• 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 polished billet end cap
• Removable spiral-core louvered baffle included
• Includes mounting hardware
• Heat shields included
• Made in the USA
Note: Includes O2 sensor bung plugs for pre-07 models
• 1 3/4" headpipe steps up to 1 7/8" into the collector to increase flow and improve performance
• 4"muffler body with polished billet end cap
• Removable spiral-core louvered baffle included
• Includes mounting hardware
• Heat shields included
• Made in the USA
Note: Includes O2 sensor bung plugs for pre-07 models
