Actually believe it or not I gained a little bit of power mid range. I didn't notice any loss of power low end. The power really picks up in the 6.5/7k range now instead of 10k. It's alot sprintier now I would say. It suprised me as I was expecting a loss in the low end range. I tack welded to pieces of metal in the direction from the outlet to the midpipe. I then bent them over .. so it's not so much a direct route out of the pipe but more of it leading the air that way.. So the air is still circulating through just getting out faster.