QA1 GM Pro Front Coil-Over System - Single Adjustable - 10in x 650lbs/in - Flat Large - Aluminum - GS401-10650C - Select GM 1973-2004

Fits select 1973-2004 Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models including Monte Carlo, El Camino, S10, and Regal.

The QA1 GM Pro Coil System provides a direct bolt-in solution for drivers seeking precision control over ride height and shock valving. Featuring single-adjustable billet aluminum shocks, this system allows you to tune compression and rebound simultaneously via a single knob, making it easy to transition from street performance to track duty. The fully threaded shock bodies offer fine-tuned height adjustment to achieve the perfect stance and weight balance for superior handling.

This kit includes American-made high travel springs (10-inch length, 650 lbs/in rate). These springs are engineered with fewer coils and a smaller wire diameter to reduce unsprung weight and react faster to road inputs while providing increased travel. Every shock is 100% dyno tested and serialized to ensure consistent performance out of the box.

• Single adjustable valving (simultaneous compression and rebound)
• Lightweight billet aluminum coil-over shocks
• High travel 650 lb/in springs for improved suspension response
• Threaded body for precise ride height adjustability
• Serviceable and rebuildable design for longevity
• 100% Dyno tested and serialized
• Easy bolt-in installation with included hardware
• Made in the USA
• Manufacturer Part Number: GS401-10650C