I think there are several things that lead to stories like this I'm heading down the same road but admit not ready to throw in the towel yet have too much invested and no way about to take that big a hit on selling. First off all you have to say is VW....every time I need to do something to this car get ready to get bent over....power steering is going out on it and I've got trans issues with my 6 speed. Only a few trusted tdi mechanics and only a few even willing to work on modded setups. Like said before better know your way around these things if you want to go off the deep end past bolt ons. If I had to do it all over again I would have kept it at the basic clutch, tune, and gauges and called it a day. My car is lucky to get a couple thousand miles a year on it just can't seem to keep the thing running one thing after the next.