I used a turnbuckle to hold the waste gate closed just to try and see if the truck would make more boost or if it really doesn't need any waste gate mods... ..... hit 27 psi just getting on it and never even broke 40 mph. I am at work so I couldn't take it for a long test drive. I can't wait till I get off tommorow and see what it will do. It is like I have only had half of a J/A,my trans is really screwed now.