APR 2.9T Carbon Fiber Air Intake System Washable for Audi RS4 RS5 B9 CI100042 This is the ultimate intake upgrade for the Audi RS4 and RS5 (B9). It flows 36% more than stock, reduces pressure drop, and improves linearization across the turbos. This directly translates to +19 AWHP and +17 AWFT-LBS of torque on top of our Stage 1 (93) tune making this a simple upgrade for more power you can feel. Our system is a full upgrade as it replaces all of the intake components from the inlet scoop all the way to the turbo inlets. This is extremely important as focusing on the airbox alone does not address the main restrictions found in the factory intake system.
