QA1 GM Pro Front Coil-Over System - Double Adj. - 10in x 650lbs/in - Flat Large - Aluminum

QA1 GM Pro Coil Systems offer fully adjustable ride height and valving control via a fully threaded body. They feature American-made, lightweight high-travel springs with fewer coils and smaller wire diameter for increased travel and faster reactions, reducing unsprung weight. Multiple spring rate options support applications from street to hardcore racing. These lightweight billet aluminum coil-over shocks are easy to bolt-in, 100% Dyno Tested and Serialized, and serviceable/rebuildable by QA1 Authorized Service Centers. Made in the USA. Ideal for drag racing, street performance, autocross, road racing, and street rod applications. Sold in Pairs.