This 034 Motorsports Turbo Inlet Hose is a robust silicone upgrade for longitudinal 1.8T engines with K04 or F21 turbo setups. Its 2.0-inch inlet and 3-inch MAF diameter optimize airflow, while the 4-layer nylon and wire reinforcement prevent collapse under vacuum.

It retains full compatibility with factory DV, PCV, and vacuum lines, and includes a new hose clamp set for a straightforward installation. The hose fits Audi A4 (B5/B6) 1.8T models from 1997-2005 and Volkswagen Passat (B5/B5.5) 1.8T models from 1998-2005.