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  1. Exhaust & Fuel Delivery
    2008 CBR600RR with a custom fuel map, no cat, slip on w/straight mid pipe. My bike does not have an O2 sensor on the exhaust, therefore, I do not believe the ECU is compensating for the thinner air at altitude. To clarify, this bike is dialed in 100% at sea level where I live, but when riding in...
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