BMW 135 Coupe E82/88 - Secondary Cat-Back Exhaust System with Ceramic Black GT80 Trims Part_Rear Diffuser 9dB) - Static 4

9dB)  - Static 4

idle and neutral revving - it now finally sounds as it should

Example of Audi TTS sports exhaust (turbo back system - de-cat & non resonated)

000rpm test: 83dB (+7dB)

BMW 135 Coupe E82/88 - Secondary Cat-Back Exhaust System with Ceramic Black GT80 Trims Part_Rear Diffuser 9dB) - Static 4The Milltek Sport Secondary Cat Back systems replace all the OEM parts of the exhaust system that fall after the secondary catalyst and 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