Sprint Performance lowering springs are made with the enthusiast in mind. They offer lowering heights ranging from 1.50" to an astounding 3.25"on some applications. They combine the best of both worlds, a grat ride at a height that enthusiast want. Sprint Springs are designed, engineered, and tested in house. All Sprint springs are shot-peened, heat treated, pre-set, inspected, tested and performance powder coated to insure a lifetime of durability. They are manufactured in the USA using the finest chrome silicon steel on computerized CNC coiling machines. Sprint Springs are also ISO 9001 Certified so they come with a limited LIFETIME WARRANTY.