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MountainMax

YZ muffler VS Aftermarket one ??

8 posts in this topic

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?

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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.

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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.

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

Thanks,

Brian

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

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

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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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