3.5-Inch Cold Air Intake System

The CTS Turbo 3.5-inch Cold Air Intake System is engineered for Audi models equipped with the 3.0T and 3.2L FSI engines, specifically for the B8 and B8.5 chassis, including the S4, S5, Q5, and SQ5. This system boasts a true 3.5-inch diameter with a large 6-inch velocity stack air filter, designed to maximize airflow into the engine. The OEM air scoop works in conjunction with a sealed airbox to efficiently channel cold air through the high-flow filter. Its single-piece CNC mandrel-bent aluminum intake pipe facilitates a smooth entry of air, aiming for peak power gains. The design avoids restrictive silicone pipes that can collapse under vacuum. This true 3.5-inch intake is intended to keep the supercharger operating optimally. This intake is exclusively for B8 and B8.5 Audi S4, S5, Q5, and SQ5 models with the 3.0T or 3.2L V6 engine. Replacement filters are available under part number CTS-AF-250.