When i bought the car the previous owner mentioned he had installed turbo's. I had the car for about 40k miles after that. I have no way to guarantee the mileage on the turbo, but the chassis did have 130k.
They didn't smoke when i took them off. They boosted healthy imo... no blue smoke. One turbo has no shaft play, the other has minimal shaft play. When i bought the car about five years ago, my friend routinely mentioned how clean the turbo's looked.