GPF-back Exhaust [Mk4 Focus ST-Line] Intercooler and is available in three

and is available in three colours to co-ordinate the under bonnet of your RS

Note: The product image is for illustration only

Fitting time: 15 mins

Engineered Helmholtz resonator for a less intrusive

GPF-back Exhaust [Mk4 Focus ST-Line] Intercooler and is available in threeThe 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