QA1 Kit, GM Pro-coil Aluminum S-adj 10-500 Tapered Flat Large - GS507-10500C

QA1 Kit, GM Pro-coil Aluminum S-adj 10-500 Tapered Flat Large - GS507-10500C

These QA1 GM Pro Coil Systems are available for 1971-1996 Impalas and Full Size GM vehicles, including Full Size Chevy, Buick, Oldsmobile and Pontiac models, and even Ford full size vehicles and Galaxies. They 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.

Key Features

• Brand: QA1
• Part Number: GS507-10500C
• Product Type: Shock Absorber and Coil Spring Assembly
• Fitment: Universal Fit – custom installation may be required.
• Built for improved handling, stance, suspension control, and reliable performance
• Designed for serious street, performance, drag, pro-touring, and custom builds

Fitment & Installation Notes

Universal Fit – custom installation may be required. Professional installation is recommended when suspension geometry, alignment, ride height, welding, or fabrication may be involved.

Emissions & Compliance

Catalog compliance data lists CARB:N and/or EPA:N. Confirm state and local requirements before street use.

Why Buy This Part

Choose QA1 for proven performance parts engineered for enthusiasts who care about fitment, quality, and real-world results.