Audi RS4 B9 Avant/Sportback - Non-Resonated (Louder) Cat-Back Exhaust System with Cerakote Black Oval Trims Model_320i (G20) Saloon 19> the BKR7EIX is the ideal

the BKR7EIX is the ideal spark plug choice for everything from standard factory vehicles to heavily modified Stage 2+ setups

Proven reduction in charge temps

6 litre engine

32kg giving a 20% decrease from the OE system weight of 20

Audi RS4 B9 Avant/Sportback - Non-Resonated (Louder) Cat-Back Exhaust System with Cerakote Black Oval Trims Model_320i (G20) Saloon 19> the BKR7EIX is the idealOur 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