The mountune GPF-back exhaust for the Puma ST gives the 3-cylinder EcoBoost a much more befitting soundtrack, while reducing back-pressure and enhancing vehicle aesthetics.

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

The exhaust is fully EC approved, meaning it meets strict European standards for road use, offering performance and sound without compromising compliance.

It also comes supplied complete with a new exhaust valve assembly, allowing you to easily swap your actuator across to retain full valve control.

This system also includes an adaptor to join it to the OE exhaust 

We also recommend using two of the mountune exhaust isolators