PCIII
From LinerWiki
Dynojet Power Commander III (PC III)
The Dynojet PC III is an aftermarket fuel controller for fuel injected vehicles. Maps can be uploaded to the device via USB. The correct part number for the Roadliner/Stratoliner is 417-411.
Please visit the Power Commander website for more information, and their maps:
You may also visit this page for FXStein's custom fuel maps.