The Agency Power RX-8 Cat-Delete pipe features polished T304 stainless steel 3 inch piping that is TIG welded. Also included in the Cat delete pipe are 2 resonators and a bung for location of your Oxygen Sensor. The RX-8 Cat delete pipe will not only improve performance of your Mazda RX-8 but will give your RX-8 a deep racing tone. The Cat-delete pipe will fit in stock location allowing you to use your factory muffler. The Cat delete pipe is for off-road use only and may cause a check engine light to come on.