I have a question about the effects of changing the air intake. If the air flow is changed doesn't the computer ideally need to be reprogrammed using a dynamometer, 5 gas analyzer, etc? I found a video from Scotty about it here and it made me wonder. I ask these questions because I like to learn. As a retired engineer I have an interest in learning the how's and why's. If Scotty's wrong I'd like to know, and why.