• Stepped headers merge into a true reverse-cone megaphone muffler
• 13/4?" headpipe steps up to 17/8?" into the collector to increase flow and improve performance
• 4" muffler body with billet end cap
• Removable spiral-core louvered baffle included
• Includes mounting hardware
• Available in long (24") and short (21") muffler lengths with chrome or black finish
• Heat shields included
• Made in the U.S.A.