Mate of mine has a GTI-R, He gave him basically 15K euro, Martin Tracy had to do all of the engine work on the car ( including replacing a valve ), We basically took the whole car apart and dropped the engine up to him and collected it afterwards, we brought the car up to him to tune it and he wouldn't even adjust the timing said he had to get it done and come back to him, mate ran it in properly and he basically made 260 BHP with fuel mods ( bear in mind lots of owners are seeing around 300bhp with less than what was done to his car), 2 or 3 weeks later after loads and loads of mechanically related problems ( car cutting out, dropping idle and not allowing to rev over 2K, Etc. ) the car was blowing about 2 L of oil out the breather, Basically Tracey didn't want to know anything about it, the mate just lost all love for the car and it's parked up now for the past 8 months. He still has to take it apart but most of the people he has quized have come to the same conclusion he fucked up the build. that and numerious other stories i have heard about him just being a lazy arse tuner.