i want to but a kit i found on motman.com with a white bros. pro meg silencer, k&N airfilter and a dyno jet kit for my 250x.But i was reading up on the jet kit and every site i looked at said there is no jet kit for a 250x. It says that there is one for a 300ex, and i know the 2 quads are very alike and alot of things fit both, but nothing for the 250x. can that kit be used for both?because they did offer it for the 250x.or did the site just make a mistake.