BMW E46 M3/M3 CSL - Cat-Back Exhaust System with Quad Polished Trims Part_De-Cat Requires mandatory ECU reflash

Requires mandatory ECU reflash

and never locks

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BMW E46 M3/M3 CSL - Cat-Back Exhaust System with Quad Polished Trims Part_De-Cat Requires mandatory ECU reflashOur range of Cat Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in volume of their exhaust and or add a more suitably aggressive tone. All our products are made from 304L Aircraft Grade stainless steel. This quality material will ensure that your Cat Back system