Just traded my 03 kdx220 for an 03 dx 250 because I want to get back into racing and to poor to have both. Anyway.....my first step to getting my bike race ready is ofcourse the exhaust. I found an fmf fatty gold on ebay that came off an 02. Will it match up with my 03 ??? If so will I need different jets ??? It already has an fmf shorty silencer. Thanks guys !!!