I currently have a FMF Gold Series Fatty Pipe w/ PowerCore II Silencer, Boyeson ProSeries Reeds, Airbox vents, and UNI air filter on my blaster and Im also planning on purchasing a reed spacer. I would like to know what I could do to get more Hp and top end. My friend races motorcross and he said that if i cut down the silencer it will increase my top end speed, is this true?

 

Get it ported or a 240 kit. or a 28mm carb.

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Garrett Lowman; CT240 Blaster, YZ490