so as the thread name states, i know the intercooler is pretty new but kpax & the downpipe each state that they should add about 20hp each. has anyone tried the new intercooler, downpipe, and a kpax exhaust together yet? or even just the downpipe & kpax? i know they are all great on their own but i wonder if they work well together without having the computer tuned. thoughts/comments?