AIRTEC Motorsport Breather Kit for Focus ST Mk4As part of our expanding Mk4 Focus ST product range, AIRTEC Motorsport is proud to launch our oil catch can upgrade suitable for track or fast road use. Oil catch cans are vital preventative additions to ensure performance of Direct Injection engines doesnt deteriorate over time. AIRTEC Motorsports solution to developing a catch can kit specifically for the Focus Mk4 utilises the available space to integrate seamlessly within the engine bay. It