ARacer RCmini XX is a Complete engine management system that allows you to make all adjustments via wifi to your smartphone/tablet. Pair this up with the correct fuel injector size and you could easily tune your engine to run. Tuning could be done on a dyno (highly recommended) or safely on a backroad/street using a wideband o2 gauge and sensor with the autotune function. Optional AF3 option is available and recommended to be used with the RCmini XX to have the ECU Auto-Tune. Does not work on European, Japanese or Korean spec bikes. RC Mini X ECU Hardware Features: A quicker 4-core, dual MCU computing speed processor (25% increase over MiniX!) Built-in wifi connectivity with 360-degree antenna (20% connection strength) Redesigned external wiring which allows direct connection to AF3 module and/or quick-shifter RC MiniX ECU Software Features: Improved AutoTune fuel adjustments and feedback with the use of the AF3 Each ECU has an exclusive ID, which the users can pay by credit card online to unlock special add-on options WiFi connection allows for Laptop or SmartPhone connection QuickBurn (Flash) is shortened by 200% (less than 60 seconds) RC Mini XX Function Features: TCS traction function The original factory is not equipped with TCS, and it can be easily started in the rainy and slippery state after it is turned on The original factory is equipped with TCS, which can provide 3 stages adjustable 3rd segment original narrowband O2 sensor fuel correction Adjustable fuel injection timing Response Button power response MAP adjustment → After the upgrade, open and hide the 3 target air-fuel & ignition angle diagrams Guided idle speed setting Guided quick discharge trigger pressure setting New style Backfire/Idle loop control New analysis tools RCmini X ECU Brand-new 4-core, dual MCU, the computing speed is increased by 25% 20x17 (RPM x TPS%) fuel adjustment 20x9 (RPM x TPS%) ignition angle adjustment (pay to open another 2 MAP) Manifold Air Pressure base for inlet air amount calculation Environment temp and Baro compensation available Increase Rev Limit. Pit Limit. Increase almost 10% above power after calibration (depend on engine model) Easy plugin (remove stock ECU and install RC1 ECU without any harness modified) Same connector as stock ECU RCmini 5 ECU meet IP67 specs Support Auto-Tune with aRacer AF3 wideband sensor module Built-in Wi-Fi and 360-degree antenna design (no additional wiring required), the connection signal strength is increased by 20%