Shop Performance Parts:

Smooth Power Flash Tuner – Stage 2 Package | F06 F10 F12 F13 M5 M6


CarBahn Autoworks’ Stage 2 package includes a Pure Turbos turbocharger upgrade, and will deliver powerful performance without sacrificing reliability or drivability.

  • Saves stock program
  • Reads and clears faults
  • Upgrades can be emailed to you and installed in your flash tuner using your personal computer

708 LB/FT @ 3,200 rpm flywheel torque, 710 HP @ 6,000 rpm flywheel HP

Stage 2 package $5,250
Flash tuner $250




710 HP @ 6,000 rpm flywheel HP

708 LB/FT @ 3,200 rpm flywheel torque


CarBahn Autoworks’ Stage 2 package has been tailored specifically to the increased efficiency of the upgraded Pure Stage 1 turbocharger kit.



Pure Stage 1 Turbochargers are rebuilt with a larger compressor wheel. The turbo upgrade makes the turbocharger more efficient at higher volumes. This reduces charge air temperature at high RPM. The reduction in temperature means we can run more boost safely. The engine will now pull hard all the way to redline. The smooth power flash tuner can upload your stock file for safe keeping, read and clear faults. It can receive software updates from your PC emailed to you by CarBahn. These files can be free updates or increased performance tunes that match hardware upgrades you purchase from CarBahn. The software comes with a two-year product warranty.



CarBahn software 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’s tunes attempt to run too much boost, resulting in active knock corrections which causes surging during acceleration.



Most if not all tunes on the market except CarBahn’s reduce safety parameters in the software in an attempt 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 10 HP and 10 LB/FT Torque. We have seen many damaged engines as result of reducing these safety parameters! It hardly seems worth it for 10HP.


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. We all need to breathe the air. Its difficult to get your car its required emissions test without catalyst and it’s illegal.


High boost with stock engine:

We have seen many damaged engines as result of making too much power with a stock engine. While modern engines are very reliable, it is easy to add large turbochargers and water methanol injection and break the engine. On the F06/10/12/13 M5/M6, maximum safe power on a stock engine is 700 LB/FT flywheel torque. CarBahn makes high performance engines designed to handle more power. More information is available on this web site.


About Steve Dinan:

Steve Dinan has over 40 years of street car 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 know more about tuning high performance engines than Steve Dinan.


Additional information

Stage 2 software, turbochargers

Package [Stage 2 Power System, Carbahn Stage 2 Software, Stage 1 Pure Turbochargers], Add Flash Tuner [+250]


Install Labor time   11hrs
Measured CarBahn rear wheel HP, 634 @ 6,000 RPM
Corrected to CarBahn flywheel HP, 710 @ 6,000 RPM
Measured CarBahn rear wheel torque, 632 @ 3,000 RPM
Corrected Carbahn to flywheel torque, 708 @3,000 RPM


Measured stock rear wheel HP, 535 @ 6,000 RPM
Corrected to stock flywheel HP, 600 @ 6,000 RPM
Measured stock rear wheel torque 520 @ 3,000 RPM
Corrected stock to flywheel torque 582 @ 3,000 RPM

CarBahn HP Gain 110 FWHP
CarBahn Torque Gain 126 FW TRQ


Stock claimed HP, 560 FWHP
Stock claimed Torque, 500 lb/ft FW Trq

All measurements where done using 93 octane gas with factory emissions equipment retained


There are no reviews yet.

Be the first to review “Smooth Power Flash Tuner – Stage 2 Package | F06 F10 F12 F13 M5 M6”

Your email address will not be published. Required fields are marked *

You may also like…

Our team is always ready to help you in any way possible and we can connect you with the best products around. Call today and talk to one of our specialists about how we can upgrade and improve your BMW.

David Kim - High Performance Specialist     (650) 495-0421 Contact David Kim