AIRTEC Motorsport De-cat downpipe for Focus RS MK3 Garrett GT4508R Insulate your BMW 335i N54

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AIRTEC Motorsport De-cat downpipe for Focus RS MK3 Garrett GT4508R Insulate your BMW 335i N54AIRTEC Motorsport downpipe de cat for Focus MK3 RS The Original Catalyst and down pipe , unlike the older ST225 and Focus RS mk2, are made in one piece. This new design features some restrictive bends and an exit bore size of only 55mm. With a new bore size of 70mm the new AS performance Replacement Down Pipe has over 50% more capacity. This part is sold for motorsport and off road use only and will NOT be able to pass a UK MOT emissions test or