Improoving and upgrading the GT

The first thing to do in order to upgrade your GT is to install an intercooler and a B.O.V (blow off valve), as it came out of the factory with neither of them........
After installing these a new exhaust system of 2.5inch diameter pipes has to be installed, from the catalyst and back, as the factory exhaust was much similar to the natural aspirated MK2.....
With these modifications the horsepower will rise at aprox. 135hp!