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jjones8505, January 21, 2016 in WR250F/YZ250F/YZ250FX
Spend the money on something else. The stock exhaust is very good.
I like my Fmf on my fx. There is a reason teams and people run FMF. If you want a slip on its your money do it.
Maybe this might help
I have an FMF 4.1 on my bike. Not really worth any power IMO. But it looks awesome, is lighter, and has a spark arrester if you want to ride trails.
I have a Yoshimura RS-4 on mine. Bought it because I needed a spark arrestor, but found out the insert is sold separately.
Like others said, it doesn't do much for power. But I'm happy with it. It's a little lighter and has a less raspy note than the stocker. I think it looks better than the FMF, no stickers on the can that will eventually peel off.
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