Riaction GT1 Coilovers for 2003-2008 BMW Z4 (E85)

The Riaction GT1 Coilovers for the 2003-2008 BMW Z4 E85 deliver a premium, adjustable suspension upgrade built for drivers who want more from their Z4 E85 than the factory setup can offer. These BMW Z4 coilovers are engineered to pair street comfort with canyon and track capability, giving you the stance, handling, and adjustability you”ve been chasing without compromising daily driveability. Whether you track your E85 Z4 on weekends or log daily miles, this E85 coilover kit dials in ride height and damping to match how you actually use the car.

Every GT1 set features a monotube damper with 32 levels of damping adjustment, so you can tune ride quality to match the road, the weather, or your driving mood. Full-length ride-height adjustment separates preload from ride height — meaning you can drop the Z4 E85 to the height you want while preserving spring travel and shock stroke. Riaction coilovers for the 2003-2008 BMW Z4 are fully rebuildable and backed by a 2-year warranty, making the GT1 a long-term suspension investment rather than a disposable upgrade.

GT1 Series Technology

Features

Specifications

Vehicle Fitment