I know, I know. I'm a newbie, but what does a tune do for a car. Is it just a better programming for your cars computer or what. What does it consist of and how much do they cost? I saw on another thread where a guy added all kinds of stuff like a blower and a cam and what have you, and after he dyno'd that he had a tune done and got an extra 80 or so bhp. Thanks fellas