Guys. I just made a major discovery. Atleast I think it is. look at the pic attached. On the throttle body right beneath the sensor with the red cap. There is a black circular thing sticking out. On my car, its not there. there is a hole there like the cap (or whatever it is,) is missing. I included the photo for BigMac's hotpipe install and mine is beneath it. What is that part, how important is it and could that be part of my boost issues since its on the throttle body?