QA1 GM Pro Front Coil-Over System - Double Adj. - 10in x 400lbs/in - Flat Large - Aluminum

Front Pro Coil double adjustable stock mount shock kit. Compressed length of 8.63" and extended length of 12.88". Includes 10" spring with rating of 400 and has a large tapered flat end. These QA1 GM Pro Coil Systems are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Specially designed for QA1's Pro Coil Systems, the American-made lightweight high travel springs have fewer coils and a smaller wire diameter, resulting in increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications. Adjustable Pro Coil System Features: Available in independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or drag "R" Series adjustable, Lightweight Billet Aluminum Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs, Non-Adjustable Pro Coil System Features: Steel, Stock Appearing Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs

• Achieve the ultimate balance of ride quality and performance handling with independent tuning of rebound and compression valving.
• Easy bolt-in installation that works with your factory or upgraded QA1 tubular control arms.
• Up to 2 of ride height adjustment allows you to dial in the perfect stance.
• Limited Lifetime Warranty for peace of mind.
• Proudly made in the USA

Upgrade your GM vehicle’s suspension with the QA1 GM Pro Front Coil-Over System, part number qapGD401-10400C. This double-adjustable shock kit provides independent compression and rebound tuning, allowing you to balance ride quality, handling response, and driving performance for street, autocross, road racing, drag racing, or street rod applications. The kit includes a 10-inch spring rated at 400 pounds per inch with a large tapered flat end and is designed for stock-mount installation.
The lightweight billet aluminum coil-over shocks feature a fully threaded body for convenient ride-height adjustment. With up to 2 inches of adjustment, you can refine vehicle stance, corner weighting, and suspension geometry without replacing components. The shocks have an 8.63-inch compressed length and a 12.88-inch extended length, providing useful suspension travel for performance driving. Easy bolt-in installation is compatible with factory or upgraded QA1 tubular control arms, helping simplify setup and installation.
QA1 Pro Coil Systems use high-travel springs with fewer coils and smaller wire diameter to increase clearance between coils, reduce unsprung weight, and promote faster suspension response. This American-made system is dyno tested, serialized, serviceable, and rebuildable through QA1 authorized service centers. The qapGD401-10400C kit is sold as a pair and includes QA1’s Limited Lifetime Warranty. Professional installation and proper suspension adjustment are recommended to achieve the desired handling characteristics.

Features:

• Double-adjustable valving with independent compression and rebound control

• 10-inch spring with a 400 pounds-per-inch spring rate

• Large tapered flat spring end design

• Fully threaded billet aluminum shock bodies for ride-height adjustment

• Up to 2 inches of ride-height adjustment

• 8.63-inch compressed length and 12.88-inch extended length

• Easy bolt-in installation for factory or QA1 tubular control arms

• High-travel springs designed to reduce unsprung weight and improve suspension response

• Dyno tested and serialized for consistent performance

• Serviceable and rebuildable by QA1 authorized service centers

• Made in the USA

• Sold as a pair

• Limited Lifetime Warranty