CTS-V3 "Spec-R" Lowering Springs by Swift Springs/RP USA

Refined Performance USA is the first & only company to work directly with Swift Springs as an exclusive dealer of the Swift Spec-R Springs ("R'" denotes Racing) for the Cadillac Brand. We have continuously worked in-stride for more than six years with the Swift Team. Developing the "Spec-R" Spring together— solely to provide the very best performance springs possible for the very best OEM suspension system on the market! The RP USA/Swift Spec-R’s are the only advanced dual-rated track duty springs on the market for V-Series Cadillacs. For a more engaging understanding of the dual-nature found only in the RP USA/Swift Spec-R Springs— please read further. To begin, a small portion of the springs have a tighter “progressive-rated” wind-up that compresses perfectly under the car’s weight & effectively is the “tender section” which stays out of active “play”. That section of the springs allow for the car to be lowered while still keeping the springs fully captive to the approxim