2020040 Flowmaster's Federal legal direct fit catalytic converter is for the 2005 to 2009 Mustang with the 4.0L engine. These stainless steel converters meet USEPA standards and include a 25,000 mile emissions, and 50,000 mile/5 year exterior casing warranty. Please note: These USEPA Federal converters are not available for sale or use on vehicles licensed or operated in the state of California. Features: Flowmaster Quality Meets or exceeds all USEPA 49-state requirements Available for a variety of Direct Fits About Flowmaster Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound. SPECS Air Tube Adaptable No Assembly Length (in) 52 Assembly Width (in) 28 Body Length (in) N/A Body Width (in) N/A Brand Flowmaster CARB (California) Compliant No Clearance Category Exhaust Emission Code 2 Fitment Direct EO Replacement Grade Premium Grade Inlet Connection Type Flanged Inlet Diameter (in) 2.25 Location Left and Right Material Stainless Steel Outlet Connection Type Clamp On Outlet Diameter (in) 2.25 Oxygen Sensor Location Pre & Post Catalyst Product Type Catalytic Converter Substrate Material Ceramic UPC 700042029570 California Proposition 65 Required No Part Number 2020040