bootmod3 BM3 MINI B46/B48 ECU Flash Remap & Tune Licence for F54 F55 F56 F57 F60 Cooper S & JCW | Stage 1/2 OTS Maps | FREE ENET OBD Cable – Clubman, Hatch, Convertible, Countryman

MINI B46 B48 engine management tuning licence with free Ethernet OBD lead for F54 F55 F56 F57 F60 Cooper S and John Cooper Works

Turn your F-series MINI into the car it should have been from the factory. This engine control software licence delivers a slick, plug-in calibration upgrade for B46 and B48-powered models, adding serious punch, crisper throttle mapping, faster turbo response and a wider, stronger torque band. Ideal for F54 Clubman, F55 5-door, F56 hatchback, F57 cabriolet and F60 Countryman, including JCW variants.

Supplied with a free ENET OBD2 cable, you can programme over the diagnostic port using a laptop or the official mobile app. Switch between stock and performance maps, adjust exhaust overrun behaviour, datalog hundreds of channels, view live gauges and return to factory software whenever you like. We run this software on our own cars and our customers consistently report transformative, reliable gains with daily-drive refinement.

Highlights at a glance

• Rapid OBD flash programming at home using the included Ethernet to OBD lead
• Cloud-connected platform with iOS, Android and web access
• One off-the-shelf calibration included, with further map options available in-app
• Datalogging, fault code read and clear, and real-time sensor dashboards
• Fully reversible to factory calibration at any time
• Support for custom tuning and advanced map editing for bigger hardware builds

Real-world power on B48 engines

Choose Stage 1 or Stage 2 to suit your fuel quality and hardware. Results vary by compression variant:

B48-H high compression

• Stage 1 ACN91: up to 30 percent HP and 32 percent torque
• Stage 1 91 octane: up to 40 percent HP and 43 percent torque
• Stage 1 93 octane: up to 42 percent HP and 44 percent torque
• Stage 2 ACN91: up to 45 percent HP and 46 percent torque
• Stage 2 91 octane: up to 50 percent HP and 48 percent torque
• Stage 2 93 octane: up to 54 percent HP and 50 percent torque

B48-L low compression

• Stage 1 ACN91: up to 10 percent HP and 13 percent torque
• Stage 1 91 octane: up to 12 percent HP and 15 percent torque
• Stage 1 93 octane: up to 14 percent HP and 16 percent torque
• Stage 2 ACN91: up to 15 percent HP and 16 percent torque
• Stage 2 91 octane: up to 19 percent HP and 18 percent torque
• Stage 2 93 octane: up to 22 percent HP and 20 percent torque

Driver-focused features

• Mobile and desktop flashing on iOS, Android, Windows and macOS
• High-speed logs across hundreds of parameters with easy sharing
• Secure cloud storage for maps and data
• Scan and clear DTCs across vehicle modules
• Live dashboard for boost, ignition, fuel trims, IATs and more
• Reset learned adaptations including octane and Valvetronic
• ECU power cycle function
• Optional calibrations for 91, 93, race fuel and E85 where applicable
• Access to pro tuners or self-tune via the built-in editor

Popular map options and adjustments

• Adjustable exhaust burble on overrun
• Reduced cold-start catalyst heating for quieter morning starts
• Cat efficiency check removal for de-cat downpipes for off-road use
• Sport mode exhaust valve behaviour tweaks
• Top speed limiter removal
• Boost by gear management for traction
• Recalibrated Sport display
• Compatibility with E blends, race fuel and meth injection where supported

Vehicle coverage

MINI equipped with B46 or B48 petrol engines:

• F54 Clubman 2015 to 2019 including JCW
• F55 five-door 2014 to 2019
• F56 three-door hatch 2014 to 2019 including JCW
• F57 Convertible 2014 to 2019 including JCW
• F60 Countryman 2015 to 2019 including JCW

Note on ECU security updates

• Certain 2019-on software updates may require a one-time bench unlock prior to OBD flashing. Cars updated by a dealer to newer software can also be affected.

What is included

• Tuning licence and account access
• Free ENET OBD2 cable for fast, reliable flashing
• Online portal and app access
• Optional WiFi Agent available separately if you prefer cable-free operation

Install and support

Most vehicles programme through the OBD port in minutes without removing the DME. If your car is on later 2019+ software, a bench unlock may be required once.

Want it handled for you We offer professional installation, bench unlock support and aftercare. MJ Modifications is based in Warwickshire. Request a fitting or unlock quote at info@mjmodifications.co.uk.

Why buy from MJ Modifications

• We use this software on our own MINIs and have many satisfied Cooper S and JCW customers
• Genuine licences and UK-based advice for F-series MINI performance upgrades
• Friendly aftersales support for flashing, datalog review and map selection

Part number

BM3-B48-MINI

Warranty and emissions

Performance software may affect manufacturer warranty. Certain functions are for off-road or motorsport use only where permitted. Always comply with local laws and emissions regulations.