Mike is right about the RSX. Honda also set up the new civic si that way- when vtec "engages," you can really tell. I was talking to a coworker about hondas (I own a 2006 civic si) and he made a comment something along these lines- "so, can you really feel it when vtec kicks in? I've driven (other hondas) where you couldn't really tell, and I like the in-your seat feeling."
I guess Honda is catering to its american customers, but I don't really know how it feels when a JDM Civic Type R engages vtec. could be a sudden kick.