Originally Posted by WopOnTour
Not only that but it has numerous errors and false data (Oldpro=1 post??) and seems to promote various "upgrade" kits and companies that aren't even IN the build book (or vendors HERE for that matter)
+1 i was just thinking "holy crap alpine got GM to put them in the build book??"
related to the post... where did u get that 2.5" is good to 300hp and no higher? just curious.