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big gun rev box

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Hello new friends long time drz rider 13,700 miles and running strong. I'm starting to do some performance mods. I have a slip on fmf and the jet kit is on it's way I have to adjust for higher elavation. Is the rev box worth it and what about the air box mod?

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no ... the rev box is not worth it

yes ... give the motor fuel and air to suit your elevation

you could raise the compression ratio and refresh the cylinder head , do the loctite fixes and fit the MCCT . check the cam chain for wear

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