Cobra Fi2000 PowrPro with CVT Technology 692-1629AT Continuously Variable Tuning (CVT) is the key to the remarkable performance the Fi2000 PowrPro delivers PowrPro uses electronic control technology that calculates the bikes rate of acceleration by reading crankshaft rotation at the flywheel and changes in load just as a dynamometer measures acceleration at the rear wheel PowrPro measures and adjusts fuel flow during acceleration to the injectors in microseconds for super-fast fuel tuningcontinuously and automatically; net result: precise EFI tuning now happens in the real world in real time, nonstop, up to 80 times per second New patented technology unlike any other system on the market PowrPro tunes to precise air-fuel mixture to create maximum power 80 times per second (does not tune to a predetermined arbitrary AFR)