Description
Unlock maximum performance from your BMW S58-powered vehicle with the MG Flasher Stage 2 OTS Tune. Designed for vehicles equipped with a High Flow Downpipe or High Flow Catalytic Converter, this calibration delivers substantial gains in horsepower, torque, and throttle response while maintaining smooth and consistent power delivery across the entire RPM range.
Stage 2 software is engineered for enthusiasts seeking peak performance from the S58 platform. It optimizes boost pressure, ignition timing, fueling, and torque management to eliminate factory powerband limitations and deliver strong, linear acceleration under all driving conditions.
A valid MG Flasher Flasher License is required in order to flash any OTS or Custom Map.
Important: This calibration must only be used with a High Flow Downpipe or High Flow Catalytic Converter.
Transmission tuning is strongly recommended for optimal performance.
Technical Information
- Increased boost pressure calibration
- Enhanced horsepower and torque output
- NBT display horsepower and torque gauge calibration
- Torque limiter optimization
- Lambda (air-fuel ratio) optimization
- Ignition timing optimization
- Optimized compatibility with xHP transmission tuning software
- Strong and consistent power delivery across full RPM range
Required Hardware
- High Flow Downpipe required OR
- High Flow Catalytic Converter required
- Compatible BMW S58 engine vehicle
- MG Flasher Flasher License required
Adjustable OTS Features
- Switchable Maps On-The-Fly (GEN 1 & GEN 2 B48/B58/S58 support)
- Dynamic exhaust burble adjustment on-the-fly
- Max cooling activation on-the-fly
- Speed limiter removal (select software)
- Startup roar activation (select software)
- Torque-by-gear limiter adjustment (select software)
- Burble flame map options (select software)
- Cold start adjustment (off-road use only)
- Exhaust flap control
Advanced Platform Features
- Torque limit adjustability for supported platforms (B48, B58, S58, S63, MINI)
- Transmission torque limiter optimization for improved drivability
- Custom flashing support for tuner-developed maps
- CVN (Checksum Verification Number) remains unchanged for OEM-level diagnostic transparency
- Flash counter remains untouched for diagnostic discretion
- ECU backup and restore functionality included
- Full compatibility with supported MG Flasher ecosystem features
Flex Fuel & Integration
- Flex fuel support with ethanol content sensor or manual override (CC 7.3 available now)
- Motiv ReFlex integration support (CC 7.2 available now)
- Advanced fueling calibration for high-performance setups
Logging & Diagnostics
- Real-time data logging (requires Logger License where applicable)
- MG Cloud graph visualization for performance analysis
- BMW-specific diagnostic fault code reading and clearing
- ECU adaptation reset and coding restoration tools
- Advanced tuning support for optimization workflows
ECU Unlock Information
- ECUs manufactured in July 2020 and newer require a bench unlock via Femto or AutoTuner.
- ECU must be shipped or unlocked by a qualified third-party tuner using bench tools.
- Bench OBD unlock may be required after BMW software updates.
- Authorized MG Flasher dealers provide ECU unlock services.
- Additional third-party fees may apply depending on provider.
Transmission Limiter Information
Gen 2 Vehicles
- No transmission tuning required for proper calibration operation
- Maintains accurate torque and load calculation models
- Ensures smooth shifting without software manipulation
- Factory torque limits vary by platform (B48, B58, S58, S63)
- Torque limit can be increased up to 1000 Nm using MG Flasher custom code (where supported)
- Adjustment available directly within the application
Gen 1 Vehicles (8HP50 Transmission)
- Factory torque limits may restrict maximum performance output
- Recommended to increase transmission torque limits for best results
- Option 1: Use xHP Flashtool for limiter adjustment
- Option 2: Professional transmission ECU recalibration by a qualified tuner
Fitment
BMW Vehicles Equipped with S58 Engine
- Compatible with BMW models using the S58 twin-turbocharged inline-6 engine
- Designed for high-performance BMW M vehicles equipped with S58 ECU systems
- Requires supporting hardware (High Flow Downpipe or High Flow Catalytic Converter)
- ECUs manufactured before July 2020 are generally supported when otherwise compatible
- ECUs manufactured in July 2020 and newer require bench unlock prior to flashing
- Compatibility depends on ECU firmware version and BMW software updates
- Vehicle verification is strongly 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. The purchaser is responsible for ensuring compliance with local laws, emissions regulations, and manufacturer warranty requirements.
Bench unlocking services are provided by third-party providers and are not included with this product. Additional costs may apply depending on the service provider.
