thats cuz stage 1 +wga runs less rich then your stage 2.. so they can make more power...
you can always use a bigger intercooler.. by exhaust, do you mean cat back? if just that, get the 02 housing and a downpipe as well
you can always use a bigger intercooler.. by exhaust, do you mean cat back? if just that, get the 02 housing and a downpipe as well