Audi RS4 B9 Avant - Resonated (Quieter) Cat-Back Exhaust System with Polished Oval Trims Model_A 45 (2013-18) -Billet Oil Return Adaptor

-Billet Oil Return Adaptor

Combined with the integral and highly accurate conductive low-fluid switch in the tank

Requires Stage 2 ECU Remap

5-inch catalyst

What is an oil pump

Audi RS4 B9 Avant - Resonated (Quieter) Cat-Back Exhaust System with Polished Oval Trims Model_A 45 (2013-18) -Billet Oil Return AdaptorOur 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