The Agency Power RX-8 Cat-Delete pipe features polished 3" T304 stainless steel piping that is TIG welded for maximum durability and maximum power. The cat delete pipe has two resonators and a bung for your oxygen sensor. The RX-8 cat delete pipe will not only improve performance and free up horsepower, but amplify your catback's volume. Be prepared to shoot flames from your exhaust! The cat delete pipe fits in the stock location allowing you to use your factory or aftermarket catback with no issues. The cat delete pipe is for off-road use only and may cause a check engine light to come on.