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aRacer RC Mini X Standalone ECU for 2014-2021 Honda Grom


ARacer RCmini X is a Complete engine management system  that allows you to make all adjustments via wifi to your smart phone/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 AF2 option is available and recommended to be used with the RCmini X to have the ECU Auto Tune.   RCmini X ECU 

  1. Brand-new 4-core MCU, the computing speed is increased by 200%
  2. 20x17 (RPM x TPS%) fuel adjustment
  3. 20x9 (RPM x TPS%) ignition angle adjustment (pay to open another 2 MAP)
  4. Manifold Air Pressure base for inlet air amount calculation
  5. Environment temp and Baro compensation available
  6. Increase Rev Limit. Pit Limit.
  7. Increase almost 10% above power after calibration (depend on engine model)
  8. Easy plugin (remove stock ECU and install RC1 ECU without any harness modified)
  9. Same connector as stock ECU
  10. RCmini 5 ECU meet IP67 specs
  11. Support Auto-Tune with aRacer AF2 wideband sensor module
  12. Built-in Wi-Fi and 360-degree antenna design (no additional wiring required), the connection signal strength is increased by 20%

The AF2 module module can be found HERE.


Customer Reviews

Based on 3 reviews
Kevin Russell
Must have

If you want to tune your bike then this is what you need.

Evan Bradford

DO NOT BUY THIS WITHOUT AF2 or AF1unless you know what your doing with all the tuning if your not sure on how to tune BUY THE AF2 wideband sensor so you can auto tune it if you dont know how to tune or don’t have someone to dyno or tune it get the af2 complete plug and play super simple also buy the app that cost money the free one is bad. this ecu with the wideband is awesome so cool to mess with the features and definitely unlocked power that the stock ecu wasn’t giving me 100% will put on all my bikes!

adam roman

I currently have four bikes running aracer.
Worth the money 💴
Especially if you’re a person who its the track in Likes to rune their bike