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Hi everyone, did anyone go on a dyno after they change the exhaust for a Yosh, do the 3X3+a less restritive air filter and change the jetting.
And how many HP did you get.

Thanks!
 

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Should be about a 4 HP gain. Depending on where you were stock, you should be around 38~40 w/ those mods. w/ a sound engine (no issues). An FCR-MX will push you over the 40 HP hump. The biggest improvements from those modification you listed are throttle response, quicker revving, and it just makes the bike a lot more enjoyable to ride.
 
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