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The QA1 MOD Series GM front coilover is a double‑adjustable coil‑over kit for GM front applications that combines an aluminum stock‑mount shock with QuickTune dry modular valve packs for on‑car revalving. It includes an 11" large tapered flat spring rated 300 lbs/in and offers 4‑way high and low speed bleed adjustment. Compressed height is 8.63" with a 12.63" extended length, and the system accepts remote canister mounting; units are dyno tested and serialized in the USA.
QA1 GM Pro Front Coil-Over System - MOD Series - 11in x 300lbs/in - Flat Large - Aluminum
