There was a recent article in one of the popular import mags where they put I/H/E on a new Accord and it pulled a 6-7hp increase over stock. The PS removal probably gained a little, and the chip, maybe 3-4 from what I've heard. BTW, jet ECU upgrades are good, but they just don't pump out what they claim (just like almost every other mod manufacturer)
I'd like to be more optimistic, but I really haven't seen most Hondas gain that much from basic bolt ons. Now on the other hand, that same mag put I/H/(test pipe?) on a Supra and it gained a crazy 70hp or something.
I'll have to find that mag somewhere.