MTech Performance BMW B58 M800 Package

Built for Drivers Who Want More Than Basic Bolt-On Power

The MTech Performance B58 M800 Package was engineered for enthusiasts looking to push the BMW B58 platform into an entirely different level of performance. This package is designed for drivers who want aggressive acceleration, serious horsepower capability, and a vehicle that feels completely transformed every time boost comes in.

The BMW B58 engine has proven itself as one of the most capable modern turbocharged platforms in the performance industry. With the proper combination of fueling, turbocharger support, calibration strategy, and supporting modifications, the B58 becomes a true high-performance platform capable of producing exceptional real-world results.

The M800 Package focuses on creating a brutally responsive and repeatable powerband while maintaining the drivability and refinement expected from a modern BMW. From roll racing and drag racing to highway acceleration and weekend events, this package delivers the type of performance that completely changes the personality of the vehicle.

The feeling behind the wheel is immediate. The vehicle pulls significantly harder throughout the RPM range, turbo response becomes violent, and acceleration feels relentless from gear to gear. This is the level where the B58 platform begins competing with much higher-end performance platforms while still retaining daily driving capability.

What Is Included in the M800 Package

• MTech Performance Custom B58 Calibration
• Bootmod3 BM3 Custom Tuning
• Advanced Boost Control Optimization
• Custom Ignition Timing Calibration
• Ethanol Fuel Calibration Support
• Flex Fuel Tuning Support
• High Output Turbocharger Calibration Strategy
• Advanced Datalog Review and Revision Support
• Refined Torque Management
• Multi-Map Switching Capability
• Transmission Tuning Recommendations
• MTech Performance Technical Support

Expected Power Capability

The M800 Package was developed around enthusiasts targeting the upper limits of the factory B58 platform with proper supporting modifications and fueling upgrades. Final horsepower numbers will vary depending on turbocharger setup, ethanol content, elevation, drivetrain configuration, and overall vehicle setup.

This package is intended for serious performance enthusiasts who want a vehicle that feels explosive under acceleration while maintaining proper tuning strategy, drivability, and consistency.

Recommended Supporting Modifications

The M800 Package requires the proper hardware combination to safely and effectively support higher horsepower levels. Supporting modifications are critical for achieving consistent results and maintaining reliability under elevated boost and load conditions.

• Upgraded Turbocharger System
• High Flow Intake System
• Performance Downpipe
• Upgraded Charge Pipe
• Port Injection or Additional Fueling Support
• Upgraded Low Pressure Fuel Pump
• Flex Fuel Kit
• Performance Heat Exchanger
• Upgraded Spark Plugs
• High Ethanol Content Fuel Support

Supported BMW B58 Platforms

• BMW M340i
• BMW M440i
• BMW 340i
• BMW 440i
• BMW X3 M40i
• BMW X4 M40i
• BMW Z4 M40i
• Toyota GR Supra
• Additional B58-supported BMW applications

Why High Performance BMW Owners Choose MTech Performance

MTech Performance has built a reputation around producing real-world results for high horsepower BMW platforms. Our tuning philosophy prioritizes safe power delivery, intelligent calibration strategy, drivability, and repeatable performance rather than unrealistic dyno claims.

High horsepower BMW tuning requires more than simply increasing boost pressure. Proper fuel control, ignition timing management, torque intervention strategy, turbocharger efficiency, and drivetrain behavior all play critical roles in building a fast and reliable vehicle.

Our experience with high-output B58 combinations allows us to develop tuning strategies that help maximize performance while maintaining consistency under demanding conditions.

The M800 Package was built for enthusiasts who want their BMW to feel genuinely fast every single time they drive it.

Important Information

Certain BMW B58 vehicles may require a FEMTO DME unlock before tuning can be installed. Please contact MTech Performance prior to purchasing if you are unsure whether your vehicle requires unlocking.

Professional installation and supporting modifications are strongly recommended for higher horsepower setups.

Performance results will vary depending on hardware configuration, fuel quality, environmental conditions, and drivetrain setup.

Off-road use only where applicable.