I have a 2003 crf450r and when I got the bike it came with a white brothers carbin pro exhaust and was told it came from a 250f. The SS pipe mount between the muffler and header pipe does not line up without making a bracket but everything else fits.. The muffler mount ended up breaking and looking for a new one to put on now but bike specific ones are through the roof in price. Does anyone know what 250f year might be the one I had so I know what to look for. Or any years compatible. 450/250 to a 2003 450f I've read the page for compatible 450s saying 02/03 header the same and need full exhaust to run 03/04.