I ordere over $6,500 in parts from z1 and the best deal they said they could give me was $250 off! they said all the parts were in stock and they would have them shipped out the next day. well i called them a few days later and turns out they didnt have all the parts. they said it would be a week or so before they would get them in. so in two weeks i got my parts all but my front mount intercooler.so after calling them for ever i finaly got a hold of them and they said they would just have greddy ship it to me directly. so after about a week of waiting i was trying to get a tracking # and z1 kept telling me that greddy hasnt given them one yet. after days and days of asking what was going on with my intercooler finaly all said and done i got it in about 2 months. you figure you spend some thousands at a place you would get some good customer service. during this whole time they never called or returned my many messages one time! i will never go through z1 in my life agin unless i have to. sorry about your turbo problem! i feel ya