QA1 MG401-10500C MOD Series Pro-Coil Double Adjustable Front Coilover Kit with Remote Canister 500 lb/in Spring

The QA1 MG401-10500C is a MOD Series Pro-Coil front coilover shock kit featuring double adjustability and a remote canister design. Built for high-performance street and race applications, this kit delivers an exceptional level of tunability through QA1's multi-patent-pending MOD Series platform — allowing full re-valving in minutes without ever removing the shock from the vehicle.

At the heart of this system is QuickTune Technology: dry modular valve packs that can be swapped out quickly and cleanly, without interrupting the oil path or exposing the shock internals to debris or air contamination. Medium compression and rebound valve packs are included as standard; soft and firm packs are also available separately for further customization.

The double adjustable design provides independent control over both high-speed and low-speed valving characteristics. High-speed adjustment handles impact events such as road irregularities, while the low-speed bleed adjustment fine-tunes ride quality and weight transfer during cornering. The fully threaded aluminum shock body enables precise ride height adjustment for optimal stance and corner weight balance.

Kit Specifications:

• Shock type: MOD Series double adjustable with low-speed bleed, remote canister
• Compressed height: 8.63 in.
• Extended height: 12.63 in.
• Included spring: 10 in. large tapered flat, 500 lb/in. spring rate
• Spring rate ideal for front axle weight: 2,001–2,100 lbs.
• Canister: Nitrogen-charged remote configuration with indexable base eyelet
• Body construction: Lightweight aluminum
• 100% dyno tested and serialized
• Made in the USA (Lakeville, Minnesota)

The indexable base eyelet allows the shock and canister to be repositioned at the optimal angle for tight installation environments. Every QA1 MOD Series shock is 100% dyno tested and serialized before leaving the factory, ensuring consistent, verified performance right out of the box.