i got 17t’s on the car, my friend was driving behind me and said smoke was coming out behind on decelerating and at idle, found a little bit of oil in the exhaust and sounds like turbo makes a popping sound when starting up as well, just installed a vacuum side oil catch can last week not sure if that makes a difference, but that is the most recent thing ive put on, but most likely turbos right or is there anything else ? boost is a little laggy as well just want to confirm i tried to post a video with this but doesnt let me lol