bootmod3 BM3 BMW B48/B46 2.0T ECU Tuning Software Licence – OBD Flash Remap/Programming + FREE ENET Cable | F/G Series 120i 125i 220i 230i 320i 330i 420i 430i 520i 530i X3 X4 20i 30i | Stage 1/2 E30 DME Map Switching | Supports 330e & Mini Cooper S F56

bootmod3 BM3 B48 B46 Performance Software Licence with FREE ENET OBD Ethernet Lead

Transform your turbo petrol four‑cylinder with a proven calibration platform that delivers serious results. This activation licence unlocks flash-at-home engine control programming for F-Chassis and G-Chassis 20i and 30i models, including 120i, 125i, 220i, 230i, 320i, 330i, 420i, 430i, 520i, 530i, X3 20i 30i, X4 20i 30i, plus 330e plug‑in hybrid and Mini Cooper S F56. Expect sharper throttle response, stronger midrange punch and smooth OEM-like drivability with dyno-validated Stage 1 and Stage 2 calibrations. We run this software on our own cars and our customers love the repeatable gains and reliability.

Included — BM3 licence for the B48 and B46 platform plus a FREE ENET OBD to Ethernet cable so you can flash via the diagnostic port using a laptop or the iOS and Android apps.

Reasons enthusiasts choose this tuning solution

• OBD port flashing in minutes for most vehicles. No ECU removal on the majority of cars
• In-app map switching. Move between stock, Stage 1, Stage 2 and E30 ethanol blend calibrations
• One OTS map included with your licence, with optional bundles for wider coverage
• Excellent gains on 20i and 30i engines while retaining smooth road manners
• Cloud tools for datalogging, live dashboards, diagnostics and fault code clearing
• Adjustable burbles, cold-start noise reduction, exhaust valve control and more

Expected gains for B48 and B46 engines

20i models

• Stage 1 91 octane: up to 42 percent HP and 46 percent TQ
• Stage 1 93 octane: up to 46 percent HP and 48 percent TQ
• Stage 1 E30: up to 53 percent HP and 50 percent TQ
• Stage 2 91 octane: up to 50 percent HP and 48 percent TQ
• Stage 2 93 octane: up to 54 percent HP and 50 percent TQ
• Stage 2 E30: up to 60 percent HP and 55 percent TQ

30i models

• Stage 1 91 octane: up to 14 percent HP and 26 percent TQ
• Stage 1 93 octane: up to 16 percent HP and 26 percent TQ
• Stage 1 E30: up to 20 percent HP and 28 percent TQ
• Stage 2 91 octane: up to 16 percent HP and 28 percent TQ
• Stage 2 93 octane: up to 18 percent HP and 28 percent TQ
• Stage 2 E30: up to 22 percent HP and 30 percent TQ

AGG aggressive burble calibrations available.

Feature highlights

• Mobile app on iOS and Android plus a web portal
• One OTS calibration included as standard
• Log hundreds of channels with easy sharing
• Cloud storage for maps and logs
• Revert to stock software and re-lock the DME to factory programming
• Live Dash real-time gauges and monitoring
• Full-system diagnostics. Read and clear fault codes across modules
• Reset learned adaptations including octane, knock and Valvetronic
• ECU power reset functionality
• Optional OTS Map Bundle for access to the full library
• Optional custom tuning via the bootmod3 Tuner Directory or self-tuning with the built-in editor

Available map options and calibrations on the platform

• Top speed limiter removal
• Exhaust burble control on any map
• Exhaust valve operation control
• Cold start catalyst heating delete for quieter starts
• Catalyst efficiency check removal for de-cat downpipes. Off-road use only
• Support for upgraded turbochargers
• E85, race fuel and methanol injection strategies
• Custom throttle mapping

Compatibility overview

For BMW and Mini vehicles with B48 and B46 engines, including but not limited to:

• 2016–2019 F20 F21 120i 125i
• 2016–present F22 F23 220i 230i
• 2016–2019 F30 F31 F34 320i 330i including 330e
• 2016–present F32 F33 420i 430i
• 2016–present F36 420i 430i
• 2017–present G30 G31 520i 530i
• 2017–present G01 X3 20i 30i
• 2018–present G02 X4 20i 30i
• 2019–current G20 320i 330i
• 2019–current G30 520i 530i
• 2019–current G01 G02 X3 X4 20i 25i 30i
• 2019–current G05 X5 30i
• 2019–current G11 G12 730i
• 2016–current F56 Mini Cooper S

Important notes

• Some cars built from March 2019 onward, or vehicles updated with later 2019 plus software, may require a bench unlock prior to OBD flashing
• If a bench unlock is needed we can arrange it. Contact us for details

What is in the box

• BM3 licence for B48 and B46 engines
• One OTS map included
• FREE ENET OBD to Ethernet cable

Requirements and options

• ENET OBD lead required. Included free with this licence
• Laptop with internet access or the bootmod3 iOS and Android app
• Optional bootmod3 OBD WiFi Agent for cable-free flashing. Not required

Installation and support

Flash through the OBD port in minutes. DME removal is not required for most cars. Vehicles with certain 2019 plus software may need a bench unlock before the first flash.

Prefer expert setup. Book professional installation, datalog review and tailored advice at MJ modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Trusted by enthusiasts

We use this software on our own B48 and B46 development cars and have installed it for many customers. Feedback is consistently positive. Expect stronger torque where you use it most, crisp throttle, refined part-throttle manners and a big step up in performance.

Legal and warranty disclaimer

Some calibrations and hardware combinations may not be legal for road use. Installation and use can affect manufacturer warranty coverage. Off-road use only where applicable.

Part number

BM3-B48

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