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ENGINEERING THE FUTURE OF PERFORMANCE ™
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S63TU ECU Tune
Purchase S63TU ECU Tune
  • SKU: S63TU-ECU-Tune

    S63TU ECU Tune

  • Advertised gains are estimates of HP and Torque “at the engine” calculated from gains as measured on a Dynojet Dynamometer in ideal conditions and typically show the largest possible change.  Actual gains are dependent on the following: Learn More

    Model – Manufacturers use the same engine in multiple model vehicles and often times they are in a different state of tune, for example: 2008 C63 and a 2008 CLK Black Series.  Both have the same engine, but the C63 has 451hp while the CLK63 has 500hp.  Naturally the C63 will show more gains as it starts at a lower level.

    Model Year – Similar to above, as time progresses, Manufacturers tend to slightly increase power output via software from one year to the next or offer “Performance Packages” with increased power.  The engines remain largely unaltered and as a result, final tuned output remains the same, while the gains are lower as the starting point is now higher.

    Fuel – Fuel quality is HIGHLY important with performance vehicles.  Low quality and/or low octane fuel will greatly impact engine output and potentially even engine health.  Top tier brand premium fuels should always be used to achieve the best results possible.

    Drivetrain – All wheel drive has higher drivetrain losses than rear wheel drive.  This results in lower numbers when testing on a chassis dyno.  Wheel/tire size and weight will also impact chassis dyno results

    Weather/Conditions – Temperature, humidity, altitude, and air density all impact engine performance.  Heat, high humidity, and thin air will all work towards reducing engine output

    Engine Health – Higher miles tends to result in increased build up and lower compression which can and will impact engine output.  Properly maintained engines will have better performance than abused or neglected engines.

    Supporting modifications – The highest power levels require supporting modifications.  Depending on the engine, this could mean forged internals, built transmission, upgraded fuel system, 110+ octane race fuel, etc.

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  • $1,199.99

  • Prop 65 warning
    Warning

    This product can expose you to chemicals including carbon black, silica - crystalline, formaldehyde, and lead which are known to the State of California to cause cancer, and lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Weistec Horsepower 730
Weistec Torque 710
Manufacturer Weistec
Street legal in all the US States No
Engine Family S63tu
Stock Horsepower 547
See more
year make model trim engine
2020 BMW X6 M 8AT (F96) Twin Turbo 4.4L V8 (S63)
2020 BMW X6 M-Competition 8AT (F96) Twin Turbo 4.4L V8 (S63)
2017 BMW X6 M 8AT (F16) Twin Turbo 4.4L V8 (S63)
2016 BMW X6 M 8AT (F16) Twin Turbo 4.4L V8 (S63)
2015 BMW X6 M 8AT (F16) Twin Turbo 4.4L V8 (S63)
2020 BMW X5 M-Competition 8AT (F95) Twin Turbo 4.4L V8 (S63)
See more

ECU Tuning Process: How do I get my ECU tuned?

The Weistec S63TU tune provides solid gains through out the entire powerband, This is on a vehicle with stock exhaust and turbos.  Additional upgrades will result in even more power.

 

Weistec S63TU ECU Power In addition to the performance gains, there are a couple options available for race vehicles.  First is the "Burble".  The M4 GTS comes from the factory with this in a mild form.  You can choose "Off" "Mild" or "Aggressive" for the "Burble".  Many seem to prefer aggressive, but we gladly will let you choose based on your preference. The other race vehicle option would be Catalyst Heating.  On race vehicles, many times the catalysts are removed. In those cases, there is no need for the catalyst heating which would just be making excessive noise on a cold start of the race vehicle. If you have a race vehicle with the catalysts removed, Catalyst Heating can be disabled. 


Cypher Handheld | Powered by Weistec

The Cypher is an optional upgrade when purchasing a Weistec tune for your Fxx series BMW. Simply navigate our website to the tune you wish to purchase. On the tune's product page there will be a drop-down menu giving the option to add Cypher to your tune order. From there, the order is processed, and a Cypher tool will be shipped to you

  • No need to send in your ECU / DME computer
  • Swap tunes file or return the stock within minutes.

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    Weistec S63TU ECU Power 

    What does all this mean to you?  More power, sharper throttle response, and consistent performance with out sacrificing refinement. 

    ECU Tuning Process: How do I get my ECU tuned?

    Key Features:

    • Improved Throttle Response

    • Optimized Fuel, Spark, and Boost

    • Signifigant wheel horsepower and torque gains through the whole power band

    • M4 GTS "Burble" Mild and Aggressive Options (for Race Vehicles only)

    • Disabled Cold Start (for Race Vehicles only)

    • Disabled Speed Limiter