Polished stainless Slash Cut / Chromed steel Straight cut. 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: > 71-84 Shovelhead (kick & e-start) (NU)