My Cart: 0 item(s)

ENGINEERING THE FUTURE OF PERFORMANCE ™
follow us:

Secure Checkout
9G 725.9 TCU Tune
Purchase 9G 725.9 TCU Tune
  • SKU: 05-725-00162-8

    9G 725.9 TCU Tune

  • $1,999.00 $1,999.00

  • 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.

Manufacturer Weistec
Transmission Family 725.9
UPC 810089563507
year make model trim engine
2023 Mercedes-Benz E350 Base (W213) Turbocharged 2L I4 (M264)
2022 Mercedes-Benz E350 Base (W213) Turbocharged 2L I4 (M264)
2021 Mercedes-Benz E350 Base (W213) Turbocharged 2L I4 (M264)
2020 Mercedes-Benz E350 Base (W213) Turbocharged 2L I4 (M264)
2021 Mercedes-Benz C400 Cabriolet (A205) Twin Turbo 3L V6 (M276)
2020 Mercedes-Benz C400 Cabriolet (A205) Twin Turbo 3L V6 (M276)
See more

Product Description



What is the Flashtool and what does the Flashtool do?

The Cypher Flash Tool is an tool that allows for at home control module flashing via the vehicle's OBD2 port. With this tool, it is possible to flash a Weistec TCU tune on your vehicle from the comfort of your own garage, as well as flash updates to a Weistec CPC. Certain vehicles can even have the ECU flashed using the Cypher Flash Tool.


Benefits of doing a TCU Tune?

The Weistec TCU tune results in faster and more firm shifts. This is accomplished with faster target shift times and running higher line pressure which also has the added benefit of reducing slip and increasing the torque capacity of the transmission. With higher line pressure, the clutches in the transmission are clamped harder making for better grip which directly allows the transmission to hold more torque. With less slip and faster shifts, the lifespan of the transmission is typically improved as well. This is a great upgrade for any supported vehicle whether it is stock or modified.

Please email your VIN to tuning@weistec.com so that we can verify compatibility with your specific vehicle.


**** Requires Windows PC or Mac to be able to use flashing software

Key Features

  • Faster Shifts

  • Firmer Shifts

  • Increased Line Pressure

  • Increased Torque Capacity