questions
 

when you get an intake what do you mean by tuning? and why do you need to tune it? and how do you tune it?

RE: questions
 

:D

RE: questions
 

An intake might tend to lean out your A/F ratio, although I doubt that an intake alone without other mods would lean it out excessively. A tune would allow you to adjust the A/F ratio and other parameters for performance improvements. It is done by reflashing the ECU (computer) in the car with a handheld device or by installing a pre-programmed chip.

RE: questions
 

99+ (do not know about 98 or older) come from the factory, 1 full point rich.

It'll take full-bolt ons to lean out the air-fuel, and even then it won't be so lean it's catastrophic.

RE: questions
 

so if i get my LT headers and X pipe... will i be running lean since i have a new programmer in my car?