My 2007 ST has the 2.3 engine rated at 175 hp. I believe it is the Mazda 2.3 engine. I’m pretty sure the CAI does nothing.

I sit in my warm car listening to NPR seething with hate that I can’t be out there in the 15 degree weather pumping my own gas so I can save 5 minutes of my life. And to add insult to injury, they make us pay less than almost any other state!