For under $100 I would consider getting one.....

But back to my original question.....would it even be worth doing to a 4 cyl with a CAI?

 

Yes... I am about to get that universal Carsound one put on my 2.25 inch piping Magnaflow muffler system at the local exhaust shop. I have a 1995 EX with AEM CAI, and am about to get a header in the near future. It will help, if you don't race then it probably isn't worth it though. But IMO no performance mods are worth it unless you race... or at least like to go fast.

 

yep, we just rewelded it to the new exhaust.