AIRTEC Motorsport De-Cat Downpipe for BMW S63 engine (M5/M6) NO-DISCOUNT Revolver X4ts Hard Rolling Truck

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AIRTEC Motorsport De-Cat Downpipe for BMW S63 engine (M5/M6) NO-DISCOUNT Revolver X4ts Hard Rolling TruckTechnical Data By removing the original restrictive catalytic converters located within the factory OEM downpipes, back pressure is hugely reduced, which in return means faster response, increased power and a more aggressive exhaust note. One of the only manufacturers that offer a cast elbow to retain diameter! Will fit the following models: F10 M5 F06 F12 F13 M6 Please note: De cats are sold for motorsport and off road use only and will not pass a UK