I was wondering, is there a intake system that is offered for the MazdaSpeed Protege? I know the intake runs through the intercooler so that is will be harder to make one. The other is and exhaust system. The stock Racing Beat is not straight through, and it isnt as loud as I would like it to be. Here is my question : What intake would increase power ( doesnt have to be substatial) and be the right one. I was looking into the Apexi 3' exhaust, would that be a mistake or should I just stick with the Racing Beat one?