QA1 MG501-10350C Pro-Coil MOD Series Double Adjustable Aluminum Coilover Kit 10" 350 lb/in Spring

The QA1 MG501-10350C is a Pro-Coil MOD Series double adjustable coilover shock kit featuring a lightweight aluminum body and a remote canister design. Built for high-performance drag race, pro-touring, and street performance applications, this kit delivers an unmatched level of tunability straight from the box.

At the heart of the MOD Series is QA1's QuickTune Technology — dry modular valve packs that can be swapped out quickly while the shock remains on the vehicle, without interrupting the oil path or exposing the shock internals to debris or air contamination. Medium compression and rebound valve packs come standard, with soft or firm packs available separately for further customization.

The double adjustable design provides fully independent control over low-speed compression and rebound bleed characteristics, delivering an expansive force curve capability for fine-tuned suspension performance across a wide range of driving conditions. The shock features a stock upper mount configuration and includes a 10-inch large tapered flat spring rated at 350 lb/in.

Key Features:

• MOD Series double adjustable shock with independent low-speed compression and rebound bleed adjustment
• Lightweight billet aluminum coilover shock body
• Remote canister — nitrogen charged, with indexable base eyelet for flexible mounting orientation
• QuickTune Technology: field-swappable dry modular valve packs without opening the shock
• Compressed height: 10.13" | Extended height: 15.00"
• Includes 10" large tapered flat spring, 350 lb/in spring rate
• Fully threaded body for ride height adjustment
• Stock upper mount configuration
• 100% dyno tested and serialized
• Serviceable and rebuildable by QA1 Authorized Service Centers
• Made in the USA — manufactured at QA1's Lakeville, Minnesota facility

The MG501-10350C is ideal for enthusiasts seeking maximum adjustability and consistent performance across drag racing, autocross, road racing, and street rod builds. Each unit ships as a complete kit ready for installation.