The one I have right now is a T3/T04E .63 exhast with a 54 trim compressor. The thing I don't like about it is it has a standered 0r stage II wheel. Not a stage III like most others have. What would it cost to put a stage III wheel in? I know there is some machining that needs to be done to get it to fit. Would I just be better to buy another turbo for 530 ish (group buy)? This turbo I have is only 5 months old.