Our Mazda RX-8 Decat Downpipe replaces the standard restrictive downpipe and catalytic converter with a stainless steel, 2.75" one-piece item. Increasing the bore of the downpipe and replacing the restrictive catalytic converter allows the exhaust gasses to flow much more freely, increasing the power output of the engine. Features: Manufactured from T304 stainless steel 2.75" bore TIG welded, CNC machined flanges Gaskets and bolts included Fitment Mazda RX-8 2003-2009 models. Please note: sold for off-road/track use only. Will not pass an MOT emissions test.
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