Stepped headers merge into a true reverse-cone megaphone muffler. 1-3/4" headpipe steps up to 1-7/8" into the collector to increase flow and improve performance. 4" muffler body with billet end cap. Removable spiral-core louvered baffle included. Mounting hardware included. 12" muffler length. Heat shields included. Made in the U.S.A..
