447 HP Stage 1 ECU Software | BMW X3 M40i / X4 M40i
Choose your installation method
Select how you would like your CarBahn software installed. Dealer installation is the fastest, easiest and most cost-effective option.
Authorized CarBahn Dealer Installation
Your authorized CarBahn dealer has the tools and experience needed to unlock your DME and install the software as part of one straightforward service visit.
- Fastest option
- Easiest installation
- Lowest overall cost
- Professional support
A DME bench unlock is required. Your dealer handles the unlock locally as part of the installation and labor process. There is no need to ship your DME overseas.
Complete Your Installation
Select any optional upgrades you would like added to your order.
Selected add-ons will be added to your cart with the software. Warranty eligibility and coverage are subject to CarBahn’s warranty terms.
Install Your Software at Home
At-home installation options are available using a CarBahn loaner tool, Bootmod3 or MHD. Call our team to confirm compatibility and determine the correct installation method for your vehicle.
A DME bench unlock is still required. Our team will explain the unlock and installation process when arranging your at-home installation.
Software installed through Bootmod3 or MHD is not eligible for the CarBahn Factory Matching Warranty Program.
Call 866-558-4314 ext. 1 to arrange an at-home installation.
Digital Download
- Top-Speed Governor Removed
Intelligent Octane Adaptations
SKU: CBB58-0501
Vehicle Fitment & Product Details
- Type: Tuning & Software
- Vendor: CarBahn
- Make: BMW
- Model(s): X3 M40i and X4 M40i
- Vehicle Year(s): 2021, 2022, 2023, 2024, and 2025
- Transmission(s): Automatic
- Chassis: G01 and G02
- Body Style(s): SAV
- Drivetrain(s): xDrive
- Part Number: CBB58-0501
Stock - 93 Octane
Stock Wheel HP & TQ: 328 WHP & 358 lb-ft WTQ
Stock Flywheel HP & TQ: 401 HP & 436 lb-ft TQ
Tuned - 93 Octane
Tuned Wheel HP & TQ: 367 WHP & 407 lb-ft WTQ
Tuned Flywheel HP & TQ: 447 HP & 496 lb-ft TQ
Delta Wheel HP & TQ: 38 WHP 49 lb-ft WTQ
Delta Flywheel HP & TQ: 46 HP & 60 lb-ft TQ
- *This can only be installed at an authorized CarBahn dealer!
- 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