The QA1 GM Pro Front MOD Series coil‑over system combines a MOD Series double‑adjustable shock with a 10" large tapered flat spring rated 400 lbs/in for front suspension tuning. QuickTune modular valve packs enable fast revalving without opening the shock, while remote or piggyback canister mounting and 4‑way high/low speed bleed let you refine compression and rebound. Compressed height 8.63", extended 12.63", dyno tested and serialized.
QA1 GM Pro Front Coil-Over System - MOD Series - 10in x 400lbs/in - Flat Large - Aluminum