Fits 2012-2016 Harley Dyna Switchback FLD

Stepped headers merge into a true reverse-cone 4"straight can muffler
1 3/4 in. headpipe steps up to 1 7/8 in. into the collector to increase flow and improve performance
4 in. muffler body with black billet end cap (except where noted)
Removable spiral-core louvered baffle included
Include mounting hardware
Long muffler length with black finish
Heat shields included
Made in the U.S.A.

NOTE: Includes 18m to 12mm O2 sensor port adapters