Can tune engine fuel delivery in specific ranges, check rpm, read fuel injector pulse width and duty cycle, and add or remove fuel in low- or mid-range rpm PowrPro analyzes, tunes and adjusts your air/fuel ratio for peak performance instantaneously Can fine-tune the non-acceleration air/fuel curves using the Bluetooth« app Works with stock or modified engines, air cleaners and exhaust systems Tunes acceleration fuel delivery in every gear for peak performance Requires no dyno-tuning û plug it in and ride. FI2000R PP BLK DYNA 08-11