Eventuri Audi B9 RS5/RS4 - Black Carbon Intake with secondary duct amp We use 4 in piping

We use 4 in piping from the engine side to the cat

5" 114mm oval shaped tips

This exhaust great compliment to either the factory valved side mufflers or to Fabspeed's Maxflo Performance Side Exhaust System

Alpha Performance Porsche 997

This exclusive exhaust system promotes superior exhaust scavenging ultra-reliable material integrity and produces jaw-dropping exhaust tones that command attention

Eventuri Audi B9 RS5/RS4 - Black Carbon Intake with secondary duct amp We use 4 in piping*Must Provide Vehicle Vin Number After Ordering* Performance Gain: 11 16hp, 12 17ft lb At The Wheels The Audi B9 RS4 RS5 Eventuri intake was developed to give less restrictive airflow to the turbo whilst maintaining low inlet temperatures. The RS5 RS4 engine bay becomes heat soaked very quickly so simply having an open cone system would result in better airflow but with higher inlet temperatures. We therefore completely re engineered the inlet track