Riaction GT1 Coilovers for BMW E85 Z4 03-08

The Riaction GT1 Coilovers for the BMW Z4 are an excellent choice for those looking for performance on a budget.

These coilovers are 1-way adjustable, featuring monotube dampers with linear valving to give you a good balance of comfort and performance, and have 32 levels of dampening adjustment.

Height adjustment is done by the shock body, allowing you to retain full suspension travel while lowering your car 1-3 inches (model dependent).

These coilovers are designed to be used on the track while still giving you comfort on the street, are very customizable and upgradeable to 2-way adjustable. They can even be converted to digressive valving.

On models with Macpherson struts, they come with camber adjustable top mounts. Swift Spring upgrade is also an option on these.

These coilovers can be fully rebuilt and upgraded by Riaction in the USA, so you don’t have to ship your coilovers overseas to be serviced.

If your car has rear struts in a hard to reach place, extenders are an optional extra that will make adjusting easy. Just make sure to select them above when placing your order.

If you are looking for a budget performance coilover that will handle track use as well as street duty, the Riaction GT1s are a fantastic choice.