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The QA1 GM Pro Front MOD Series coil‑over combines a double‑adjustable MOD shock with a 10" large tapered flat spring rated at 650 lb/in for front GM applications, aimed at delivering controlled wheelrate and damping across varying conditions. MOD Series QuickTune dry valve packs allow quick on‑car revalving without exposing the oil path. The kit includes 4‑way high/low speed adjustments, remote or piggyback canister options, is dyno tested and serialized, and lists 9.63" compressed and 14.5" extended heights.
QA1 GM Pro Front Coil-Over System - MOD Series - 10in x 650lbs/in - Flat Large - Aluminum
