Exhaust change
Thank for the cut open pics redbikejohn 
Cannot believe the size & weight of the standard muffler, it'd be at home on a little hatchback car
Now I can see what's in store before I fire up the grinder with a "thin cut off wheel".
I intend to a use standard 2010-11 YZ450 slip on, (sourced at a swap meet over the weekend for $40) modified by shortening 100mm in length & laying over at an angle, trimming the original LHS XTZ heat shield & enlarging the outlet part. The end of the YZ pipe will be rotated from it's original position to suit the heat shield.
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Two wheels keeps you young. Regards. Russ
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