Rush Exhaust Long Style Full System - 1.75in. Baffle - Slash Down - Black , Color: Black 6131SL-175 This series uses a 1.75in. head pipe and a 2.00in. welded muffler with a beefy 2.50in. heat shield Long, clean lines add a smooth, muscular look to any model Heat shields are available in either the slash down or straight cut variety