Round Stainless Steel Case; Single Bolt-On Inlet; Single 2-1/2 Inch Slip-Fit Outlet; 9 Inch Body Length/ 15-1/2 Inch Overall Length; 4-1/8 Inch Width X 9 Inch Length X 4-1/8 Inch Height Catalytic Converter; Requires Exhaust Pipe Flange Gasket; Requires Exhaust Resonator Pipe