I need to find the stock exhaust diameters from the turbo back on my 88 Daytona Shelby Z. I had them, but misplaced them. Everything on this car is stock (Garrett turbo, blah blah blah), and the exhaust is starting to go and I'm thinking of replacing everything. If I remember right, the turbo has a 2.25" down pipe- can anyone confirm? Thinking of running the same size pipe all the way back (I do know there is a "step down" in pipe size at some point).