Audi S4 B9 Remus Cat Back System c-class Since the 911 Turbo engine

Since the 911 Turbo engine bay is densely packed

leading to consistant

These precision-machined billet aluminium inserts are designed to fill voids in the factory rear differential mounts

forged carbon

OEM Part Number: Bush = 2K3511413 / 2K3 511 413

Audi S4 B9 Remus Cat Back System c-class Since the 911 Turbo engineThis Remus Cat Back exhaust system is designed for Audi S4 B9 models. Constructed from 100% stainless steel with a shot blasted surface, it delivers a powerful aggressive racing sound with low back pressure and improved performance. Lightweight and handmade in Austria, this system ensures perfect shape and fitment.