Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The QA1 MOD Series GM front coilover is a double‑adjustable front kit for GM applications that uses QuickTune dry modular valve packs for on‑car revalving without opening the shock. It pairs an aluminum shock with an 11" tapered pigtail spring rated 300 lbs/in and provides 4‑way high and low speed bleed adjustment. Compressed height is 10.13" with a 15" extended length; remote or piggyback canister mounting is available and units are dyno tested and serialized, made in the USA.
QA1 GM Pro Front Coil-Over System - MOD Series - 11in x 300lbs/in - Pigtail - Aluminum
