One of RacingLine’s most popular products, the VWR12G50D Cold-Air Intake System, delivers denser, cooler air from outside the engine bay directly to the fuel metering unit, improving efficiency and engine performance on 2.0 TDI engines in Golf Mk5, Audi A3 8P, and Leon II.

Key Features

• High-Flow Giant Filter — hand-crafted in the UK, available in Trifoam® or pleated cotton. Provides maximum airflow with minimal restriction for superior filtration and power gains.

• Impressive airflow gains — up to 9% more airflow at peak power compared to the standard intake, delivering quicker turbo spool-up (up to ~500 RPM faster) and lightning-fast throttle response.

• Race-proven design — developed for VW TDI race cars to optimize airflow, increase torque, and support higher-performance remaps.

• Refined intake sound — enjoy the rich, sporty induction note under hard acceleration, while remaining fully enclosed to keep noise levels controlled.

• Durable, high-quality construction — robust pipes and fittings engineered for long-lasting use.

• Bolt-on installation — includes all necessary hoses, brackets, and clamps for straightforward fitment.

Benefits

• Faster turbo response and more linear engine delivery

• Increased power and torque potential, especially when combined with remapping

• High-efficiency filtration for long-lasting engine protection

• Sporty intake sound with minimal NVH impact

• Hand-built quality ensures consistent performance

What’s Included

• Cold-air intake pipework

• High-flow filter TRIFOAM

• Mounting hardware and brackets for plug-and-play installation

Compatibility

• VW Golf Mk5 2.0 TDI

• Audi A3 8P 2.0 TDI

• SEAT Leon II 2.0 TDI