Stepped headers merge into a straight 4" muffler
1-3/4" headpipe steps up to 1-7/8" into the collector to increase flow and improve performance
4" muffler body with black billet end cap with machined contrasting flutes
Removable spiral-core louvered baffle included
Oxygen sensor ports
Include mounting hardware
Heat shields included
Made in the USA
Note: '06-later models requires 12mm O2 adapter p/n 1861-0784 (sold separately)
