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The QA1 GM Pro Front MOD Series coil‑over system pairs a MOD double‑adjustable shock with a 10" tapered pigtail spring rated 600 lbs/in for focused front damping. QuickTune dry modular valve packs enable on‑car revalving without exposing the oil path, and remote or piggyback canister options plus 4‑way bleed adjustments allow broad tuning. Compressed height 8.63" and extended 12.63"; each shock is dyno tested and serialized.
QA1 GM Pro Front Coil-Over System - MOD Series - 10in x 600lbs/in - Pigtail - Aluminum
