Well I put my Bully Dog Torque Dog on today. What a diff. I like it, thanks Dan for the warning, I already ordered the 4 inch exhaust. I am happy with the way it felt, also at the dealer this past weekend I got to see a LP work. For all of the guys that say it pulses, I can't see how. It moves so slow, around and around. Kind of a piece of, well we all know. I also was told by one of the mechanic's there that he just uses the 7 psi pusher, and thats it. I will get more details later. Slowly I am learning, and if he has 153000 on his '00 with never replacing the LP or the injector pump must have something right.