sorry guys I dont get on the forum much these days, way too much time in the cab. Anyway I agree with the cold air theory, as I had noticed it seemed to have more power during the cool of the evening. I again took out the airbox and have short ram, and of course it sucks hot air, so Im going to try to rebuild the CAI in the guard, just a couple of questions, the vacuum hose from the intake chamber, where should that go? and the vacuum hose from the engine mount, should I just not bother with that? oh and a third Q, I have had trouble with the trans going into 6th at highway speeds, it will only change into 6th when i level out if i have been going up slight incline, what sensor controls this ? thanks for any help.