I have a 2006 mazda 6s and am wondering how and what's needed to install a CAI. I'm plannin on installin an Injen CAI and am wondering if a CPE Bypass module is needed.
And if any1 out there can give me a more technical outlook to what the bypass is for, it would be greatly appreciated.

I just got this car and am not used to all the new "technology", I just moved on from my 97 dodge neon with power nothing and no A/C.. So the 6 is a big move up for me.