If you are somewhat electrically inclined, you can bypass both the cold air intake & the O2 sensor, by getting the values with an ohm meter, & installing resistors you can trick the ECU into thinking its running leaner & in colder weather than it is. The bike will richen up & you will have more power. Wont be night & day & if you arent used to the machine you likely wont notice it. A fuel "controller" will give you better performance than putting resistors in, but costs wayyyy more. Again...only if you are are somewhat electrically inclined.
Its not for everyone.