Flowmaster's new Federal legal direct fit catalytic converter is for the 1983-1985 Camaro/Firebird with 5.0L engines, 1983-88 Monte Carlo SS with the 5.0L engine, and the 1982-1985 Corvettes with the 5.7L engine. This stainless steel unit is a one piece assembly with a 3.0" oval flanged inlet and outlet which connects to the factory Y-pipe and exhaust system. Hardware is included. These converters meet the USEPA standards and include a 25,000 mile emissions, and 50,000/5 year exterior warranty. Please note: These USEPA Federal converters are not available for sale or use on vehicles licensed or operated in the state of California.