KOSO NORTH AMERICA Mini 3 Air/Fuel Ratio Meter - For 4-Stroke Engines BA003211 High Flow Air Filter Fitment: Yamaha R1 2009-2014

Fitment: Yamaha R1 2009-2014

Gains of 5-7 hp can be achieved with these parts (up to 25 with the Graves full exhaust system

Graves Motorsports Aprilia RSV4 Cat Eliminator Exhaust System for the 2019-2020 model RSV4 FACTORY (see separate listing for 17-20 non Factory models)

Dual exhaust gas temperature sensor

10% increase in horsepower and torque with this exhaust when tuned (we suggest the FTEcu tuning kit)

KOSO NORTH AMERICA Mini 3 Air/Fuel Ratio Meter - For 4-Stroke Engines BA003211 High Flow Air Filter Fitment: Yamaha R1 2009-2014Allows you to monitor and adjust air fuel mixture for more power and peak performance Specially designed to help tune carbureted or fuel injected 4 stroke engines Easy installation to 12V systems by connecting the sensor to the exhaust system