more HP... BUT its heavier than the "first gens" (using the term "first gen" loosely since they are still techically integras).
i have the '04 RSX specs on my website (link in sig)
the only thing i like about the '05 is the all-red tails... took them long enough.
bottom line, i still like my '04 better

its more distinctive with the "bumpy" head and tail lights... doesn't look like any other car out there. can't say that about the '05. i think it looks like a cross between a civic and a TSX (with 2 doors of course). the only thing i might say the 02-04s look like is a teg