A short-ram would for sure. CAI is a tough call though. It would bolt on to the throttle body just fine, but it's going to need a path down into the fender liner (thus a CAI). Does your CRX have an opening for this?
see its not my crx, its my friends, and i know he would want this, but im not gonna tell him untill i know if it will fit......and yes i think it has an opening for this, not sure tho....the car is a 89, suppose if there isnt a opening we can always make one.....