I have a appointment with the dealer that told me my oversize tires (32's) are the cause of my boost drop. When I called the guy on the phone asked me, "This vehicle is modified, correct?" -"Yes but nothing has been done to the engine that would cause a drop in boost." Sounds like I'm in for some more BS. :rolleyes: Any suggestions? Magnuson-Stevenson Act? Better Business Bureau? tell them, "There's nothing wrong? So if I go to the sales depatment and tell them I want to trade this in for a '07 Off Road I'll get full value, right?" Drive my X through front window?