Home » 754HP Stage 2 ECU Software Power Package | BMW G8X M3/M4 Automatic Transmissions
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754HP Stage 2 ECU Software Power Package | BMW G8X M3/M4 Automatic Transmissions

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$2,590.00
$2,590.00

Horsepower

Stock: 591 HP
Tuned: 754 HP*

Torque

Stock: 575 TQ
Tuned: 679 TQ*

*Performance gains measured on 100 Octane at the CarBahn San Jose, CA Dynamometer
  • Digital Download
  • Top-Speed Governor Removed
  • Intelligent Octane Adaptations

Choose your installation method

Option 1: Authorized CarBahn Dealer Installation

This software can be installed at an authorized CarBahn dealer.

Find your nearest authorized dealer

Option 2: Install via Bootmod3 or MHD

Install yourself using Bootmod3 or MHD. Call 866-558-4314 ext. 1 to purchase or learn more. Note: Tunes installed via this method are not eligible for the CarBahn Factory Matching Warranty Program.

DME Unlock Required

This vehicle requires a FEMTO DME unlock prior to flashing. The DME(s) must be removed from the vehicle and sent out for unlocking before installation can be completed at the dealer. Remote start functionality can be retained if equipped.

Need help deciding which option fits your vehicle? Call 866-558-4314 ext. 1 and our team will point you to the right path.

NOTE: *This can ONLY be installed at an Authorized CarBahn dealer! ⚠️ Special Instructions: The DME(s) need to be pulled out of the engine bay and shipped to Europe for unlock before flashing can be done at the dealer.

SKU: CBG8X-9001

QUESTIONS? TALK WITH OUR TUNERS

Vehicle Fitment & Product Details

  • Type: Tuning & Software
  • Vendor: CarBahn
  • Make: BMW
  • Model(s): M3 Competition, M3 Competition xDrive, M3 CS, M4 Competition, and M4 Competition xDrive
  • Vehicle Year(s): 2021, 2022, 2023, 2024, 2025, and 2026
  • Transmission(s): Automatic
  • Chassis: G80, G82, and G83
  • Body Style(s): Coupe, Sedan, and Convertible
  • Drivetrain(s): xDrive and RWD
  • Part Number: CBG8X-9001
  • Fits Engines: S58
  • Installation: Dealer Install Only
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Product Description

Specs & Performance

Comp RWD

Calculated Flywheel Power Measured Wheel Power
93 Octane OEM Stock: 591 HP / 575 lb-ft TQ
Tuned: 735 HP / 668 lb-ft TQ		 OEM Stock: 508 WHP / 494 lb-ft WTQ
Tuned: 632 WHP / 574 lb-ft WTQ
Tuned – 100 Octane Tuned: 754 HP / 679 lb-ft TQ Tuned: 648 WHP / 584 lb-ft WTQ

Comp xDrive

Calculated Flywheel Power Measured Wheel Power
Stock – 93 Octane OEM Stock: 591 HP / 575 lb-ft TQ
Tuned: 735 HP / 668 lb-ft TQ		 OEM Stock: 484 WHP / 471 lb-ft WTQ
Tuned: 602 WHP / 548 lb-ft WTQ
Tuned – 100 Octane Tuned: 754 HP / 679 lb-ft TQ Tuned: 618 WHP / 557 lb-ft WTQ
  • *This can ONLY be installed at an Authorized CarBahn dealer!
  • Fits Automatic Transmission equipped models only!
  • Includes ST2 software, Heat Exchanger, CarBahn High Performance air filters.
  • Does not include Manual Transmission equipped models.
  • Top Speed Governor removed.
  • CarBahn EVO Intelligent software adapts to various fuel octane levels seamlessly, optimizing performance without compromising safety. It retains existing safety features and adds extra protection as needed.
  • This software was developed with our heat exchanger installed to achieve the claimed power output and it is required for our matching factory warranty!

Overall rating: 5.0 / 5 from 1 reviews.

AI Generated Review Summary

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Reviews

More power, better throttle response.

"The stock engine power is not lacking but the STAGE 2 software flash increases throttle response and adds some G in heavy acceleration. No down side that I can find. It’s a very smooth and consistent power increase, very street-friendly, and makes a great car even better."

— Stewart B. (5/5)

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