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The QA1 MOD Series GM front coilover is a double‑adjustable front shock kit for GM applications that uses QuickTune dry modular valve packs for rapid revalving while the shock remains on the car. It includes a 10" tapered pigtail spring rated 600 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 options are available and the units are dyno tested and serialized in the USA.
QA1 GM Pro Front Coil-Over System - MOD Series - 10in x 600lbs/in - Pigtail - Aluminum
