09 YZF Exhaust fited to a 09 WR

3 replies to this topic
  • ASternad

Posted August 15, 2009 - 07:03 AM


Will 09 450 YZF exhaust system bolt up to a 09 WR450?

  • tribalbc

Posted August 15, 2009 - 07:18 AM


No problem. All aluminum frame YZ exhausts will fit all aluminum frame WR's.

I assume you mean complete system as the headers are a different size. You can still do it but you would need a gasket between the smaller WR header and the YZ can.

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  • ASternad

Posted August 15, 2009 - 08:43 AM


ok great, now if jetting is needed would you expect to go larger on the main or smaller?

  • WR450FGreg

Posted August 15, 2009 - 11:25 AM



Slightly larger if at all.



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