QA1 MG501-10450A MOD Series Pro-Coil Double Adjustable Front Coilover Shock Kit with Remote Canister 450 lb/in Spring

The QA1 MG501-10450A is a MOD Series front Pro-Coil coilover shock kit featuring a double adjustable aluminum shock with remote canister and a 10-inch tapered pigtail spring rated at 450 lb/in. Designed for high-performance street, pro-touring, and drag race applications, this kit delivers an unmatched level of tunability through QA1's innovative QuickTune™ technology.

QuickTune™ Modular Valve Technology:

The defining feature of the MOD Series is its dry modular valve packs that can be completely swapped out — without removing the shock from the car. This allows for full revalving in minutes without interrupting the oil path or risking debris and air contamination. Medium compression and rebound valve packs are included as standard, with optional soft or firm packs available separately.

Key Features:

• Double adjustable design with 24-click independent compression and rebound adjustment and low-speed bleed control for precise tuning of ride quality and weight transfer
• QuickTune™ modular valve packs allow complete revalving without shock removal — an industry first
• Fully threaded billet aluminum body for ride height adjustment and corner weight tuning
• Large solid piston with blow-off valve for improved driver feel and control up to 1,600 lb. of force
• Remote nitrogen canister for ease of installation in tight spaces; base eyelet is indexable for flexible mounting orientation
• 10-inch tapered pigtail spring rated at 450 lb/in — American-made with fewer coils and smaller wire diameter for increased travel and reduced unsprung weight
• Compressed height: 10.13 inches | Extended height: 15 inches
• 100% dyno tested and serialized; proudly made in Lakeville, Minnesota

The MG501-10450A Pro-Coil coilover kit is engineered for enthusiasts and racers who demand maximum suspension adjustability and consistent on-track performance. The combination of modular revalving, independent compression and rebound tuning, and ride height adjustment via the threaded shock body makes this one of the most versatile coilover systems available for GM performance builds.