I have a 97 900SE which currently has 131K miles on it. When I bought it last year it had 126K on it. I have no way of knowing for sure, but I'm starting to wonder whether or not the Turbo was replaced at one point. From what I've read and heard, Turbos typically kick at about 80K to 100K. What do you guys think the odds are of this being the original Turbo?