BMW F80 M3 3" VALVED PRIMARY CATBACK PERFORMANCE EXHAUST

Fits to Primary O/E Catalyst - Pre-PPF models only. (Requires 2 x BMW gasket - part number 18307851168 - not included). This exhaust includes the secondary de-cat and is sold for motorsport and off road use only and will NOT be able to pass a UK MOT emissions test or police road side checks. EML lights may activate after removing the standard second O/E catalyst. An ECU Re-map is recommended to correct this problem and stabilise all power increases. This primary cat back exhaust includes a H-pipe section to combine and equalise the gas flow giving a sportier exhaust note. Please Note - This performance exhaust retains the use of exhaust valves. When switching drive modes (e.g. Normal to Sport+ mode) your exhaust tone will continue to swop from quieter to louder tones as before. Fits to pre-PPF vehicles only. Requires 2 x BMW gasket - part number 18307851168 - all other relevant gaskets and fittings are supplied.