BMW G87 M2 - Non-Resonated Secondary Cat Back System with GT-115 Cerakote Black Trims Audi > A4 > 2.0 TFSI S line B8 (2WD and quattro manual-only) Saloon & Avant > 2008 to 2011 The twin 3

The twin 3

In the comfort driving mode the valves remain shut forcing the gas flow through the flow-optimised rear box

Speed sensors sold separately

These Audi A3 3

BMW G87 M2 - Non-Resonated Secondary Cat Back System with GT-115 Cerakote Black Trims Audi > A4 > 2.0 TFSI S line B8 (2WD and quattro manual-only) Saloon & Avant > 2008 to 2011 The twin 3Our 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