Home » 657 HP Stage 2 Performance Controller Power Package | BMW G87 M2 (2023 - 2027)

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657 HP Stage 2 Performance Controller Power Package | BMW G87 M2 (2023 - 2027)

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Part Number: CBG8X-9006

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$2,795.00

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HORSEPOWER

657 HP +103 HP

Stock: 554 HP

TORQUE

589 TQ +88 TQ

Stock: 501 TQ

*Measured using 100 octane fuel at the CarBahn San Jose dynamometer.

What You Get

CarBahn Stage 2 Performance Controller
CarBahn Heat Exchanger
🎁 2 FREE CarBahn High-Flow Air Filters ($149 value)

Choose your installation method

Set up your controller the way that works for you.

Vehicle configuration

Dealer Installation Have an authorized CarBahn dealer install your controller. Install at Home or With Your Own Mechanic Plug in the controller yourself with the supplied instructions.

Starting at $2,795.00

Dealer installation labor is not included in this total.

Vehicle Fitment

Compatible vehicles and model years.

Vehicle	Model Years

Questions before you order? Our performance specialists can help.

(866) 558-4314

Performance Controller FAQs

Answers to common questions about installation, upgrades, tuning and warranty coverage.

Do I need an ECU unlock for a Performance Controller?

No. CarBahn Performance Controllers are plug-and-play devices that work with your vehicle's factory ECU without requiring an ECU unlock or software flash. You can install the controller at home or through a professional installer.

Why is a heat exchanger required for Stage 2?

Stage 2 produces additional power and heat, placing greater demands on the charge-air cooling system. The CarBahn Heat Exchanger provides increased cooling capacity to help control intake temperatures and maintain consistent performance.

The required CarBahn Heat Exchanger must be installed to achieve advertised Stage 2 performance and qualify for CarBahn's optional Factory Matching Warranty.

Can I upgrade to ECU reflash software later?

Yes. If you decide to move from a Performance Controller to CarBahn ECU Software, contact our tuning team to arrange the upgrade.

CarBahn offers a $250 controller trade-in credit toward eligible ECU Software purchases. Unlike the controller, ECU Software requires an ECU unlock and a compatible installation process. Your CarBahn dealer can help coordinate the conversion.

Does the warranty cover my powertrain if I install the controller myself?

CarBahn offers an optional Factory Matching Warranty for eligible vehicles and Performance Controller configurations. This provides separate coverage for qualifying powertrain repairs under CarBahn's warranty terms.

Self-installation does not automatically establish or exclude coverage. Your vehicle, installation, required supporting hardware and warranty purchase must satisfy the applicable terms and eligibility requirements.

We recommend confirming your eligibility with our team before installation, particularly if you plan to install the controller yourself.

How do I pair my Performance Controller with the app?

Download the Tuning Pro app and locate the 13-digit serial number on your controller or product cover sheet. Turn on your vehicle's ignition without starting the engine, enable Bluetooth, and disconnect other Bluetooth devices during initial pairing.

Open the app, enter the 13-digit serial number, and use the final six digits as the Bluetooth PIN when prompted. Once connected, select the map appropriate for the fuel in your tank.

View the complete pairing guide

What fuel octane levels are supported?

CarBahn Performance Controllers support selectable calibrations for 91, 93 and 100 octane fuel. Choose the appropriate map through the Tuning Pro app based on the fuel currently in your tank.

Higher-octane maps must only be used with the corresponding fuel. Available power output varies by vehicle and selected calibration.

Can I upgrade from Stage 1 to Stage 2 remotely, or do I need a new controller?

You don't need to purchase an entirely new controller. CarBahn supports remote upgrades from Stage 1 to Stage 2 on eligible Performance Controllers, so the existing unit can be updated without removal.

Stage 2 supporting hardware, including the required CarBahn Heat Exchanger, must be installed before operating the upgraded calibration. Contact our tuning team to confirm your configuration and arrange the upgrade.

Vehicle Fitment & Product Details

Type: Tuning & Software
Vendor: CarBahn
Make: BMW
Model(s): M2, M2 CS, and M2 xDrive
Vehicle Year(s): 2023, 2024, 2025, 2026, and 2027
Transmission(s): Automatic and Manual
Chassis: G87
Body Style(s): Coupe
Drivetrain(s): RWD and xDrive
Measured Flywheel Horsepower: 657
Part Number: CBG8X-9004
Fits Engines: S58
Installation Time (hrs): 8

View full details

Stage 2 Performance Controller Power Package

Unlock more performance from your BMW G87 M2 with CarBahn's Stage 2 Performance Controller Power Package. Engineered for increased horsepower, stronger torque delivery and consistent performance under demanding driving conditions.

Package Highlights

Stage 2 Performance Controller: Increased horsepower and torque without an ECU unlock.
Upgraded Heat Exchanger: Engineered for 40% more cooling capacity to help maintain consistent performance.
OEM-Style Installation: Uses factory mounting locations for clean integration.
Bluetooth App Control: Select calibrations for 91, 93 and 100 octane fuel.
Automatic & Manual Compatibility: Developed for both G87 M2 transmission options.

Manual transmission note: An upgraded clutch with sufficient torque capacity is required to support the increased output.

Performance Data

Calculated flywheel and measured wheel horsepower and torque figures are shown below.

Automatic Transmission

Condition	Flywheel HP / TQ	Wheel HP / TQ
OEM Stock	554 / 501	465 / 421
93 Octane	633 / 573	532 / 481
93 Octane Gain	+79 / +72	+67 / +60
100 Octane	657 / 589	552 / 495
100 Octane Gain	+103 / +88	+87 / +74

Manual Transmission

Condition	Flywheel HP / TQ	Wheel HP / TQ
OEM Stock	527 / 475	464 / 418
93 Octane	611 / 585	538 / 515
93 Octane Gain	+84 / +110	+74 / +97
100 Octane	628 / 598	553 / 527
100 Octane Gain	+101 / +123	+89 / +109

Power figures are expressed in horsepower and lb-ft of torque. Flywheel output is calculated; wheel output is measured. Actual results vary by vehicle, transmission, fuel quality and operating conditions.

G87 M2 automatic transmission 93 octane dyno results — Automatic: OEM stock versus 93 octane tuned.

G87 M2 manual transmission dyno results — Manual: 93 and 100 octane performance.

Bluetooth App Control

The CarBahn Performance Controller connects to the Tuning Pro app over Bluetooth. Select the appropriate calibration for your fuel directly from your phone, with support for 91, 93 and 100 octane maps.

Emissions compliance varies by jurisdiction. Verify applicable requirements before modifying your vehicle.