Driving home from work the other night, a Lexus IS300 came up beside me, and then had to get behind me. He wanted to play, so I obliged. As soon as the lane we were in cleared up, I hit it. As soon as I hit full boost, I looked in the mirror and saw him back there, but in front of his lights, I noticed that I was putting off some smoke... is this normal for a turbo? I don't remember seeing it before, but maybe I just didn't notice. I'm guessing turbo cars smoke a little, thats why after I polish my exhaust tips, they're black again shortly after...