2006 Cadillac STS Helper Springs
- Firestone Suspension®Coil-Rite™ Rear C Type Air Helper SpringCadillac STS / STS-V 2006, Coil-Rite™ Rear Replacement C Type Air Helper Spring by Firestone Suspension®. Quantity: 1 per Pack. These air springs bellow provide adjustable spring rates far superior to the standard coil spring. This...Control the air pressure in the air helper springs for varying loads and road conditionsSpring performance can be altered as easily as inflating a tire$64.51
2006 Cadillac STS Models