QA1 Kit, Pro-coil Aluminum S-adj, 10-450 Tapered Flat Lrg - MS402-10450C

QA1 Kit, Pro-coil Aluminum S-adj, 10-450 Tapered Flat Lrg - MS402-10450C

QA1 Pro Coil Systems for 1964-1973 Mustangs 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.

Key Features

• Brand: QA1
• Part Number: MS402-10450C
• Product Type: Shock Absorber and Coil Spring Assembly
• Fitment: 1964-1973 Ford Mustang
• Built for improved handling, stance, suspension control, and reliable performance
• Designed for serious street, performance, drag, pro-touring, and custom builds

Fitment & Installation Notes

1964-1973 Ford Mustang 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.