Stainless steel. Used to tune SuperTrapp mufflers with the internal disc system. Typically more discs is more horsepower and sound. Less discs is less sound and more torque.
Fits: >
Satin stainless. 2-1 Megaphone system with a 2" collector and 4" diameter muffler. Provides an approx. 8-10% HP gain over stock. Designed for best results with stock capacity and generally smaller engines. Backpressure is adjustable through the use of the SuperTrapp internal disc system. Includes 12 four inch discs.
Fits: > 91-05 Dyna