Dynojet 20-016 Power Commander V Fuel Injection Module (PCV) Suzuki M109R / C109R 2006-2018 Fuel control for each individual cylinder in a smaller enclosure Warm-up fuel adjustment (unit reads engine temp and allows fuel/ timing adjustments based on the reading) Reduced size from the PCIII USB Easy to install USB powered from computer; 9 volt adapter is no longer needed