The mountune Sport GPF for the Mk4 Focus ST has been developed as an effective way to reduce exhaust back-pressure at the turbocharger, improving turbo response and releasing additional power and torque.
Incorporating a larger diameter 3” bore entry and exit with a high-flow GPF housed at its core, you can benefit from a substantial reduction in back-pressure and in-turn enhanced power and torque output across the entire rev-range, whilst still maintaining conformity to UK emissions requirements*.
The mountune Sport GPF is also supplied with an adaptor pipe which allow easy installation with the mountune GPF-back exhaust system.
Please Note: Revised engine calibration will be required for optimal performance.
WARNING: This product has been designed and is intended for UK markets and complies with UK MOT tailpipe emissions regulations. Installation of this part on a vehicle that is driven on public roads outside the UK may violate other territories laws and regulations relating to emission requirements and motor vehicle safety standards.
*based on the current UK MOT emission testing requirements.