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BMW M4 (F82) Coupe 3" Secondary De-Cat Bypass Performance Exhaust

BMW M4 (F82) Coupe 3" Secondary De-Cat Bypass Performance Exhaust

Imperial Performance

£486.3

Fits to Cobra Sport Valved Cat Back only (BM103) - Pre-PPF models only. (Requires 2 x BMW gasket - part number 18307851168 - not included). Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality. This BMW M4 performance exhaust is made in 3"/76.2mm bore pipework and replaces the secondary catalyst (Cat Bypass). This de-cat sports exhaust is sold for motorsport and off road use only and will NOT be able to pass a UK MOT emissions test or p

Imperial Performance's own words, read from their page.

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.