YZ muffler VS Aftermarket one ??

7 replies to this topic
  • MountainMax

Posted May 26, 2006 - 02:18 PM


I was thinking of buying a louder and more free flowing exhaust for my wr450, how does the yz one sound and perform? i can get them cheap on ebay (less then 100 bux CAD shipped) compared to like 400 for a fmf one. I also read about their header pipe with an expansion chamber in it similar to a 2stroke, how do they also perform?

  • byw

Posted May 27, 2006 - 05:23 AM


Stock Yz pipe sounds awesome very deep and loud.No spark arrestor though but if that is not a concern.You won't be disapointed with a Stock Yz pipe.

  • MountainMax

Posted May 27, 2006 - 08:24 AM


Thanks, bought one on ebay for $9.00. Do you think i will need to rejet after swapping mufflers, mine has promoto billet tip and one baffle removed already jetted to specs on sticky.

  • Bosco83

Posted May 27, 2006 - 09:43 AM


Hey mountain max how are you finding these on e-bay I have been looking for a while and haven't seen any.


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  • odonnks

Posted May 27, 2006 - 03:39 PM


That's a steal !!

  • MountainMax

Posted May 27, 2006 - 06:48 PM


there are two more on ebay right now, called yz450 pipe

  • ARin

Posted May 27, 2006 - 08:42 PM


the yz pipe is a fantastic cheap upgrade for the wr.

Good power and sound...at a fraction of the price of an aftermarket.

  • MountainMax

Posted May 28, 2006 - 04:12 AM


Yeah, and if needed i guess it can work with the fmf header pipes too if you wanted to spend 1/2 the money on upgrading.


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