QA1 MG401-11300A MOD Series Double Adjustable Pro-Coil Aluminum Coilover Kit with Remote Canister

The QA1 MG401-11300A is a MOD Series double adjustable Pro-Coil aluminum coilover shock kit built for the demands of high-performance drag racing and pro-touring applications. Featuring a billet aluminum shock body, remote canister design, and low-speed bleed adjustment alongside independent compression and rebound control, this kit delivers an exceptional level of tunability straight out of the box.

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

Key Features:

• Double adjustable valving with independent compression and rebound control plus adjustable low-speed bleed
• Compressed height: 8.63 in. | Extended height: 12.63 in.
• Includes 11 in. tapered pigtail spring rated at 300 lb./in.
• Remote nitrogen canister for ease of installation in tight spaces
• Indexable base eyelet for optimized knob access and mounting flexibility
• Fully threaded shock body for ride height adjustability
• Lightweight billet aluminum construction reduces unsprung weight
• 100% dyno tested and serialized
• Serviceable and rebuildable by QA1 authorized service centers
• Proudly made in the USA at QA1's Lakeville, Minnesota facility

QA1's Pro-Coil high-travel springs are USA-made with fewer coils and a smaller wire diameter than conventional springs of the same rate and length. This design delivers more usable travel, faster response, and reduced unsprung mass for optimized suspension performance. The kit is sold as a complete assembly with all necessary hardware included.