BMW F80 M3/F82 M4 - Race (Loudest) Cat-Back Exhaust System with Titanium Trims Millers is also available as a

is also available as a non-resonated version which is a louder option as it excludes the centre silencer and therefore

GPF Back Test Results (Efficient Mode):

This part is sold for non road use only and will exceed all legal noise regulations

2 V6 Sports Exhaust (Cat-back - non-resonated)

This system

BMW F80 M3/F82 M4 - Race (Loudest) Cat-Back Exhaust System with Titanium Trims Millers is also available as aOur 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