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.

Some older vehicles may not be supported by Cypher Plus and instead require a Cypher Classic handheld. If that applies to your vehicle, the individual tune page for your specific application will let you know.

ALWAYS use a battery charger when you are installing the tune.

Download the MyFlasher app to get started:

If you are local to us, you can come in to get any tune we offer installed. You could bring your vehicle or just the ECU/TCU. Simply call 714-202-0005 or email sales@weistec.com to schedule an appointment. We schedule tunes Monday through Friday, 9am to 4pm. We are closed on major holidays.

NOTE: This option is NOT available at all Cypher Pro Dealers for the following TCU Tunes: AMG GT/GTC/GTS/GTR TCU Tune, 722.6 EGS52 TCU Upgrade, or the M159 SLS TCU Tune

Cypher Pro Dealers are equipped to install most of the tunes we offer and we have many around the world. If you're located near 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.

The final option is removing your ECU or TCU and shipping it to Weistec Engineering for tuning. If you choose to ship your unit to us, please follow these instructions. Nearly all tunes we offer can be done this way.

CPC tunes work differently: we don't reprogram your original CPC. Instead, we ship you a new, pre-programmed unit directly. There's nothing for you to remove or send in.

1. Place your order on our website
2. Remove the ECU or TCU from the vehicle
3. Wrap the unit in bubble wrap and use an appropriately sized flat rate shipping box
4. 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
5. The speed (ground, next day, two day, etc.) that you ship the unit to Weistec is your choice.
6. 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.