Not really comparing the two, just stated that a RSX Type S with I/E/H/Hondata can be pretty quick from a roll. Most with this combination have run 13.9-14.2@98-100MPH. IMO a stock EVO should pull, but don't get too cocky cuz some EVOs, especially stock 2003 models only run mid 13s@99-100MPH (a lot run faster). So like I said, a RSX with those mods could give a stock EVO a scare. But really there is no comparison, because just like I said, a couple of mods on the EVO will smoke almost all non-FI RSXs. Just to keep up would take a turbo or supercharger, and then they can only keep up with modestly modified EVOs in most cases. Look what ever dude, the EVO is a much better car than the RSX Type S, I know this sh*t so don't get your panties all bent out of shape!!!! Next time I'll use a 350Z to make you freaking feel better.

 

get rid of kn in take and get the injen system and then do a turboback.

 

Do the complete exhaust next.
Catback, testpipe, downpipe. Don't worry about the o2 housing, that is not worth much power if anything at all.

Is the o2 housing just a pointless mod? or is it just a costly mod with little result on the dyno?

 

The latter...