So I am starting to shop for a CAI/FWI for my Monte, but it's the wifes car and she doesnt want it to be loud, so I am looking for the best compromise between flow and noise.... Obviously a HAI is out, as those are likely the loudest, and wouldnt net the best results anyway. Which leaves me with something like the SLP, or WizAired, or possibly the TDC FWI, but which of these is going to be the quietest?