QA1 Kit GM Pro Coil Alum S-adj 10-400 Tapered Flat - GS401-10400B

QA1 Kit GM Pro Coil Alum S-adj 10-400 Tapered Flat - GS401-10400B

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.

Key Features

• Brand: QA1
• Part Number: GS401-10400B
• Product Type: Coilover Spring and Shock Assembly
• Fitment: Universal
• 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 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.