![GPF-back Exhaust [Mk8/ Mk8.5 Fiesta ST]](http://www.mountunestore.com/cdn/shop/products/2709-cbe-aa_2048x.png?v=1612907889)
![GPF-back Exhaust [Mk8/ Mk8.5 Fiesta ST]](http://www.mountunestore.com/cdn/shop/products/2709-gpf-ba_2048x.png?v=1613475098)
2709-CBE-AA
The mountune 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 60mm 304 stainless steel, the mountune 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.
Available with either a polished stainless or carbon fibre trim option to suit your individual preference.
This system also includes an adaptor to join it to the OE exhaust - not shown.
PLEASE NOTE: Pre-September 2020 models use a three-bolt valve-motor fixing (see valve assembly guide here). Post-September 2020 models use a single bolt fixing. Please ensure you confirm on your vehicle if you're not sure which you need and then select the correct option required when ordering.
From the GPF all the way to your choice of polished stainless, or carbon fibre trims, the mountuneexhaust system delivers when it comes to quality and detail; from the beautiful TIG welds and engineered features on the outside, to the drone-reducing Helmholtz resonator on the inside, we've got you covered.
United KingdomWanted this for a while, glad I ended up buying it gives the mk8 the slightly deeper sound it should have, not stupidly loud but just right another great mountune product �
![mountune GPF-back Exhaust [Mk8/ Mk8.5 Fiesta ST] Review](http://cdn.stamped.io/tr:h-800,/uploads/photos/535_6120745074882_670b5d08_57a3_4c8b_be5d_d0de6328ab41.jpg?)
United KingdomExcellent quality,and so pleased with the audible and visual optics it gives to the car
United KingdomExhaust looks and sounds great with the carbon tips against my race red ST. Had a few issues with a slight leak on the back box to mid pipe join, ended up using a bit of exhaust paste and refitted the clamp and jobs a good’un. As always with mountune hardware the quality is fantastic.
