• Easy Bolt-In Installation
Minimal modifications to be made. Remove the existing shocks and springs and the QA1 Pro Coil System bolts right back in.

• Specially Designed Conical Springs
This spring is designed so that the lower end sets on the coil-over shock and the upper end sets in the original spring bucket in the frame. This allows for the use of a longer and lighter spring for more stored energy, offering increased weight transfer. Greater durability is also achieved by locating the spring pressure in the frame and not on a single stud.

• Ride Height Adjustable
Threaded aluminum body allows ride height adjustment.

• These shocks are revalveable and rebuildable by QA1 Authorized Service Centers
The QA1 Pro Coil System utilizes the Proma Star® single and double adjustable shocks. The Pro Coil System includes:
• (2) Proma Star® coil-over shocks
• (2) specially designed conical springs. Two progressive spring rates are available, based on small block (250/350 lbs.) or big block (365/465 lbs.)
• All Mounting Hardware

 

Popular Coilover Kits
Most Musclecars - $479.00 pr

Easy Bolt-In Installation

Deflective Disc Valving
Gone are the days of removing shocks to adjust valving -- simply turn the knob.

5/8" Centerless Ground, Hard Chrome Plated Piston Rod
Precision surface, increased durability, eliminates piston rod flex.

Machined, Forged Aluminum Body
Lightweight, stronger than billet.

Bright Anodized Body
Unmatched durability, ease of maintenance, show-winning appearance.

Three Step Sealing System
Aerospace material. Exclusively engineered double lip seal with wiper eliminates seal drag and dirt intrusion.

100% Dyno Tested and Serialized
Assures consistency in production and performance.

Shock Mounting Hardware
Bushing material exclusive to QA1 shocks, for both upper and lower mounts. Mounting hardware is zinc or chrome plated for durability and professional appearance. Exclusive nylon race bearings for smooth, bind-free operation. Also available with polyurethane bushings.

These shocks are revalveable and rebuildable by QA1 Authorized Service Centers

Most Stocker Star Shocks - $161.00 ea