just bought a bunch of stuff for my truck. 7in stack turbo back kit, wicked wheel, speed recalibrator, s&b intake, 3 pod guage kit. i only have a few things in and a only have one question. i started with the exaust. how do i get the old down pipe off. i loosened up the bolt and it does not feel any looser. do you have to beat it off. i am sure i will have a few more question. thank you.