Eibach Spring Rubber - Coilover - 80 Durometer - Yellow YA0817 Very strong mid-range torque and

Very strong mid-range torque and throttle response

Valve Spring Locators and Seat Cups provide a hardened barrier between the springs and the aluminum heads

it is a suitable upgrade from Bi-Metal engine bearings

allowing an easy installation into the nitrous system

Real-Time Data Logging

Eibach Spring Rubber - Coilover - 80 Durometer - Yellow YA0817 Very strong mid-range torque andEibach Spring Rubbers are used to add progressive rate to your linear race spring. Coil Spring Rubber Insert Four different Spring Rubber durometers (50D 90D) available for desired rate tuning. Fits springs with 2. 5" to 3. 0" inside diameters. Adds approximately 1. 5" of solid height to your spring. Made in the U. S. A. and sold individually. Eibach has been committed to creating the finest race springs in the world for over two decades. Eibach