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

Slash Cut 71-84 Shovelhead (kick & e-start) (Polished Stainless Steel)

Straight Cut 71-84 Shovelhead (kick & e-start) (Chromed Steel)

Straight Cut High Exit 84-94 FXR (Polished Stainless Steel)

Slash Cut High Exit 84-94 FXR (Satin Stainless Steel)

Slash Cut 91-05 Dyna (Polished Stainless Steel)

Slash Cut 91-05 Dyna (Satin Stainless Steel)

Straight Cut 86-99 XL (excl. Custom & XL883R) (Polished Stainless Steel)

Straight Cut 86-99 XL (excl. Custom & XL883R) (Satin Stainless Steel)