Eibach Spring Rubber - Durometer 70 (Green) carbon fiber hood The system features BORLA®'s Polyphonic

The system features BORLA®'s Polyphonic Harmonizer Technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean

Ultra Low-Profile Design

Can be used in select Borla(r) GM truck ATAK(r) sound level systems to attain the S-Type sound level

A plug is integrated into the controller housing for mating to the redesigned wiring harness's positive-lock connector

S-Type Cat-Back(tm) Exhaust System For 1986-1991 Chevrolet Corvette (C4) 5

Eibach Spring Rubber - Durometer 70 (Green) carbon fiber hood The system features BORLA®'s PolyphonicManufacturer Part # : SR. 2530. 0070 Market Description Used to add progressive rate to your linear race spring, Four different durometers (60D 90D) available, Fits springs with 2. 5" to 3. 0" inside diameter. Features and Benefits Four different Spring Rubber durometers (50D 90D) available for desired rate tuning. Spring Rubbers are used to add progressive rate to your linear race spring. Adds approximately 1. 5" of solid height to your spring. Fits