When im at stop lights or just sitting in traffic i notivce a very light smoke coming out of my hood scoop, it doesnt always happen but when it does happen its constant where you can always see it. It smells like something burning and when i open my hood and look it seems to be coming up from the underside of the turbo.
I took it to the dealership twice and they said it was an exhaust gasket (by the cat after the downpipe). I dont see how that could cause any problem, regardless they said they fixed it and it never went away. No one can give me an answer as to what it is when i ask.