alright guys im in need of some help and a good explanation on what to do. i bought my 07.5 mm duramax a year ago and it already was tuned with efi live dsp5 . I recently got a fass 165, beans sump installed and when i was there i asked about a retune face to face and he told me i would have to find the original shop who tuned it and get them to unlink them from my vin. the problem is that i live in nc and the truck was from florida so my question is will i ever be able to retune my truck and if so how do i go about doing so??? i got big plans for this truck but if i cant retune then idk what im gonna do. please if any of you guys can lead me in the right direction on how to do this considering i already bought an autocal to just load the tunes myself (not doing my own tunes but getting some made) then i will high appreciate it. THANKS GUYS..