Ground Control Coilover Kits offer a custom ride height solution for your vehicle. Building on years of racing experience, Ground Control has adapted their spring kits for street use. Unlike other spring kits that offer only one set ride height when installed, the Ground Control system is designed to provide easy adjustment. Lift the corner(s) of your vehicle you wish to adjust and spin the adjustable spring seat up or down to raise or lower the vehicle.* The kit is compatible with both stock and aftermarket shocks.
This kit features Ground Control springs, manufactured by Eibach USA, with a lifetime warranty against spring rate change and sagging. The adjustable spring seat and threaded sleeve are made from high-strength 6061-T6 aluminum and anodized for durability and appearance. The adjusters use square cut threads that lock the adjustable spring seat in place under load. For added security, a setscrew in the adjustable spring seat can be used to secure adjustment.
The rear upper shock mounts are made of billet aluminum and replace the failure-prone stock pieces. The kit also includes four Ground Control bumpstops, designed and manufactured for GC and matched to your springs. The HYBRID Camber/Caster Plates allow for separately adjustable camber and caster by sliding the mounts without removing any components from the car. The plates feature two sets of bearings, a proprietary bearing manufactured for Ground Control in the USA, and an articulating needle bearing that supports the weight of the car.
The shocks and struts are specially designed by Ground Control and are not the standard off-the-shelf Koni struts for the E21. The front struts are adjustable and are shortened with special valving designed by Ground Control, while the rear shocks have a slightly more aggressive damping but remain streetable.
This kit includes labor for GC to shorten and powdercoat your struts with 50mm tubes as pictured. However, it is important to note that a ride height change lower than 2 inches can cause rear alignment problems. You must contact VAC for instructions on how to send strut cores. With a lifetime guarantee on all parts, the Ground Control Street Coilover Kit is the finest available, and every component is made by Ground Control or trusted partners.