Description
The CarBahn Performance 656 HP Stage 1 Performance Controller is a plug-and-play ECU tuning solution designed for select BMW models equipped with the N63B engine. This performance controller is compatible with BMW 750i, M550i, M850i, X5 M50i, X6 M50i, and X7 M50i applications across G30, G05, G06, G07, and G1X chassis configurations.
The CarBahn Performance Controller (CPC) increases turbocharger boost pressure to deliver increased horsepower and torque while providing selectable performance maps through a Bluetooth smartphone application.
On 93-octane fuel, the controller produces 637 HP and 717 lb-ft of torque, while 100-octane fuel increases output to 656 HP and 728 lb-ft of torque.
The CPC supports 91, 93, and 100 octane maps, allowing the calibration to be selected according to the available fuel. The controller is designed for straightforward installation with an estimated installation time of approximately 2 hours.
Performance Specifications
93 Octane
| Specification | Calculated Flywheel Power | Measured Wheel Power |
|---|---|---|
| OEM Stock | 564 HP / 651 TQ | 462 WHP / 533 WTQ |
| Tuned | 637 HP / 717 TQ | 522 WHP / 588 WTQ |
| Delta | +73 HP / +66 TQ | +60 WHP / +55 WTQ |
100 Octane
| Specification | Calculated Flywheel Power | Measured Wheel Power |
|---|---|---|
| OEM Stock | 564 HP / 651 TQ | 462 WHP / 533 WTQ |
| Tuned | 656 HP / 728 TQ | 538 WHP / 597 WTQ |
| Delta | +92 HP / +77 TQ | +76 WHP / +64 WTQ |
CarBahn Performance Controller (CPC)
The CarBahn Performance Controller is a plug-and-play ECU device designed for turbocharged vehicles. By increasing boost pressure, the CPC is designed to increase horsepower and torque.
The unit provides selectable maps through a Bluetooth smartphone application and supports:
- 91-octane map
- 93-octane map
- 100-octane map
- Bluetooth smartphone control
- Plug-and-play ECU installation
- Fuel-specific performance maps
An optional powertrain warranty can be purchased with the CarBahn Performance Controller.
If you choose to trade the CarBahn Performance Controller for CarBahn software in the future, a $250 upgrade fee applies. If the optional warranty was purchased, it can be transferred to the software at no additional charge.
Emissions Legality
CarBahn notes that removing the catalytic converter with a downpipe provides a relatively small performance gain, typically around 11 HP, based on back-to-back dyno testing. Removing the catalyst can make it difficult to pass required emissions testing and is illegal in certain applications and jurisdictions.
About Steve Dinan
Steve Dinan has more than 40 years of street-car tuning experience. As an engine supplier, his racing programs achieved three prototype racing championships and two overall victories at the 24 Hours of Daytona in partnership with Chip Ganassi Racing.
Detailed Fitment
- 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: Automatic
- Chassis: G30, G05, G06, G07, and G1X
- Body Style(s): Sedan, Convertible, Coupe, Gran Coupe, and SAV
- Drivetrain(s): xDrive and RWD
- Engine: N63B
- Measured Flywheel Horsepower: 656 HP
- Part Number: CBPRC-0037
- Installation Time: 2 hours
- Type: Tuning & Software
- Vendor: CarBahn
Warranty Information
The warranty is valid on U.S. and Canadian specification vehicles only.
If the 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, or 80,000 kilometers in Canada, commencing on the date of first retail sale or the date the vehicle is first placed into 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 defective CarBahn components as well as original vehicle manufacturer components that may have been directly affected by a CarBahn component, using new or authorized remanufactured parts. The decision to repair or replace parts is at the sole discretion of CarBahn. Parts replaced under this limited warranty become the property of CarBahn.
If the vehicle is outside the manufacturer's new car limited warranty, CarBahn will, for two years from the original purchase date, repair or replace, at its sole discretion, any defective CarBahn component. This warranty does not include reimbursement for repairs to original vehicle manufacturer components that may have been affected by a CarBahn component.
Warranty Exclusions
The warranty excludes:
- Return shipping charges
- Towing charges
- Rental car fees
- Damage caused by installing replacement parts with specifications that differ from the original
- Unauthorized modifications
- Misuse
- Improper installation
- Damage caused by other manufacturers' products
- Competitive track use
- Normal wear and tear items
- Spark plugs
- Fluids
- Drive belts
- Light bulbs
