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The QA1 GM Pro Front MOD Series coil‑over system matches a MOD double‑adjustable shock with an 10" tapered pigtail spring rated 650 lbs/in to deliver extensive tunability. The MOD design supports QuickTune dry modular valve packs for on‑car revalving without opening the shock, plus remote or piggyback canister mounting and indexable base eyelet for ideal placement. Compressed height 8.63", extended 12.63"; dyno tested, serialized and made in the USA.
QA1 GM Pro Front Coil-Over System - MOD Series - 10in x 650lbs/in - Pigtail - Aluminum
