my bro has a 150BHP GTI TDi. the heads just gone, and its over £500 to fix it! just make sure you get it checked properly if it starts sounding like a tractor!
he asked a mechanic and he said it was the injector sticking open and overfuelling it! not so, and now he's paying the price for running a damaged engine!
EDIT:Goes like stink though! can get you some oldish pics if you want! its on anniversary rims, coilovers and loads of other subtle mods!