S&S CYCLE 1800-2687 550-1108 2-into-1 Qualifier Exhaust System - 50-State - SilverFeatures Full stainless steel construction Computer aided stepped header design to maximize power output Precision bends allow for class leading ground clearance Full length heat shields on front and rear header pipes Race inspired S&S end cap Sound reducer dB insert included Oxygen sensor ports allow use of wide band or stock O2 sensors Made in the U. S. A. WARNING Qualified manufacturer declared 50 state federal emissions compliant catalyst exhaust