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The QA1 GM Pro Front MOD Series coil‑over system pairs a MOD double‑adjustable shock with an 11" tapered pigtail spring rated 250 lbs/in for front suspension tuning that favors compliance. QuickTune modular valve packs let you change valving without opening the shock, and remote or piggyback canister options with 4‑way bleed adjustment expand tuning range. Compressed height 8.63" and extended 12.63"; dyno tested and serialized.
QA1 GM Pro Front Coil-Over System - MOD Series - 11in x 250lbs/in - Pigtail - Aluminum
