Ok people, I am wondering; after making a mod such as CAI, header, cat back or any bolt on, are you supposed to disconnect the battery for a bit and reconnect, or does the ecu know automatically after the mod and adjusts for it? Clue me in will you please? Thanks. Cheers.

 

i would disconnect it for a bit

 

You don't need to but people do it cause it forces the computer to "Re-Learn". I honestly don't know how effective it is but this is a "tradition" that people usually follow.