Computer Tuning Process
There are three options for getting a Weistec Tune
on your ECU
CYPHER PLUS
*TCU tuning available on select vehicles.
As of now, a large majority of the vehicles we offer tunes for are supported by Cypher Plus. If your vehicle is supported, Cypher Plus is a great way to get your ECU tuned, and on select vehicles, your TCU too, entirely from your phone. Once you place your order for the tune and Cypher Plus, we ship you the device complete with all necessary cables. From there, everything happens through the MyFlasher app: you'll pair Cypher Plus to your vehicle to read the stock file or identify the software versions on the ECU, submit that information to our tuning team, and once your tune file is ready, write it to the car, all from the same app.
ALWAYS use a battery charger when you are installing the tune.
Download the MyFlasher app to get started:
IN PERSON
NOTE: This option is NOT available for the following TCU Tunes: AMG GT/GTC/GTS/GTR TCU Tune, 722.6 EGS52 TCU Upgrade, or the M159 SLS TCU Tune
If you're located near Weistec headquarters in Anaheim, CA, or a certified Weistec Cypher Pro Dealer, you can schedule an appointment to bring your vehicle, ECU, TCU, or CPC in for tune installation.
- Some models require ECU, TCU, or CPC removal for tuning.
- Others can be flashed via the OBD port.
To find a Weistec Cypher Pro Dealer near you, use our store locator.
For any questions or assistance, please contact us at sales@weistec.com —we’re happy to help!
IMPORTANT: If you plan to tune your ECU, TCU, or CPC at a Cypher Pro Dealer, you must purchase the tune directly from them. Do not purchase the tune through our website.
SHIPPING
NOTE: This option is available for any ECU, TCU, or CPC tune, but if you are purchasing the following TCU Tunes, this is your only option: AMG GT/GTC/GTS/GTR TCU Tune, 722.6 EGS52 TCU Upgrade or the M159 SLS TCU Tune
The final option is removing your ECU, TCU, or CPC and shipping it to Weistec Engineering for tuning. If you choose to ship your unit to us, please follow these instructions
- Place your order on our website
- Remove the ECU, TCU, or CPC from the vehicle
- Wrap the unit in bubble wrap and use an appropriately sized flat rate shipping box
- Include a copy of your order receipt in the package along with a completed calibration request form. The forms can be found here: https://www.weistec.com/calibration-request
- The speed (ground, next day, two day, etc.) that you ship the unit to Weistec is your choice.
- Ship computer package to...
Weistec Engineering
Attn: Calibration Dept.
1266 N. La Loma Cir
Anaheim, CA 92806
In most cases, if the unit is delivered by 10:30am Pacific Time, we can get it tuned and shipped back out the same day. If it arrives later in the day and/or without a completed calibration request form or a copy of your order receipt, it will cause delays.