aRacer X Tune
aRacer X Tune is made and published by ARACER SPEEDTEK INC. AppBrain is an independent app data site and isn't affiliated with ARACER SPEEDTEK INC. The app name, icon, screenshots and description belong to ARACER SPEEDTEK INC. and are shown as published on the App Store.
AppBrain's verdict
- Rating on App Store
- 2.88
- 17 ratings
- Last updated
- June 10, 2026
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Releases
Updates seen on the App Store- Version
- v3.2.17
- Launched
- December 2021
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 120.0 MB
- Content rating
- Everyone
Technologies used by aRacer X Tune
About the app and developer
About aRacer X Tune
aRacer X Tune is an utilities app developed by ARACER SPEEDTEK INC.
User Ratings
aRacer X Tune is rated 2.88 out of 5 stars. The rating is based on 17 ratings.
App Information
aRacer X Tune is freely available from the App Store. The app size is 119.95 MB. The latest version available is v3.2.17. The last update was on June 10, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since December 2021.
Developer information for ARACER SPEEDTEK INC.
Address:
Store listing
By ARACER SPEEDTEK INC., from the App StoreDescription by ARACER SPEEDTEK INC. Written by the developer, not by AppBrain. Click to read.
X Tune has more powerful built-in functions including (depending on different sales countries and regions, related functions need to be paid to turn on):
# More powerful adjustment functions:
1. 20x17 (RPM x TPS%) fuel adjustment
2. 20x9 (RPM x TPS%) ignition timing adjustment (paid to upgrade can enable switching of 3 ignition timing MAP)
3. 20x9 (RPM x TPS%) target air-fuel ratio setting (paid to upgrade can enable switching of 3 target air-fuel ratio MAP)
# More powerful AT automatic adjustment function and more accurate & fast actual A/F data feedback through AF2 / AF1:
1. Correct the fuel value% & A/F value in time and record it in the 20x17 fuel MAP
2. The corrected result can be used as a base fuel MAP
# New features:
1. TCS tracking functions:
# The stock is not equipped with TCS, and it can be easily work in rainy and slippery conditions after starting
# The stock is equipped with TCS, can provide 3 levels adjustable
2. 3 levels of fuel correction in stock narrowband O2 sensor
Adjustable injection phase
3. Response Button for power response adjustment. After the upgrade, you can switch 3 target air-fuel & ignition timing MAPs in time
4. Guided idle speed setting
5. Guided quick shift triggered pressure setting
6. New style Backfire / Idle lope control
7. New analysis tools
# Notes:
1. X Tune is only suitable for safe and closed road track, and don’t allow to be used in public road!!
2. After paying to turn on the ECU functions, no refund can be made, because the function has been turned-on in the ECU! Before paying, you can use the trial function to confirm the applicability!
3. The adjustment function may damage the engine, please find a qualified professional technician to adjust it and it is not suitable for general users! Any adjustment causes engine damage and dangerous accidents, the company cannot provide any compensation!
About the details, please refer to: https://www.aracer-speedtek.com/product_d.php?lang=tw&tb=1&id=1770