This plug-and-play Bluetooth module connects a Terminator X or Terminator X Max ECU to an iOS or Android smartphone for wireless tuning and real-time engine monitoring. It can be used by itself or alongside Holley digital dashes. Tablets are not supported at this time.
Key Features:
- Wireless connection to a Terminator X or X Max ECU
- Works with iOS and Android smartphones
- Built-in Terminator X EFI wizard, basic tuning, advanced tuning, input/output control and a customizable data monitor
- Make basic or advanced tuning changes, adjust rev limiter RPM or idle settings without a laptop
- Live dash display mode turns the phone into a digital dash, using the phone accelerometer to show vehicle speed
- Mizu-style CANbus connector for a secure installation
- Browse Holley EFI parts and access technical documents and installation articles from the app
Specifications:
- Compatibility: Terminator X and Terminator X Max systems
- Interface: Bluetooth, iOS and Android smartphones (tablets not supported)
- Connector: Mizu-style CANbus
- Finish: Black
- Availability: USA and Canada only
- Part Number: 558-483
Used with Terminator X and Terminator X Max systems. Available only in the USA and Canada.
FAQ
Which systems does the Bluetooth module work with?
Terminator X and Terminator X Max EFI systems.
Does it work with a tablet?
No. Holley lists iOS and Android smartphones only; tablets are not supported at this time.
Can I use it with a Holley dash?
Yes. It can be used by itself or together with Holley digital dashes.
Where is it available?
Holley states it is only available in the USA and Canada.

