034Motorsport Stainless Steel Racing Catalyst, B9 Audi S4/S5 n circulating through the system and

circulating through the system and causing more wear

5 Resonated cat-back system Scorpion Exhaust is designed to fit 2006-2011 boasts a stunning and distinctive Scorpion Red Power sound and with a 63

0TSI MQB vehicles

Dry carbon fibre

Fitting instructions can be viewed by clicking here

034Motorsport Stainless Steel Racing Catalyst, B9 Audi S4/S5 n circulating through the system andProduct Description: The 034Motorsport Stainless Steel Racing Catalyst for B9 Audi S4 S5 is designed as a drop in replacement for the restrictive factory catalytic converter. The Stainless Steel Racing Catalyst offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and an enhanced exhaust note. This upgrade eliminates the primary flow limitation in the factory exhaust system, allowing you