UltraCuttr is a lightweight, file-based RPM limiter editor.
It is designed to work offline on ECU dump/tuning files: you load a file, select the vehicle manufacturer, review the detected RPM limiter setpoint, enter a new setpoint, and save a modified copy.



What this tool is for

• Read the current RPM cut setpoint from a supported ECU file (where supported).
• Write a new RPM cut / rev limiter setpoint into the same file structure.
• Create a clean “edit-and-save” workflow for quick limiter adjustments without digging through maps manually.
• Useful as a small helper utility alongside your main editor/flashing setup (WinOLS, etc.).

How it works (typical workflow)

1. Load File → pick your ECU dump (ORI/MOD/ BIN-type file).
2. Select Vehicle Manufacturer → choose the manufacturer in the dropdown.
3. Review Current RPM Setpoint → the tool shows the current detected value (when supported).
4. Enter New RPM Setpoint → type the new limiter target.
5. Save File → export a modified file for flashing with your preferred tool.

Interface overview

• MAIN — file loading, manufacturer selection, current/new RPM setpoints, and a summary panel.
• ECU COVERAGE — built-in coverage list (use it to confirm your ECU is supported before editing).
• OPTIONS — UI customization (skin/background) and save-location selection for exports.
• ABOUT — author/build info plus an important safety warning about ECU writing.

Safety & flashing notes (read this)

• Always keep an original backup of your file before any changes.
• A failed or incorrect write can cause ECU corruption (“bricking”). Use stable power and safe procedures.
• Your flashing method/tool must be able to correct/check checksum after changes.
• The safest method for writing modified files is typically bench (depends on ECU/platform).
• For off-road/track use where applicable; you are responsible for legal compliance in your region.

Package contents

• UltraCuttr.exe
• ultracuttr.txt

Read-only compliance note

This resource is provided for personal/archival use and informational purposes.
No activation-bypass guidance is included. Use at your own risk.

---