From the trails to the track, MSD Powersports new Blaster FI fuel and ignition controller delivers unparalleled performance for your YFZ450R &YFZ450X. Select from 10 performance calibrations or create your own custom fuel and ignition curve for any engine configuration. Simply select from 10 different calibrations or connect your PC to the USB port to create your own ignition and fuel map to meet your quad's modifications. The Blaster FI incorporates factory style connectors for a direct plug-in installation on 2009 and newer Yamaha YFZ450. Once connected, you can simply turn a dial to use one of the 10 different calibrations built into the Blaster FI, or connect your laptop and program your own timing and fuel map for any modifications. Program your quad's power with MSD! plug-in the MSD Blaster FI to your ATV and open a new window of performance opportunities! Choose from ten preset dyno tested calibrations or connect your PC and map your own ignition tune set for your application.