O2 Sensor Eliminators Harley Davidson 2007 - 2013 Sportster 2006 - 2009 Touring '03-20 CBR600RR

'03-20 CBR600RR

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Hyperstrada 821 / SP

2017-20  450 EXC / -F

O2 Sensor Eliminators Harley Davidson 2007 - 2013 Sportster 2006 - 2009 Touring '03-20 CBR600RR2 x O2 SENSOR ELIMINATORS O2 sensors are an electronic device located inside your exhaust system and 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 and in certain throttle positions will lean or enrich the mixture to alter the stoichiometric air fuel ratio. This is good for emissions but not for maximum performance & smooth running.