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Stock turbo needed

There isn't anything "specific" or different about the TTA turbo from the GN stock turbo. They are worth about $500 if they brand new. $375 used IMO.
 
I've also heard that the wastegate hole is bigger. I think Grumpy on the Buick board said they weren't. He's had several GNs and TTA's, so maybe he's right.
Mine didn't look any bigger than pictures of stock GN turbos, but I've never actually took a measurement side by side. That would be interesting to know for sure.
 
One difference I am aware of, is the Garrett letters are raised on the TTA and inset on the Buicks.
 
I have one, it came along with the car, and seems to be in good working order. I'd be willing to sell for $250 shipped.
 
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