I have seen in this and other forums some people were not sure they got the new ECM. According to Suzuki in one of my many calls, All King's sold prior to 1-13-05 were in the update. The Original ECM has two serial #'s 1) 32920-31G00 2) 112100-2440 These numbers on the new ECM end with a 1 instead of the 0. Hope this helps ease a piece of our Suzuki mystery.