Carbahn Stage 2 Performance Controller & Software – Fits BMW G8X M3/M4

Upgrade the performance of your 2021-2023 BMW G80 M3, G82 M4, or G83 M4 with the Carbahn Stage 2 Performance Controller and Software. Designed for G8X Competition models, this plug-and-play performance controller increases boost pressure to help deliver stronger horsepower and torque output.

The Stage 2 controller features selectable maps through a Bluetooth smartphone app, allowing drivers to access performance settings through supported Apple App Store and Google Play Store applications. This setup is designed for enthusiasts looking to unlock more power from their turbocharged S58 platform.

This Stage 2 package includes the Carbahn Performance Controller Box and Stage 2 software. The controller was developed with the Carbahn Heat Exchanger installed to achieve the claimed power output and is required for the matching factory warranty option.

Product Specifications

Key Features

• Designed for BMW G8X M3 and M4 Competition models
• Stage 2 performance controller increases boost pressure for improved horsepower and torque
• Plug-and-play ECU controller design
• Selectable maps available through a Bluetooth smartphone app
• App support available through the Apple App Store and Google Play Store
• Includes Stage 2 Carbahn Performance Controller Box
• Includes Stage 2 Carbahn Performance Controller Software
• Matching warranty option available
• Developed with Carbahn Heat Exchanger CBG8X-2001 installed for claimed power output

Configuration Options

• Stage 2 Performance Controller and Software for compatible BMW G8X M3 and M4 Competition models
• Matching warranty option available
• Carbahn Heat Exchanger CBG8X-2001 required for matching factory warranty eligibility

Package Includes

• 1 Stage 2 Carbahn Performance Controller Box
• 1 Stage 2 Carbahn Performance Controller Software package

Note: This Performance Controller was developed with the Carbahn Heat Exchanger CBG8X-2001 installed to achieve the claimed power output. The heat exchanger is required for the matching factory warranty option. Professional installation and setup are recommended.

Installation

• Install the plug-and-play performance controller according to the supplied instructions
• Connect the controller to the supported Bluetooth smartphone app
• Select the appropriate performance map through the app
• Verify all connections and controller communication before driving
• Install the required heat exchanger if using the matching factory warranty option
• Professional installation is recommended for best results

Fitment

• 2021-2023 BMW G80 M3 Competition Sedan
• 2021-2023 BMW G82 M4 Competition Coupe
• 2022-2023 BMW G80 M3 xDrive Competition Sedan
• 2022-2023 BMW G82 M4 xDrive Competition Coupe
• 2022-2023 BMW G83 M4 xDrive Competition Convertible

United States: Free shipping available to the lower 48 states across all items. Other states will incur a shipping charge.

Worldwide: Free shipping is available for Complete Headlights, Taillights, DRLs. For custom headlight retrofits, carbon fiber products, and performance products, there will be a shipping charge.  

Please note:
• For Retrofits, you are purchasing a headlight modification service.
• If you select "Shipping own headlights to BayOptiks for modification", you are required to send us your headlights.
• If you choose "Purchase new OEM headlights", we will order and modify a new OEM headlight for you.
• Once your customizations are complete, we will ship it to you!

• Complete Headlights: 3-5 business days for order processing plus shipping time.
• Custom & Pre-Built Headlights: 6-8 weeks depending on the complexity and component availability.
• New OEM and cores: 6-8 weeks plus an additional 4-8 weeks as these are special orders base on the vehicle VIN due to different versions (North American, European, etc.)
• DRLs, Taillights, Brake Pads, and Carbon Fiber Aero: 3-5 business days for order processing, plus shipping time.
• Lens Replacements: 1-3 weeks plus shipping time.

Please note, we do not have control over the time frames of our vendors, manufacturers, and delivery services as they may delay processes in regards to components and shipment.