Okay some people may thing this is a crazy question, but does any one know what all pipes will fit a 2000 cr 125. I heard that the kx pipes bolt up certain years to the honda's but just a select few. and also does anyone know the major difference between the 2000-2001 and the 02-03 year dealing with the pipe on the cr125, like will they fit and just need brackets or what bc the flanges are different part numbers. i didn't know if anyone had tried this. and one more quick question, has anyone saw a very noticable gain out or the high compression gasket kits....or has ne one tried to trim a 54 mm to a 56mm? thanks alot