GhostTune
I want the iPhone / iPad tuning app.
Open GhostTune on the App Store for the currently verified MicroSquirt / MS2/Extra 3.4.4 workflow.
// Support
Direct product and compatibility support.
Questions about GhostTune, GhostBridge serial connectivity, device compatibility, custom firmware, ordering, privacy, or an unexpected result are handled directly by Crux Resolve LLC.
// Choose the fastest next step
Ready to buy, ready for the app, or still checking compatibility?
Use the direct path that matches where you are now. If you are not sure a serial device fits GB-01, check it before ordering.
GhostBridge
I need a local WiFi-to-RS232 bridge.
Go directly to secure checkout for GhostBridge GB-01 after confirming your serial requirements.
Compatibility review
I am not sure my serial device fits.
Send the manufacturer, model, interface details, and host software before you order.
General and technical support
support@cruxresolve.com
Product questions, GhostBridge compatibility checks, GhostTune support, setup assistance, bug reports, and order support.
Email supportDevice compatibility
Have an RS232 device?
Send the manufacturer, model, interface details, serial settings, and host software through the structured GhostBridge compatibility request.
Check a deviceOEM and custom firmware
Application-specific serial connectivity
For repeat deployments, custom firmware behavior, application-specific defaults, or integration review, use the OEM serial-solutions inquiry.
OEM / custom firmwarePrivacy and data requests
support@cruxresolve.com
Privacy questions, notification-list removal, and requests concerning information submitted to Crux Resolve LLC.
Email support// Frequently asked questions
Common answers
Can GhostBridge be used without GhostTune?
Yes. GhostBridge is a transparent local TCP-to-RS232 byte relay and is not software-locked to GhostTune. The current GB-01 is intended for compatible standard 3-wire RS232 equipment using TX, RX, and ground.
What RS232 signals does GhostBridge provide?
The current GB-01 uses DB9 pin 2 for RX into GhostBridge, pin 3 for TX out of GhostBridge, and pin 5 for ground. RTS/CTS and other modem-control lines are not routed on the current production hardware.
Does GhostBridge require internet access?
No. GhostBridge creates its own local WiFi access point, so a compatible client can connect directly without a router, cloud service, or internet connection.
Does every DB9 device work with GhostBridge?
No. A DB9 connector alone does not establish compatibility. The device must use compatible RS232 signaling, pinout, serial settings, timing behavior, cabling, and host software.
Do you offer custom GhostBridge firmware?
Crux Resolve can evaluate application-specific firmware behavior, serial/network defaults, repeat deployments, and OEM integration needs case by case. See Custom & OEM Serial Solutions.
What GhostBridge application is verified?
The currently published verified automotive application is GhostTune with MicroSquirt hardware running MS2/Extra 3.4.4. That verified use does not make the underlying GB-01 transport ECU-specific.
What ECUs does GhostTune support?
The current release is verified with MicroSquirt hardware running MS2/Extra 3.4.4. Only ECU configurations explicitly listed by Crux Resolve should be treated as supported.
How does GhostTune connect to the ECU?
GhostTune connects over local WiFi through a compatible WiFi-to-RS232 bridge. GhostBridge GB-01 is the assembled hardware designed and verified for the published GhostTune workflow.
Is tune data sent to the cloud?
No. ECU communication and tune data stay on the device and local WiFi link unless the user deliberately exports or shares a file.
Is GhostTune available now?
Yes. GhostTune v1.0 is available on the App Store for $35 USD.
How do I report a problem?
Email support@cruxresolve.com with the product or device model, operating-system version, firmware version if relevant, what you expected, and what occurred. Screenshots, logs, or a short screen recording can help when appropriate.
Where can I buy GhostBridge?
GhostBridge GB-01 assembled units are available now for $50 through the GhostBridge product page, subject to current stock and the published fulfillment window.
ECU tuning safety: GhostTune is intended for technically capable users. Incorrect ECU changes can damage engines, ECUs, or related equipment. Maintain a known-good backup and use the application only in a safe environment.