I'm still reading into the n55 as much as I can.. quick question tho. from my understanding when the n55 is untouched it doesnt give boost unless you go over a certain rpm? 2500 i think? but does this change with the jb4 and also if i do throw in a jb4 is it 100% necessary to get a charge pipe? I obv dont want the stock one to break but i also dont wanna spend to much just want a little more power thats all.. thanks in advance