HyperCo Helper Springs are enhancement springs for high-performance, aftermarket suspensions used in Motorsports, Street Performance and Off-Road applications. The main purpose of the Helper Spring is to support, or help, the main spring by keeping it in contact with its spring perch when the suspension is at full droop. Full droop occurs primarily during pit stops or when the vehicle becomes airborne. The flat wire design allows for a specifically designed solid height which helps with optimization of the total vehicle performance package

These are 2.5ID HelperSprings are 4 inch Length, Picture is Demo Picture From HyperCo