Hey Guys, just joined & is my 1st time posting. I got a 2005 GP Base 3800V6 and i want a PCM also. After reading a lotof threads on this site, It seems like Intense is the company of choice due to the fast shipping & quality of the tunes... about the case relearn, does it need it? the one guy said his car was fine, backfired once, but is all good. I do not know anything, well very little, about case relearns... Hard to do? necessary for re-programmed PCM? I just got my car 3 months ago, 56k, and i just want to up the HP. $ is not a huge problem and i am willing to spend $. I just have a hard time finding parts for my 2005 Base model grand prix, everything is for <2003 or the GT/GTP/GXP..I know the engine in the GT and base models are the same but are all parts interchangable? or are the engine bay's slightly differ in size etc.? i even thought of maybe getting a turbo kit for it if i decide to keep the car (long term) or i thought of just small upgrades until i get a newer ride.. any good sites, any advice & any help is much appreciated! thank a lot guys! ~ Josh N