What is this pipe? Regarding XS-Power turbo kit Iâ€™ve already heard all the â€œditch it and buy something elseâ€ type comments. Problem is, itâ€™s not mine and the moneyâ€™s already spent, so for now we have to make this workâ€¦at least for now. So hereâ€™s my question: WTH is the tube with the bung welded to it?? I think itâ€™s too small to be the downpipe. The exhaust side of the turbo is about 2.75â€ dia, this tube is about 2.25â€ dia (I think). It also looks to be too big to be the dump tube for the wastegate. But I could be wrong.