Had a little play tonight in my car, on a private road of course. My ED30, BCS TBE, ITG and a stage 1 ish map circa 300bhp seen 175mph on the speedo which was 162mph on the GPS, dont know if there was anymore in that but that's all I was prepared to give. Good for a stage 1 car though! Certainly pulled nice all the way, should do a genuine 170+ with 350bhp!
On another note, had my best mates E46 330CD on the GPS, it's on a 3" turbo back, big cooler and custom map, we seen 164mph on the GPS! Mental for a derv, it would of actually went faster we think but it ran out of revs!