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McD23

exhaust header

2 posts in this topic

Hi all

I have a 08 wr450 with fmf powercore4 slip-on currently.

Can get a yz header, will this fit this set up, and will it make any gains over stock wr header?

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I have FMF powercore 4 with YZ powerbomb header on my '07 WR, fits perfect, no mods required, FMF came with two header rings to fit WR or YZ, as to the gains I haven't got any numbers but larger header should increase top end power

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