Well not exactly. Its actually easier to say what they dont share. The Ralliart has the exact same drivetrain minus AYC. The engine has a smaller turbo, different cams, and a different tune. The body lacks the flares and much more closely resembles a lancer GTS. Also, no brembos, and different suspension. Most of this would be taken care of with a few typical modifications.

I dont know that the new sti has longer gears, but that would mean each gear carries a larger speed range, and can be held in gear longer.