or not desired. These springs and shocks will lower the ride height, firm up the suspension, decrease bodyroll, and provide better handling. There's almost no downside save for a slightly firmer ride.

A shock/spring package is a direct replacement for the existing shocks, struts, and springs in your car. Unlike coil overs, there are no adjustments to be made or complicated mechanisms to use and the parts do not require special bushings and mounts. Our suspension packages install with the same original mounts as your stock shocks and springs (new parts are generally recommended of course). For a simple, inexpensive, and hassle-free suspension upgrade, a shock/spring package is impossible to beat. Bilstein shocks and H&R springs each carry a limited lifetime warranty.

For more information on packages versus coil overs, click to our guide.
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E85 Z4 2.5/3.0/3.0i/3.0si H&R/Bilstein Sport Suspension Package ...
For E85 Roadster Models Only
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:339103
Part#: TMS21514
Ships on Oct 12, 2026
Starting at $ 1,189.99 USD
Free Shipping
Starting at $ 1,189.99 USD
Free Shipping
Set your Z4 up for the corners with this shock/spring upgrade package. The Z4 can be a fun car but you can easily bring the handling up a notch with this package. By lowering the ride height and using a stiffer spring it can transform the behavior of the car in the corners. There will be less bodyroll and better balance, allowing you to carry more speed through the twisty sections. And there is almost no downside thanks to the ride attributes of this suspension. H&R Sport springs lower the ride height by up to 1.5" in front and 1.25" in the back and stiffens the spring rate. Both combine to lower the car's center of gravity and reduce the amount of bodyroll in corners. The springs are progressive rate so their initial stiffness is actually very compliant and it becomes stiffer as the spring is compressed. This is great for street cars that see bumps and potholes where suspension compliance is key. Overall, they are about 30% stiffer than the stock original springs. We use Bilstein Sport shocks as the dampers and they feature Bilstein's patented and innovative valving system. With this system, small bumps and impacts are absorbed as they should be. But the shocks stiffen for cornering and other suspension motions. It's the best of both worlds as the shock self-adjusts based on suspension motion. These fit with the stock strut and shock mounts, making for an easy and clean install. Parts list: 1 set - H&R Sport Springs (50421) 1 - Bilstein Left Front Sport strut (35-124115) 1 - Bilstein Right Front Sport strut (35-124122) 1 pair - Bilstein Rear Sport Shocks (24-104937) This item fits the following BMWs: 2003-2008 E85 Roadster BMW Z4 2.5i Z4 3.0i Z4 3.0si
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