O2 Sensor Eliminator - Royal Enfield Bullet Classic Electra 500 Oxygen Delete This won't affect the fit

This won't affect the fit of the stock signals

2011-13 MONSTER 1100 EVO/S

This has been verified on the dyno and road under controlled conditions

ADDED THROTTLE RESPONSE OF YOUR BIKE

O2 Sensor Eliminator - Royal Enfield Bullet Classic Electra 500 Oxygen Delete This won't affect the fitO2 SENSOR ELIMINATOR An O2 sensor is an electronic device located in your exhaust system & is there to determine if the air fuel ratio of your engine is rich or lean. The O2 sensors in motorcycles are designed to keep things within emission standards & in certain throttle positions will lean or enrich the mixture to alter the air fuel ratio. This is good for emissions but not for maximum performance & smooth running. Disabling the O2 sensor s will