Description
TuneZilla 4.4L N62B44 ECU Tuning for BMW
Available through United Performance
TuneZilla calibrations are flashed through your vehicle’s OBD port with a FlashZilla device: read your factory file, download your chosen tune from the InstaTune server, and write it in. Switching between tunes or back to stock later uses the same tool.
Power & Torque
Factory baseline on TuneZilla’s dyno: 319 hp / 325 lb-ft at the crank.
- Stage 1 — 344 hp / 340 lb-ft at the crank (+25 hp / +15 lb-ft over stock)
All figures are TuneZilla’s own published dyno results, not a United Performance measurement, and are indicative rather than guaranteed.
Available ECU Tunes:
- Stage 1 — $793.31 CAD
Fuel & Hardware Requirements:
- Stage 1 — 93 Octane / 98 RON Required
Add-Ons (bundled pricing):
- Emissions Deletes — Remove Intake flap, SAI, EVAP, Cat and/or Rear O2 (add $143.06 CAD)
Fitment:
- BMW 745I LI 4.4L N62B44 2001-2004
- BMW 545i 4.4L N62B44 2004-2005
- BMW 645CI 4.4L N62B44 2004-2005
- BMW X5 4.4L N62B44 2004-2006
FlashZilla tool — the flashing device is required to load any of these files. Add it to your order from the FlashZilla Tool option above for $205.00 CAD; if you already own one, leave it set to No and only the software is supplied.
The tune itself is delivered as a software file for your own FlashZilla device — no parts ship unless you add the tool.
