just read an artical on the R20 golf, and was not impressed with the figures, 270BHP is a nice base level of horsepower, but 258Ibft torque is pretty rubbish, considering a stage 2 GTI puts about 300Ibft out.
still I imagine it should tune up very well, with all the extra internal work, then those figures should be vastly increased. for the price though i dont think its worth the money