QA1 DD501-130V1 Pro-Rear Double Adjustable Coilover Conversion Kit 3.25in Proma Star 12-130/250

The QA1 DD501-130V1 is a bolt-in rear coilover conversion kit designed to replace factory suspension components with a fully adjustable performance coilover system. Built around QA1's renowned Proma Star double adjustable shocks, this kit delivers independent control over both compression and rebound damping, allowing precise tuning for street, strip, or road course use.

The kit features a 3.25-inch diameter coilover body paired with 12-inch travel springs rated at 130 lb/in and 250 lb/in (dual spring setup), providing a wide performance envelope. All necessary mounting brackets and hardware are included for a complete bolt-in installation without cutting or welding on compatible vehicles.

Kit Contents:

• (2) Double Adjustable Proma Star Coilover Shocks
• (2) Performance Coilover Springs — 130 lb/in / 250 lb/in, 12-inch travel
• Mounting brackets and all necessary installation hardware

Key Features:

• Double adjustable damping — independent compression and rebound adjustment for precise handling tuning
• Proma Star shock bodies — QA1's high-performance aluminum shock platform built for durability and consistent damping
• Bolt-in design — no cutting or welding required for compatible applications
• Coilover spring perches — allow ride height adjustment independent of shock travel
• High-strength mounting hardware — all necessary brackets and fasteners included

QA1's rear coilover conversion kits are engineered for enthusiasts who demand maximum adjustability and performance from their suspension. The Proma Star platform is trusted by racers and performance street drivers alike for its consistent, repeatable damping characteristics.