Im lookin at probably buying the SCT Livewire programmer for my 2007 GT.

My question is where to get it from? I know at Americanmuscle.com if i buy it threw them they'll do free tunes for life (and since im not done adding stuff to my car thats great!)

BUT! I've heard a whole bunch of good talk bout Bamachips.com, so im kinda wondering if i would upgrade my car later on is it free tunes for life threw them too?? Any ideas??

Thanks,
Mike