CBS58-0001 – Smooth Power Flash Tuner Stage 1 Software for F9X X3M, X3MCompetition, X4M & X4MCompetition

Part Number: CBS58-0001 Category:


93 Octane: 628 Flywheel HP & 615 lb-ft Flywheel TQ

100 Octane: 665 Flywheel HP & 632 lb-ft Flywheel TQ


  • *This can ONLY be installed at an Authorized CarBahn Autoworks dealer!
  • Stage 1 software $1,250
  • Matching warranty option $1,250
  • Includes Competition Models
  • Top Speed Governor Removed

Additional Information

Smooth Power Flash Stage 1 Software for F9X X3M, X3MCompetition, X4M, X4MCompetition

**The DMEs will have to be sent to CarBahn Autoworks or an Authorized CarBahn Autoworks bench loading dealer for bench loading. Please call ahead to schedule a flash for this car.

Philosophy: Intelligent software

CarBahn intelligent software has the ability to adapt to a large range of fuels octanes. Out software keeps all safety features and the ability to adapt smoothly form 91 octene to 100 octane and because it can adapt and still make maximum power with each octane you do not need to purchase a custom tune if you are running race gas! It is designed to deliver the highest safe output possible. Smooth Power means software tuned correctly, not over-tuned. We always try to make a natural torque curve, not excessive torque at low RPM that falls off rapidly at high RPM. Excessive torque will break the tires loose, break the engine and drivetrain. Managed torque with a smooth delivery makes the car easier to drive thereby faster and more reliable. Most if not all our competitor tunes attempt to run too much boost, and then compromise reliability by reducing knock sensitivity and thermal protections in an attempt to extract extra power which can cause engine damage.


Most if not all tunes on the market except CarBahn reduce safety parameters in the software to extract more power. These safety parameters such as knock control sensitivity, super knocking control sensitivity, and catalyst thermal protection are tuned into your OEM software to prevent engine and catalyst failure. When we reduced all the supposed power robbing software protections, we lost less than 8 HP and 8 lb-ft Torque. We have seen many damaged engines as result of reducing these safety parameters! It hardly seems worth it for 8HP.

Doing it yourself:

A note on self-tuning tools. There are now programs available that you can buy to tune your car yourself. Many of these tools come with canned programs. Be careful as tuning a high output engine requires tremendous knowledge and experience to extract maximum power without damage.


Emissions legality:

A note on down pipes (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 5 HP . We all need to breathe the air. It is difficult to get your car its required emissions test without catalyst and it is illegal.

About Steve Dinan:

Steve Dinan has over 40 years of streetcar turbo 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:

*Registration with CarBahn Autoworks at time of purchase is required to maintain matching warranty coverage. CarBahn Autoworks reserves the right to deny warranty program enrollment under certain conditions. Please contact us prior to purchase if you have any questions.

*Warranty valid on U.S. and Canadian specification vehicles only. If your vehicle is currently covered by the vehicle manufacturer new car limited warranty, CarBahn Autoworks’ products are warranted for the remaining term of the vehicle manufacturer new car limited warranty. The manufacturer 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 Autoworks’ warranties are transferable when ownership of the vehicle into which the CarBahn Autoworks products were originally installed is sold. The warranty will, without charge for parts or labor, repair or replace the defective CarBahn Autoworks’ component(s), as well as any original vehicle manufacturer component(s) that may have been directly affected by a CarBahn Autoworks component, using new or authorized remanufactured parts. The decision to repair or replace said parts is at the sole discretion of CarBahn Autoworks. Parts for which replacements are supplied under this limited warranty become the

property of CarBahn Autoworks. In all cases, a reasonable period must be allowed for warranty repairs to be completed.

If your vehicle is outside of the vehicle manufacturer’s new car limited warranty, for two (2) years from the original purchase date of the CarBahn Autoworks product, CarBahn Autoworks will repair or replace, at its sole discretion, any defective CarBahn Autoworks component. This warranty does not include reimbursement for repairs to any original vehicle manufacturer component(s) that may have been affected by a CarBahn Autoworks 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 in any material respect from the original vehicle manufacturer or CarBahn Autoworks parts, damage resulting from the unauthorized modification of a CarBahn Autoworks part or assembly, damage resulting from the use of other manufacturer products in conjunction with CarBahn Autoworks’ products or systems, damage to the clutch due to power shifting or abuse, brake rotor warp, friction materials, maintenance services and parts when replaced during maintenance such as spark plugs, lubricants, fluids, engine tune-up parts, replacement of filters, coolant and refrigerant, mechanical adjustments or repairs which result from normal wear and tear, drive-belts, light bulbs, damage due to the failure to perform maintenance services at the specified intervals or in accordance with the instructions in the owner manual from the original vehicle manufacturer or CarBahn Autoworks’ product instructions, damage attributable to negligence or abuse, improper installation, improper treatment or treatment contrary to the instructions in the owner manual from the original vehicle manufacturer or CarBahn Autoworks’ product instructions, engine damage resulting from alteration of CarBahn Autoworks’ original boost pressure, damage resulting from the use of improper or contaminated fuel, damage occurring through corrosion resulting from weak or improper coolant, damage to a CarBahn Autoworks component as a result of a collision or improper collision damage repairs, any vehicle operated in any competitive event or subjected to aggressive track conditions, custom-designed competition parts, damages resulting from loss of time, inconvenience or loss of the use of the vehicle, damage resulting from environmental influences, flood, accident, fire damage, or road salt corrosion, re-manufactured or refurbished products or components (these products are clearly identified as re-furbished and are warranted for the period specified for that particular product).

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  • 2020 BMW X3 M Base SAV
  • 2020 BMW X3 M Competition SAV
  • 2020 BMW X4 M Base SAV
  • 2020 BMW X4 M Competition SAV


  • 93 Octane, Stock W HP & TQ: 445 Wheel HP & 424 lb-ft Wheel torque / Stock FW HP & TQ: 543 Flywheel HP & 517 lb-ft Flywheel torque
  • 93 Octane, Tuned W HP & TQ: 515 Wheel HP & 504 lb-ft Wheel torque / Tuned FW HP & TQ: 628 Flywheel HP & 615 lb-ft Flywheel torque. / Delta W HP & TQ: 70 Wheel HP & 80 lb-ft Wheel torque. / Delta FW HP & TQ: 85 Wheel HP & 98 lb-ft Wheel torque
  • 100 Octane, Tuned W HP & TQ: 545 Wheel HP & 518 lb-ft Wheel torque / Tuned FW HP & TQ: 665 Flywheel HP & 632 lb-ft Flywheel torque / Delta W HP & TQ: 100 Wheel HP & 94 lb-ft Wheel torque / Delta FW HP & TQ: 122 Wheel HP & 115 lb-ft Wheel torque

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