Sure it will. Go over to newcelica.org and you can see dyno results on the same engine before and after a CAI install. They will net you a few Horsepower on the high end. A well made one will give you gains accross the whole rev range:thumbup:
How's it going.. hope this helps for you. I just bought an '05 Corolla S about a week ago and tried to install an AEM CAI that I got handed down from my friend. It was confirmed to fit the '03 & '04 Corollas but when I installed it, I found out that the engine in the '05 is a little different which the older CAI's will not fit. Sorry. I even called AEM and they said that they haven't come out with the CAI's for the '05 yet. I think we just have to be patient and wait for the CAI's for the '05 from TRD,Injen, and AEM. hang in there. Let me know if you find any CAI's that fit an '05 Corolla S. Thanks.
I read on one of the downloads from www.corollatoys.com a TRD instruction stating a conflict that CAI can not be installed where fog lights are installed? So basically the corolla S 2004 and 2003 cannot have CAI?