I finally got the write juice box from Con today what a great guy he actually answers his phone on Sunday and had no problem talking to me about my problems. So I ran through the numbers on the attitude man setting 5 really moves but after doing some 0-60,s I got on the freeway and I was cruising on setting 3 and I heard a really loud knocking sound come from under me it sounded like it was coming from the tranny but I am not sure. It did it one more time later on but I am not sure were its coming from both times I was just cruising on the freeway no stress at all. Iwill be pretty upset if I allready screwed something up the first day I used it. Any suggestions as to what it might have been would be helpful.