My stock throttle body is 3", so I will go 4" when I get a bigger MAF sensor, and throttle body. What's the point now, to say I have a 4" intake? I understand bends restrict flow. I also understand that colder air, is denser, with more oxygen! which means more pop out of my motor. So I am now trying to figure out if getting a little more warm air, or a little less cold air has more oxygen. After doing this setup, my comp g now shifts from 2nd to 3rd at 85mph, while before, it was only at 80mph. I video recorded the before and after.
I am now wondering what is more effective, but somebody telling me to go to 4" and lose the bends, means absolutely nothing to me, if you don't have some facts to back that up.