I found that gasket did the exact opposite of "reduce noise".
Mine squeaked and made noise if it got even the slightest bit "dry".
Ride it in the rain once, and the next day you'd think the brake pads were worn out dragging due to the noise.
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2008 WR250X
Gearing: 13t - 48t
Power Commander 5 / PC-V
Airbox Door Removed - Flapper glued - AIS removed
FmF Q4
Bridgestone Battlax BT-003rs