Description
Take your BMW S63TU4-powered vehicle to the next level with the MG Flasher Stage 2 Tune. Designed for enthusiasts seeking maximum performance from their modified setup, this calibration is specifically engineered for vehicles equipped with a high-flow downpipe or high-flow catalytic converter.
The Stage 2 calibration delivers substantial horsepower and torque gains by optimizing boost pressure, ignition timing, torque management, and fueling strategies. Power delivery is refined throughout the entire RPM range, eliminating factory power dips while providing stronger acceleration, improved throttle response, and enhanced driving dynamics.
A valid MG Flasher License is required to flash any OTS or Custom Map.
Important Hardware Requirement
Stage 2 calibrations must only be used with:
- High-flow downpipes
- High-flow catalytic converters
Transmission tuning is recommended to achieve the best possible performance and torque management.
ECU Unlock Information
- ECUs manufactured in July 2020 and newer are supported with a bench unlock provided by Femto or AutoTuner.
- The ECU must be shipped to the unlock provider or unlocked by a qualified third-party tuner using appropriate bench tools.
- Recent BMW software updates may require a Bench OBD Unlock before flashing.
- Authorized MG Flasher dealers can perform ECU unlocking services.
- Additional third-party bench unlock fees may apply.
Stage 2 Performance Features
- Increased boost pressure calibration
- Optimized ignition timing strategies
- Lambda optimization
- Torque limiter recalibration
- Enhanced throttle response
- Improved horsepower and torque delivery
- Aggressive performance-oriented calibration
- NBT display horsepower and torque gauge recalibration
- Optimized for xHP transmission tuning software
Adjustable Map Features
Each Stage 2 OTS calibration includes access to available MG Flasher tuning features:
- Adjustable exhaust burble settings
- Switchable map functionality where supported
- Max Cooling activation
- Speed limiter removal
- Cold start adjustment (off-road use only)
- High-flow catalytic converter adaptation (off-road use only)
- Exhaust flap control
On-The-Fly Feature Information
- Switchable Maps On-The-Fly are currently supported on specific BMW F-Series Gen 1 B58 applications.
- Hybrid platforms and additional Gen 2 on-the-fly functions continue to be expanded through software development.
- Supported adjustable options can typically be modified prior to reflashing using the MG Flasher platform.
- Future software updates may expand on-the-fly functionality across additional platforms.
Transmission Limiter Information
MG Flasher incorporates advanced torque management strategies that preserve accurate load calculations and smooth transmission behavior.
Gen 2 Platform Support
- No transmission tuning required for torque limiter calibration adjustments.
- Maintains accurate torque and load calculations.
- Preserves factory-like shift quality.
- Torque limit adjustments available directly through MG Flasher software.
- Supports torque limiter increases up to 1000 Nm on supported platforms.
Gen 1 Platform Support
Vehicles equipped with the ZF 8HP50 transmission may benefit from additional transmission calibration adjustments.
Recommended solutions include:
- Raising transmission torque limits through xHP transmission tuning software.
- Professional transmission ECU recalibration performed by a qualified tuner.
Additional Benefits
- Increased power throughout the RPM range
- Enhanced throttle response and acceleration
- Improved boost control strategies
- Optimized performance for modified vehicles
- Compatibility with future MG Flasher software updates
- Ability to restore factory calibration when desired
Fitment
BMW Vehicles Equipped with the S63TU4 Engine
- BMW M5 Competition (F90 LCI) 2021-2023
- BMW M8 Coupe Competition (F92) 2020-2025
- BMW M8 Convertible Competition (F91) 2020-2025
- BMW M8 Gran Coupe Competition (F93) 2020-2025
- Additional BMW vehicles equipped with the S63TU4 4.4L TwinPower Turbo V8 engine and supported MG1 ECU platforms
Engine Compatibility
- BMW S63TU4 4.4L Twin-Turbocharged V8 Engine
- MG1 ECU-equipped vehicles
- Vehicles equipped with high-flow downpipes
- Vehicles equipped with high-flow catalytic converters
- Compatible with supported gasoline fuel calibrations
ECU Compatibility
- ECUs manufactured before July 2020 are generally supported when otherwise compatible.
- ECUs manufactured in July 2020 and newer require a bench unlock before flashing.
- Compatibility may vary depending on ECU software version and BMW firmware updates.
- Vehicle verification is recommended before purchase.
Disclaimer
MG Flasher products are intended for competition racing and off-road use only and may not be legal for use on public roads in all regions. Users are responsible for ensuring compliance with local regulations, emissions requirements, and vehicle warranty considerations.
JR Auto Performance Inc. accepts no responsibility for vehicle warranty compliance or road legality.
Bench unlocking services are performed by third-party providers and are not included with the purchase of this software. Additional charges may apply depending on the selected provider.
