QA1’s Pro Coil System upgrades your classic Mustang’s suspension.
Designed for 1964–1966 Mustangs, this coilover kit is single adjustable and offers ride quality, modern handling, and stance adjustability in a straightforward, bolt-in package.
It features a 10” coil spring with a 400 lb./in.
rate, making it an excellent choice for street-driven cars and restomods that require sharper handling and improved control.
Factory suspension designs limit performance and calibrating.
QA1’s single adjustable coilovers allow you to fine-calibrate compression and rebound with 18 adjustment settings.
With one knob, you can firm it up for aggressive driving or soften the ride for cruising, giving you flexibility to match your Mustang’s style.
This system allows you to adjust ride height from factory stock height down to 2” lower.
Whether you’re aiming for a lower stance or keeping an original look, QA1 Pro Coils let you achieve the right height without sacrificing drivability or suspension geometry.
No cutting or welding is required for installation.
QA1 designed this system as a direct bolt-in replacement that installs with basic hand tools, making it a perfect upgrade for DIY enthusiasts.
