Just Shortened my 04 450f Silencer, Looks Sounds Good

28 replies to this topic
  • John407

Posted June 23, 2004 - 06:08 PM


I didn't think the pipe diameters were the same. Isn't the 250F smaller?

  • rbm33

Posted June 24, 2004 - 04:42 AM


I didn't think the pipe diameters were the same. Isn't the 250F smaller?

im not sure. i have a 250 silencer at home, ill try it tonight and see.

  • crf450f

Posted June 28, 2004 - 12:06 PM


Cut it with a metal blade on a :lol:miter saw.
Still working and looking great!!!

  • 450GN

Posted June 28, 2004 - 01:28 PM


sweet that should work nice...
now i hear you leave the inside baffling a little longer?

so take about 3" off the outside pipe and maybe 2.5" on the baffling? :thumbsup: :devil:

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  • crf450f

Posted July 01, 2004 - 04:35 AM


Yes, so that inside baffle tube fits nicely into the end cap. You can't really go wrong with this one!! :thumbsup:

  • Joe_Jet

Posted July 01, 2004 - 11:12 AM


Doesn't the length change detune the exhaust system?


  • YZFmunky

Posted July 02, 2004 - 12:47 AM


Is there anyone who knows exactly the effects are of shortening the exhaust? any dyno's, any engine problems?

  • beavis450

Posted August 12, 2004 - 04:38 PM


wouldnt you have to rejet the bike after that like any other aftermarket silencer

  • revolucien

Posted August 13, 2004 - 05:26 AM


a friend just did it to his yzf400 and he loves it, he didn't have to rejet although we adjusted his fuel screw a little. he cut about 4" off(using a hack saw) and he noticed pick up on the bottom end and a little louder in volume.

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