Rossier R5 Install on 2021 YFZ450R. SOUNDS AMAZING!

Installing and comparing a Rossier R5 to the Stock Exhaust
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Mods:
Vortex X10 ECU
FCI intake w/ box
13T Front Sprocket
Precision Pro Elite Steering Stabilizer
38 Motorosports AIS Block-off Plate
38 Motorsports Oil Breather
Links:
rossiereng.com
38motorsports.com
www.rockymount...