i got a Special Edition sedan. it's just an LS/GS with leather and i read somewhere that it has a thicker stabilizer bar or sway bar (can't remember). It also comes with 15inch SE rims. Everything else is the same, same engine as LS/GS.
There's nothing really special about it at all.
if you want to look...
www.cardomain.com/id/integrasedan
I think all integras should have been GSR only in the first place, better engine and leather. a good combo.