item bolts to exhaust manifold ( not included ). 3 bolt inlet flange, 2.5" OD outlet pipe, includes FREE muffler clamp. item is direct fit , unit slides into muffler assembly ( muffler not included). item has provision for both factory O2 sensors ( sensors not included ). original heat shields not required with this unit. converter features a ceramic core with high concentration of precious metals. manufactured by a leading converter manufacturer in USA and 100% EPA approved. no cutting or welding required, this is a direct fit unit, simply bolt in place of original item. EVERYTHING SHOWN IN PICTURE IS INCLUDED *PREMIUM DIRECT-FIT ? HIGH QUALITY MATERIAL ? OE STYLE & PERFORMANCE** BRAND NEW!!!