just my 2 cents worth. Depending on your money situation. You have 2 choices.
1. Have the stocker rebuilt, but that can get costly, if the turbo has run long enough and hurt enough stuff you will need a complete center section, from comp. wheel to turbine wheel. The thing I don't like about the stock turbo is the bearing system inside the turbo, carbon seal backplate and 270 trust bearing. Don't get me wrong, they make good power and if rebuilt will work fine. you have to ask yourself how much are you willing to spend for a stock turbo??? compaired to buying something new and improved.
2. Save up for an upgrade for your car, cause that is what it's all about anyway. Am I right guys? I want to upgrade and go faster everytime I am at the track. There are plenty of good upgrades out there and a lot of great people on this board that are willing to help someone out and help them not to make the same mistakes they have made. I don't know if PTE still will take stock turbos for cores or not but you can call them and find out. All that will cost is a phone call. Also if the turbo starts to self destruct, you can damage the motor for sure!!!!! My buddie destroyed a beautiful GN 3 days after buying it for 11g's. But that was not due to a turbo issue. Just saying it can happen. Maybe you can even find something used you could buy if you trust the guy selling it.
Hope this helps.
Good luck
TTnewB
RUQuickNF's Brother in law. Hope the car goes faster that 11.72
Need to go to the track!!! bad