short intake vs. CAI

I currently have a short raactive intake on my 92 civic si, I was wondering if anyone knew where IO would be able to purchase the extension pipe, to make it into a cold-air intake.

Any help would be appreciated..

Well assuming<--notice I said assuming...that almost all short ram pipes are about the same (3" daim. and a normal bend from the throttle body out towards the front of the car)there are amny companys that sell just the extension to "add" onto that including AEM and Injen. Sure there are tons more but can't think of any others off the top of my head right now.