Omni Power replacement tachometers are unique because they fit directly into the factory cluster and require no wiring or custom mounting. This feature allows the vehicle to retain a factory look, with a more accurate and higher RPM capability. Omni Power developed their own software in house to run the modern digital gear driven stepper motor. This was crucial to ensure that the tachometer is accurate and has fast enough movement to keep up with highly responsive high revving engines. Omni Power uses the same digital gear driven stepper motor as Porsche and other exotic automobiles use. The OEM Honda EF, EG, EK and DC tachometer is not accurate. Typically they read about 200-600 RPM fast at engine speeds above 7000 RPM. Omni Power developed a special monitoring software that ensures that their tachometer will be incredibly accurate at all RPM speeds. Each tachometer is manufactured in the USA. Assembly, programming and testing are done in house, to ensure the highest level of quality.