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656 HP Stage 1 Performance Controller | BMW M550i/M850i/X5 M50i/X6 M50i/X7 M50i/750i

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Part Number: CBPRC-0037
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$995.00
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HORSEPOWER
656 HP +92 HP
Stock: 564 HP
TORQUE
728 TQ +77 TQ
Stock: 651 TQ
*Measured using 100 octane fuel at the CarBahn San Jose dynamometer.

Choose your installation method

Set up your controller the way that works for you.

Starting at $995.00
Dealer installation labor is not included in this total.
ESTIMATED INSTALLATION TIME
1.5 hours

Typical labor time for this product.

Need professional installation?

Find an authorized CarBahn dealer to arrange installation and request a labor quote.

Find an Authorized Dealer
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): 750i, M550i xDrive, M850i xDrive, X5 M50i, X6 M50i, X7 M50i, M850i, and M550i
  • Vehicle Year(s): 2019, 2020, 2021, 2022, 2023, 2024, 2025, and 2026
  • Transmission(s): Automatic
  • Chassis: G30, G05, G06, G07, and G1X
  • Body Style(s): Sedan, Convertible, Coupe, Gran Coupe, and SAV
  • Drivetrain(s): xDrive and RWD
  • Measured Flywheel Horsepower: 656
  • Part Number: CBPRC-0037
  • Fits Engines: N63B
  • Installation Time (hrs): 2
View full details
Fuel Type Calculated Flywheel Power Measured Wheel Power
93 Octane OEM Stock: 564HP / 651TQ OEM Stock: 462WHP / 533WTQ
Tuned: 637HP / 717TQ Tuned: 522WHP / 588WTQ
Delta: +73HP / +66TQ Delta: +60WHP / +55WTQ
100 Octane OEM Stock: 564HP / 651TQ OEM Stock: 462WHP / 533WTQ
Tuned: 656HP / 728TQ Tuned: 538WHP / 597WTQ
Delta: +92HP / +77TQ Delta: +76WHP / +64WTQ

CarBahn Performance Controller (CPC):

The CPC is a plug-and-play ECU that increases boost pressure in turbocharged cars to dramatically increase HP and Torque. The unit has selectable maps through a Bluetooth app on your smartphone. You can download these apps for your smartphone through the Apple App Store and the Google Play Store.

Apple App Store: https://apps.apple.com/us/app/tuning-pro/id1508035080
Google Play Store: https://play.google.com/store/apps/details?id=com.sve.gmbh.tuningpro&hl=en_US&gl=US

These maps are designed to accommodate different octane fuels for additional increased performance. You can choose between 91, 93, and 100 Octane.

As with all CarBahn products, an optional powertrain warranty can be purchased.

If you want to trade your CarBahn Performance Controller for software in the future, there is a $250 upgrade fee, and if you purchased the warranty, it is transferable to the software at no additional charge!

Emissions legality:

A note on downpipes (removing the catalyst): We have run back-to-back dyno runs with the cat on and off, and the power gain is much smaller than most people claim, usually around 11hp. We all need to breathe the air. It is difficult to get your car its required emissions test without a catalyst, and it is illegal.

About Steve Dinan:

Steve Dinan has over 40 years of streetcar tuning experience. As an engine supplier, we won 3 prototype racing championships and two overall wins at the 24hrs of Daytona, partnering with Chip Ganassi Racing. No one knows more about tuning high-performance engines than Steve Dinan.

Warranty Information:

*Warranty valid on U.S. and Canadian specification vehicles only. If your vehicle is currently covered by the vehicle manufacturer’s new car limited warranty, CarBahn products are warranted for the remaining term of the vehicle manufacturer’s new car limited warranty.

The manufacturer’s new car warranty is limited to 4 years or 50,000 miles (80,000 kilometers in Canada), commencing on the date of first retail sale or the date the vehicle is first placed in-service as a demonstrator or company vehicle, whichever is earlier. CarBahn warranties are transferable when ownership of the vehicle is sold. The warranty will, without charge for parts or labor, repair or replace the defective CarBahn component(s), as well as any original vehicle manufacturer’s component(s) that may have been directly affected by a CarBahn component, using new or authorized remanufactured parts. The decision to repair or replace said parts is at the sole discretion of CarBahn. Parts replaced under this limited warranty become the property of CarBahn.

If your vehicle is outside of the manufacturer’s new car limited warranty, for two (2) years from the original purchase date of the CarBahn product, CarBahn will repair or replace, at its sole discretion, any defective CarBahn component. This warranty does not include reimbursement for repairs to any original vehicle manufacturer’s component(s) that may have been affected by a CarBahn component.

Warranty exclusions:

Return shipping charges, towing charges, rental car fees, damage to a component or assembly due to the installation of replacement parts with specifications that differ from the original, unauthorized modifications, misuse, improper installation, damage caused by other manufacturer’s products, or competitive track use. The warranty excludes normal wear and tear items like spark plugs, fluids, belts, or light bulbs.

Overall rating: 4.6 / 5 from 5 reviews.

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Reviews

"Really livens up my 2023 X5 M50i! Worth the money!"

— Robert (5/5)

AWESOME GAINS DEFINTLY CAN FEEL

"AWESOME GAINS DEFINTLY CAN FEEL THE DIFFERENCE WELL WORTH THE MONEY"

— jeremy r. (5/5)

Love it. It unleashed the

"Love it. It unleashed the beast!! Thank you ,great product!!"

— Edward G. (5/5)

Yikes. Seriously scared the crap

"Yikes. Seriously scared the crap out of me with the power gain on the 93 octane setting. Awesome products guys!!!"

— Iokepa C. (5/5)

Unsure, as just installed and

"Unsure, as just installed and trying to differentiate with/without the controller, as the car is well equipped (as stock). Not loving the phone app. Does not provide any insight to validate operation / performance/ ect."

— gerard j. (3/5)

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