Description
TuneZilla B58 3.0 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: 326 hp / 322 lb-ft at the crank. TuneZilla lists more than one factory baseline for this engine — the split is in the fuel breakdown below, so check which one matches your car before reading the gains.
- Stage 1 — 400 hp / 420 lb-ft at the crank (+74 hp / +98 lb-ft over stock)
- Stage 2 — 420 hp / 455 lb-ft at the crank (+94 hp / +133 lb-ft over stock)
Figures by fuel:
- Stock — Stock ( B58 Gen 1 ) 326 hp / 322 lb-ft at the crank; Stock ( B58 Gen 2 ) 340 hp / 332 lb-ft at the crank
- Stage 1 — Stage 1 ( B58 Gen 1 ) 395 hp / 420 lb-ft at the crank; Stage 1 ( B58 Gen 2 ) 400 hp / 420 lb-ft at the crank
- Stage 2 — Stage 2 ( B58 Gen 1 ) 415 hp / 450 lb-ft at the crank; Stage 2 ( B58 Gen 2 ) 420 hp / 455 lb-ft at the crank
The figure quoted for each tune above is the best of these; what your car makes depends on the fuel you run, your hardware and ambient conditions.
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 — $865.56 CAD
- Stage 2 — $1,010.06 CAD
Fuel & Hardware Requirements:
- Stage 1 — 93 Octane Required; Intake and Upgraded Charge Pipes Recommended
- Stage 2 — Performance Downpipe Required; 93 Octane Required; Intake, Upgraded Heat Exchanger and Charge Pipes Recommended
Fitment:
- BMW 640i B58 3.0 2016-2019
- BMW 540I B58 3.0 2015-2022
- BMW 740i B58 3.0 2015-2022
- BMW M240i B58 3.0 2015-2022
- BMW M340i B58 3.0 2015-2022
- BMW M440i B58 3.0 2015-2022
- BMW 840I B58 3.0 2015-2022
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.
