QA1 Precision Products Coil Spring Lowering Kit

QA1 Precision Products Coil Spring Lowering Kits: Engineered Performance, Street-Ready Results

QA1 Precision Products has been a respected name in performance suspension since 1993, building its reputation on precision engineering and a commitment to quality that spans shock absorbers, coilovers, rod ends, and springs. QA1 engineers high-quality, performance suspension systems for muscle cars, classic trucks, and race cars — trusted by enthusiasts for superior handling, ride quality, and customization. That same engineering DNA is baked into every one of their Coil Spring Lowering Kits.

What Makes QA1 Coil Spring Lowering Kits Different?

QA1's Pro-Kit lowering spring sets are designed to reduce fender gap and give your vehicle a lower, more aggressive stance, while also lowering the center of gravity to improve handling during acceleration, cornering, and braking — and you can achieve all of this without having to change your existing shocks. This makes them an accessible upgrade for enthusiasts who want meaningful performance gains without a full suspension overhaul.

QA1 also offers several coil-over kits specifically designed to work with their lineup of drag and street shocks and struts, such as the COK103, which is compatible with QA1's HD, HS, and HR Series struts. For enthusiasts seeking a more complete transformation, QA1's coilover adjustable spring lowering kits provide comprehensive solutions that improve both appearance and handling dynamics.

Pro-Kit Springs: Progressive Rate Technology

QA1's Pro-Kit Lowering Spring Sets, such as part number 5287, feature a black powdercoated finish and a progressive spring rate design, available for both front and rear positions across a range of popular Ford applications. The progressive rate design means the spring stiffness increases as the suspension compresses — giving you a compliant everyday ride while still delivering firm, controlled response during hard cornering or aggressive driving.

Adjustable Coilover-Style Kits: Precision Fit and Tunability

QA1's coilover shock and spring packages pair their best-selling shocks with matched springs in a single, convenient kit, and also include spanner wrenches and thrust bearings so you have everything needed to complete ride height adjustments right out of the box. You can select from either single or double adjustable valving, along with your required spring rate, for a quick and easy way to equip your vehicle with coilovers.

A Brand Built on Engineering Integrity

QA1 engineers and manufactures performance shock absorbers, rod ends, spherical bearings, struts, springs, ball joints, suspension components, and related items for markets including circle track racing, drag racing, street performance, and street rodding. QA1's quality system is certified to the ISO 9001 standard, reflecting a level of manufacturing discipline uncommon in the performance aftermarket. Whether you're building a show-stopping cruiser or a track-day weapon, QA1 coil spring lowering kits deliver the stance and handling refinement that enthusiasts demand.

Explore the full range of Coil Spring Lowering Kits from QA1, or visit the QA1 Precision Products brand page to discover their complete suspension lineup.