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.
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