Description
Upgrade the performance of your BMW G8X M2, M3, or M4 with CarBahn Performance 675 HP Stage 2 ECU Software, engineered specifically for manual transmission rear-wheel-drive models. This advanced ECU calibration is designed to significantly increase horsepower and torque while maintaining factory safety systems and drivability.
CarBahn EVO Intelligent software continuously adapts to different fuel octane levels, optimizing engine performance while maintaining a strong focus on safety. The software retains existing factory safety features while adding additional protection where needed.
This Stage 2 ECU software removes the factory top-speed governor and is calibrated to deliver up to 675 HP and 606 lb-ft of torque on 100-octane fuel. On 93-octane fuel, the calibration produces up to 661 HP and 602 lb-ft of torque based on calculated flywheel power.
The software was developed with the CarBahn heat exchanger installed to achieve the claimed power output. The CarBahn heat exchanger is required for the matching factory warranty.
Installation is available exclusively through an Authorized CarBahn dealer. This software is compatible with manual transmission-equipped models only.
Performance Specifications
93 Octane – Calculated Flywheel Power
- OEM Stock: 528 HP / 476 lb-ft TQ
- Tuned: 661 HP / 602 lb-ft TQ
93 Octane – Measured Wheel Power
- OEM Stock: 465 WHP / 419 lb-ft WTQ
- Tuned: 582 WHP / 530 lb-ft WTQ
100 Octane – Calculated Flywheel Power
- Tuned: 675 HP / 606 lb-ft TQ
100 Octane – Measured Wheel Power
- Tuned: 594 WHP / 533 lb-ft WTQ
Product Features
- 675 HP Stage 2 ECU software calibration
- Designed for BMW G8X M2, M3, and M4 models
- Manual transmission compatibility
- Rear-wheel-drive application
- Top-speed governor removed
- CarBahn EVO Intelligent software
- Automatic adaptation to various fuel octane levels
- Optimized performance while maintaining safety
- Retains existing factory safety features
- Adds additional engine protection as needed
- Dealer installation required
- Factory Matching Warranty
- CarBahn heat exchanger required for the matching factory warranty
- Developed with the CarBahn heat exchanger installed to achieve the claimed power output
Detailed Fitment
Make: BMW
Model(s): M2, M3, and M4
Vehicle Year(s): 2021, 2022, 2023, 2024, 2025, and 2026
Transmission(s): Manual
Chassis: G87, G80, G82, and G83
Body Style(s): Coupe, Sedan, and Convertible
Drivetrain(s): RWD
Horsepower: 675 HP
Important Installation & Warranty Information
- This software can ONLY be installed at an Authorized CarBahn dealer.
- Fits manual transmission-equipped models only.
- The CarBahn heat exchanger is required for the matching factory warranty.
- The software was developed with the CarBahn heat exchanger installed to achieve the claimed power output.
Part Number: CBS58-0302
Installation: Dealer Install Only
Vendor: CarBahn
Type: Tuning & Software
