GPF-back Exhaust [Mk4 Focus ST-Line] Intercooler High-flow mandrel bent lower rear

High-flow mandrel bent lower rear intercooler hard pipe

Fitting time: 15 mins

Offering enhanced performance with an aggressive and level stance

Engineered Helmholtz resonator for a less intrusive

Note: Product is compatible with Mk7

GPF-back Exhaust [Mk4 Focus ST-Line] Intercooler High-flow mandrel bent lower rearThe 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