This model is for riders in California. It is approved for use and sale in that state and has an EO number of ARB E.O. No. D-633-1. This unit is not adjustable.
First of all it is not adjustable in any way. It does not alter the steady state cruise fuel which is important for emissions testing. But when you open the throttle and begin to accelerate, it then adds the fuel necessary for the motorcycle to accelerate to its potential.
“ NOTE: The ARB Executive Order or exemption is not an endorsement or approval of any emission reduction claims for the catalytic converter and is only a finding that the catalytic converter is exempt from the prohibitions of Vehicle Code section 27156” appears on each page that suggests the device was approved by ARB.