BMW 4 Series F32 428i Auto - Resonated (Quieter) Cat-Back Exhaust System with Cerakote Black Trims Part_Rear Diffuser Sound example of the closely

Sound example of the closely related BMW 335D Exhaust (Dual Exit Rear Exhaust)

5mm bore pipework and replaces the secondary catalyst (Cat Bypass)

our dual exit exhaust conversion allows them to achieve the look with this fantastic cosmetic upgrade

Example of BMW 320D Sports exhaust (BM66)

with the launch of a BMW M3 style quad exit exhaust system

BMW 4 Series F32 428i Auto - Resonated (Quieter) Cat-Back Exhaust System with Cerakote Black Trims Part_Rear Diffuser Sound example of the closelyOur 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