ISC Suspension Track / Race Coilover Kit Fits 05-13 BMW 1 Series

Designed to enhance driving performance by reducing body roll and allowing for effective lowering of the vehicle. Features 32-way damping adjustability (rebound and compression adjusted in unison). Basic upper top mount made from T6061 anodized aluminum with an isolated rubber bushing. Utilizes a single cylinder mono-tube damper with high-pressure nitrogen, and a larger cylinder and piston design for increased driving stability. Threaded shaft is powder-coated and salt-spray coated. ISC springs are made from SAE9254 steel, dyno tested over 500,000 times (less than 5% deformation), with customizable spring rates available. Offers full-length height adjustability of up to 3 inches on most applications, with separate preload and ride height adjustments for lowering without sacrificing ride quality.