In addition to the GT45 MRC Tuning upgrades the V8 4.2 direct injection system with new LPFP (low pressure fuel pump) and HPFP (high pressure fuel pump) pumps. Those familiar with direct injection tuning know that the fuel system is an area that provides substantial difficult for tuners. Only one company has demonstrated successful R8 4.2 direct injection fuel system upgrades until now and that is EPL (European Performance Labs) who was able to offer a HPFP upgrade for the Heffner Twin Turbo kit which allowed 8.5 psi of boost and a gain of 50 wheel horsepower.
MRC Tuning is a very accomplished tuner on the Audi and VW platforms so AudiBoost expects them to pull this off. They win numerous tuner of the year awards and also have done a very trick twin supercharged R8 V8 setup which they did the tuning for. It will be interesting to see what MRC Tuning is able to do with this turbo setup, teaser video for now below.