ECU tuning for Nissan & Infiniti

Tune your Nissan like it's this decade.

Log a drive and let Claude scan it for you: it flags lean and rich cells and suggests the fix. Switch between three tunes from the driver's seat (on select models), raise your limits, and flash it all in a few clicks.

  • AI-assisted scanning
  • Custom patches (select models)
  • Rev & speed limits
  • Works with a standard K-line cable
VQLab · fuga_450gt_stage1.bin · EH20D
High Octane Ignition Timing MapFuel Target
RPM3200
Load68.75%
Timing62
Logger● LIVE
AI-assisted scanning

Claude scans your logs and tells you what to fix.

Log a drive and let Claude go through it with you. It checks every map cell you drove through against your targets, flags what's lean, rich or out of place, and explains it in plain English. Then it suggests the change.

  • Scans whole logs in seconds, cell by cell
  • Flags lean and rich spots and explains why
  • Suggests changes as normal undo steps you review
  • Never saves or flashes anything. You stay in charge
ClaudeScanning drive log…0%

Illustration with sample data

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8 cells running lean at full load4,000–6,400 rpm at the highest load is up to 1 AFR leaner than target. Suggest +4% fuel.
Idle slightly richTwo cells near idle are 0.5 AFR rich. Optional: −2% fuel.
Everything else is on target46 of 56 driven cells are within ±0.2 AFR.
How it works

From stock to tuned in three steps.

  1. 01

    Back up

    Plug in a ~$10 K-line cable and read your stock ROM. Free with Lite, and the first thing you should do.

  2. 02

    Tune

    Edit maps on a heatmap, set up three switchable tunes, and check your logs cell by cell.

  3. 03

    Flash

    Write only what changed, verified at every step. Seconds, not a full reflash.

Supported vehicles

9 car generations. 19 ECU versions.

From the firmware-decoded Fuga to the Skyline, 370Z and GT-R.

See all supported cars and ECU IDs →

VQLab Pro

Everything unlocked for $350 NZD.

Launch price, normally $400. One-off payment, 5 cars included, custom patches on select models. Lite is free forever.

Your ECU has more to give.

Back up your ROM and explore every map for free, today.