Dom, apart from the fact you have been the unluckiest Mk5 Golf owner on the planet Do you really think that Stage 2+/3 caused this damage? Or do you think the car has always had an inherent problem and the tuning just made it worse?
Wish I knew mate. The car ran fine with superchips and PDT remaps, had no issues whatsoever, the hiccup with Revo was found on loads of cars after inters, and was down to the actual map and not the car.
All I know is, I've only had the car for about 3 weeks in the last 3 months, rest of time it has spent at the dealers, after the turbo was fitted and engine rebuilt, the intank fuel pump died, the low pressure fuel sensor died, and now the garage reckons the fuel regulator has died, and that HPFP has only done about 3000miles max since new! The milltek downpipe had all cracked around the flange, after scouring loads of places in the northe east to get it fixed, I ended up at a dead end, I phoned Milltek and managed to speak to Phill Millington, who chopped it off at the cat, and replaced the full exhaust upwards of the car for free
at least one good thing came of the whole experience
Car has no power from 2000rpm - 4000rpm at all, overboosts like hell when the boost does actually finally come in at 3700rpm ( 2bar of boost). N75 has been replaced etc etc. Car still in garage, TPS isnt getting any HPFP's in until 4th january, so theres another few more weeks without the car....
I would only stick at stage 2 from now on, but obviously loads of people have been happy with it and had no issues, I'm just voicing my opinion