The new mountune EC Approved GPF-back exhaust for the Mk8/ Mk8.5 Fiesta ST gives the 3-cylinder EcoBoost a much more befitting soundtrack, reduces back-pressure and enhances vehicle aesthetics.

Constructed from 70mm 304 stainless steel, the mountune EC Approved GPF-back system improves vehicle performance thanks to the low-back pressure design, whilst the carefully engineered muffler features a Helmholtz resonator which ensures the cabin remains free from unwanted drone or boom.

The mountune GPF-back also comes supplied complete with a new exhaust valve assembly, so you can easily swap your actuator across to retain full valve control.

This system also includes an adaptor to join it to the OE exhaust - not shown.

PLEASE NOTE: This exhaust will fit on both Pre and Post September 2020 Models, for Pre September 2020 models, use the supplied valve actuator and not the stock actuator.