Bootmod3 ECU Tune – BMW N55 (M135i / M235i / 335i / 435i / M2 / X-series)
Bootmod3 ECU Tune – BMW N55 (M135i / M235i / 335i / 435i / M2 / X-series) is backordered and will ship as soon as it is back in stock.
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Bootmod3 ECU Tune – BMW N55 (M135i / M235i / 335i / 435i / M2 / X-s...
The Bootmod3 (BM3) ECU Tune transforms your BMW N55 engine into a fully tunable system with advanced flash capabilities. Whether you’re running a daily setup or a race build, Bootmod3 allows you to flash maps, log performance, and switch calibrations through the OBD port in just minutes.
CustomROM Features
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Map Switching (On-the-Fly): Use your steering wheel cruise controls to cycle between up to four unique calibrations without reflashing.
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Flex-Fuel Tuning: Automatically adjusts calibration to ethanol content (0–100%) using a Flex Fuel sensor, with no reflash needed.
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Anti-Lag: Build boost while stationary or rolling to reduce spool time and improve launch or roll performance.
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Integrated Map Editor: Access thousands of tuning tables for fine-grained control.
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High-Rate Datalogging: Log more than 80 RAM channels concurrently with high sample rates.
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Ethanol In-Dash Display: Shows ethanol percentage via the tachometer (e.g. 5500 RPM = 55% ethanol).
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Transmission Torque Limiter Removal: Disables factory torque limits for automatic transmission variants.
Power Gains (OTS Maps — N55 PWG & EWG)
These gains are based on percentage increase over stock and will vary with fuel, supporting mods, and vehicle configuration.
| Variant | Stage | Fuel | HP Gain | TQ Gain |
|---|---|---|---|---|
| N55 PWG | Stage 1 | 91 | +24% | +38% |
| N55 PWG | Stage 1 | 93 | +26% | +38% |
| N55 PWG | Stage 2 | 91 | +28% | +42% |
| N55 PWG | Stage 2 | 93 | +30% | +42% |
| N55 PWG | Stage 2 | E30 | +33% | +45% |
| N55 PWG | Stage 2 | Race Gas | +33% | +45% |
| N55 EWG | Stage 1 | 91 | +25% | +28% |
| N55 EWG | Stage 1 | 93 | +27% | +30% |
| N55 EWG | Stage 2 | 91 | +31% | +34% |
| N55 EWG | Stage 2 | 93 | +33% | +36% |
Aggressive burble (AGG) versions of OTS maps are available.
Supported Vehicles (N55 Engine)
Compatible models, including:
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- 2012-2016 F20/F21 M135i
- 2013-2016 F22/F23 M235i
- 2011-2015 F30/F31 335i
- 2013-2015 F30 ActiveHybrid 3
- 2013-2016 F32/F33/F36 435i
- 2009-2017 F07/F10/F11 535i
- 2011-2018 F06/F12/F13 640i
- 2012-2015 F01 740i
- 2010-2017 F25 X3 xDrive35i
- 2014-2016 F26 X4 xDrive35i
- 2015-2018 F26 X4 M40i
- 2014-2018 F15 X5 xDrive35i
- 2014-2019 F16 X6 xDrive35i
- 2016-2018 F87 M2
Requirements
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Bootmod3 License (sold per VIN) — this is the item being purchased in this listing.
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BM3 WiFi Adapter or OBD ENET cable (sold separately) — required for flashing and datalogging.
Payment & Security
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