This complete recirculating catch can breather kit for the MkIV Volkswagen 1.8T offers bolt-in installation for stock applications and modified cars. Featuring our 034Motorsport "Vortex" breather can, this kit upgrades the factory PCV system to separate oil vapor from crankcase gasses better, ensuring adequate crankcase ventilation while helping prevent oil from entering the intake tract

Complete breather kit for the 1.8T GTI, fully bolt-in for a stock application, and fully modified cars.  Neatly replaces the relay cluster mounted on the driver's side firewall (adjacent to where the engine harness comes over the firewall), a direct bolt in no modifications required.

This design can be used in aircraft and motorsport applications to remove oil and water vapor from the crankcase fumes. As crankcase fumes are forced out, they enter the catch can tangentially, through centrifugal force, causing heavier oil and water vapor to fling outward and drain down the walls of the can.  This is a much more effective way of separating oil and water vapor than most generic "catch cans"

Note: 

This catch can kit does not fit early AWD engine code cars.

Vehicles running catch cans in below-freezing temperatures are advised to remove the catch can during winter months to avoid freeze-up issues. Race cars that need to run catch cans in freezing conditions should take extra steps to prevent freeze-up, such as an electric heater or cleaning out the system regularly. Take care when routing the lines and avoid drooping, which can allow oil/water to collect and freeze.