Firestone Coil-Rite Air Helper Spring Kit Rear 08-14 GM SUV (W237604186) Fabrication>Clamps Polyurethane bushings increase power to

Polyurethane bushings increase power to the ground by reducing the deflection associated with rubber

The system features single 4

This cat replacement is constructed of mandrel-bent

Each system is built from premium T-304 stainless steel and is mandrel bent to give you the absolute best in performance and durability

Firestone Coil-Rite Air Helper Spring Kit Rear 08-14 GM SUV (W237604186) Fabrication>Clamps Polyurethane bushings increase power toIf you're looking for a smoother ride for your vehicle that has a coil spring suspension, Firestone Coil Rite air helper springs are what you need. Designed to fit inside existing coil springs to create a variable spring rate, Coil Rite will level your vehicle and assist with more effective braking and handling, even under heavy loading and adverse road conditions. Coil Rite enables you to control the air pressure in the air helper springs so you can