S&S CYCLE 2-into-1 Diamondback Exhaust System - Guardian Black - Race Only 550-1028

2-into-1 Diamondback Exhaust System - Guardian Black - Race Only Full stainless steel exhaust system with stainless steel header pipe heat shields, Oversized stepped header primary tubes for optimal flow and performance, Header length helps your M-Eight motor make excellent power, 4" OD diameter stainless steel muffler ends before the rear axle, Four exhaust bungs for easy O2 sensor installation and air/fuel monitoring, Computer aided design & precision bending for improved ground clearance, Made in the U.S.A.