2007-2010 WR450 Exhaust Mod Question

5 replies to this topic
  • Jim813

Posted December 17, 2009 - 06:24 PM


I recently bought a 2008 WR450 exhaust to make my 2008 YZ450f forest legal. Anyway, I am interested in taking out the inner-most baffle, held into the middle baffle by two rivets. After the inner-most baffle is taken out, what do you guys use to plug the holes that the rivets were once in? Or are they just left unfilled?

  • SXP

Posted December 17, 2009 - 07:01 PM


I haven't done it, but why not just plug it with rivets again?

  • Jim813

Posted December 17, 2009 - 10:35 PM


I haven't done it, but why not just plug it with rivets again?

It could be done that way, but I was just wondering if there was any other solutions?

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Posted December 18, 2009 - 02:31 PM


No need to plug those, will not make a difference. If need be I suppose you could put a little JB or expoxy in there.

  • grrrr

Posted December 18, 2009 - 09:15 PM


I didn't do anything, never even heard that one before.

  • Sasquatch2112

Posted December 18, 2009 - 10:03 PM


I didn't put anything in mine.

I recommend the PMB end cap, which is larger anyway, and worth the $$$.


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