Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The QA1 MOD Series GM front coilover is a double‑adjustable front system for GM applications combining an aluminum stock‑mount shock with QuickTune dry modular valve packs for on‑car revalving. It includes a 10" large tapered flat spring rated 400 lbs/in and delivers 4‑way high and low speed bleed adjustment. Compressed height is 10.13" with a 15" extended length, and the kit supports remote canister mounting; dyno tested and serialized in the USA.
QA1 GM Pro Front Coil-Over System - MOD Series - 10in x 400lbs/in - Flat Large - Aluminum
