On bpu will these upgrades help? Also if hks is gonna stop making there vpc which is like over a $1000 is there gonna be another option? Also the hks vpc isnt the same as the vpc chip? is it? And if not what are the differnces between the two. Sorry bout all the questions but hope someone can help thanks

i believe that the the aem unit, can be used as a replacement for the vpc/gcc combo. not a 100% on that but i'm sure others can confirm if that is correct or not. i'm pretty sure that if you tune them correctly, that those upgrades should help your cars performance, since the vpc helps intake and such related areas, the gcc is just used to further tune the vpc but i dont think that they are considered bpu mods, i might be wrong. i think the hks has discontinued the vpc, and has for a while. but the aem unit should be a good alternative. please have someone confirm this.