BASSANI XHAUST 2:1 Exhaust - Hotrod - Chrome 1F67CStepped headers merge into a 3 1 2 short straight muffler body with Hot Rod turnout end cap 1 3 4 head pipe steps to 1 7 8 into the collector to increase flow and improve performance Removable spiral core louvered baffle included Hand MIG welding 18mm and 12mm O2 ports with adapters and plugs Includes mounting hardware Full heat shields included Made in the U. S. A.