i did the same thing and chopped my 03 999s in for a 04 999r as the new s has still less power than the 04 r the 57 termi systen should be out by now but a new version ... if not dont buy it as i had 7 end cans go and a rear head manifold . the best thing as well is get the dealer to change both sparkplugcaps/coils for the new version under garantee |