QA1 GD502-15325 Front Pro Coil Double Adjustable Coilover Shock Kit with 325 lb/in Spring

The QA1 GD502-15325 is a front Pro Coil double adjustable coilover shock kit featuring a lightweight billet aluminum shock body and a matched 15-inch coil spring rated at 325 lb/in. With a compressed length of 14.5 inches and an extended length of 19.5 inches, this kit is engineered for performance-minded builders who want a precise, tunable front suspension without major fabrication.

The double adjustable design delivers independent compression and rebound tuning via an 18-position adjustment knob, giving you the flexibility to dial in handling for the street, drag strip, autocross, or road course. The fully threaded shock body provides up to 2 inches of ride height adjustability, adjustable with a simple turn of the spring seat nut. The kit bolts directly to OE stamped steel control arms or QA1 tubular control arms, making installation straightforward.

The included spring is purpose-built for QA1 Pro Coil systems — featuring fewer coils and a smaller wire diameter than conventional springs, which increases suspension travel and reduces unsprung weight for faster response and optimized handling. Each shock is 100% dyno tested and serialized, and is serviceable and rebuildable by QA1 authorized service centers.

Key Features:

• Front Pro Coil double adjustable stock-mount shock kit, sold as a pair
• Compressed length: 14.5 in. | Extended length: 19.5 in.
• Includes 15 in. USA-made high-travel coil spring rated at 325 lb/in
• Independent 18-position compression and rebound adjustment
• Up to 2 inches of ride height adjustability via threaded shock body
• Lightweight billet aluminum shock body reduces unsprung weight
• Bolt-in fitment compatible with OE stamped steel or QA1 tubular control arms
• 100% dyno tested and serialized at the factory
• Serviceable and rebuildable by QA1 authorized service centers
• Made in Lakeville, Minnesota, USA
• Eligible for QA1 Limited Lifetime Warranty (registration required)

The 325 lb/in spring rate delivers a firm, performance-oriented ride with excellent cornering capability, making this kit well-suited for drivers seeking a balance of aggressive handling and daily drivability.