For those who wish to tune the EFI models to optimum performance we have assisted Dynojet UK in development of their popular Power Commander units specifically for the Scrambler, America & Speedmaster twins.The Mk5 unit is easily fitted and supplied pre-programmed to give your bike optimum fuel metering and performance. Particularly useful if you have other performance parts fitted such as our silencers, bellmouth etc. Unlike other types of “re-mapping” the Power Commander does not make any permanent changes so on removal the system is returned to it’s previous stock condition. Fits Scrambler, Speedmaster & America models 2009 on. For 2008 models see HBK395