GPF-back Exhaust [Mk4 Focus ST-Line] fitted-golf75gti plus it adds an aesthetic

plus it adds an aesthetic boost to your engine bay

Please note: Revised engine calibration will be required for optimal performance and your vehicle may emit the EML without it (our m380 / m400 calibrations both support this)

The only Ford-endorsed Mk2 Focus RS airbox upgrade - as used in the Focus RS500 and MP350 upgrade

is easy to install and comes with three different colour hose options

Die cut manufacturing process ensures smooth edges

GPF-back Exhaust [Mk4 Focus ST-Line] fitted-golf75gti plus it adds an aestheticThe mountune GPF back exhaust for the Mk4 Focus ST Line adds a noteworthy boost to audible performance, reduces back pressure and enhances vehicle aesthetics. Constructed from 304 stainless steel, the 3" bore system improves vehicle performance particularly once power output has been raised, thanks to the low back pressure design, whilst the carefully engineered internal muffler ensures this system remains free from intrusive cabin boom, whilst