QA1 MG501-11300A Pro-Coil MOD Series Double Adjustable Front Coilover Kit with Remote Canister

The QA1 MG501-11300A is a MOD Series double adjustable front Pro-Coil coilover kit featuring a lightweight billet aluminum shock body and a remote canister nitrogen reservoir. Designed for high-performance drag racing, pro-touring, autocross, and street rod applications, this kit delivers an exceptional 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 in minutes while the shock remains on the vehicle, without interrupting the oil path or exposing the shock to debris or air contamination. Medium compression and rebound valve packs are included as standard, with soft and firm packs available separately.

The double adjustable design provides independent low-speed bleed control over both compression and rebound characteristics, allowing precise tuning of ride quality, weight transfer, and shock response on corner entry and exit. The fully threaded shock body enables ride height adjustment for the ideal stance and weight balance.

Key Features:

• MOD Series double adjustable shock with low-speed bleed adjustment — independent compression and rebound control
• Lightweight billet aluminum shock body
• Remote canister nitrogen reservoir for installation flexibility in tight spaces
• Indexable base eyelet — repositionable to optimize knob access and mounting angle
• Includes 11-inch tapered pigtail spring rated at 300 lb./in.
• Compressed height: 10.13 inches | Extended height: 15 inches
• Fully threaded body for ride height adjustment
• QuickTune Technology — re-valve in minutes without removing the shock
• 100% dyno tested and serialized
• Serviceable and rebuildable by QA1 Authorized Service Centers
• Made in the USA at QA1's Lakeville, Minnesota facility
• Sold as a kit (pair)

QA1's American-made high-travel springs feature fewer coils and a reduced wire diameter, increasing coil spacing for greater suspension travel. This design reduces unsprung weight and improves response time for optimized suspension performance across a wide range of driving conditions — from casual street use to hardcore racing.