SPANKY LS1

iTrader: (24)

I think it is to supply warm exhaust to your cats while they're cold to help with emissions, correct? If this is the case, when I install my Hooker LTs and ORP, I no longer need the AIR stuff, right? Thanks, Shawn

MIGHTYMOUSE

iTrader: (59)

its just fresh air straight from your lid that gets injected into the manifolds, this air mixed with the exhaust gas exites the cat-converters quicker/allowing them to heat up quicker and get good/correct emissions quicker

(because on start up the car runs rich in the computer like a choke) to keep it running when its cold.