SCT X4 / Bully Dog BDX | Download instructions for custom tunes

The custom tunes for your vehicle are cloud based - meaning you will need an internet/Wi-Fi connection. As well PC based computer.

  • Plug tuner into truck
  • Navigate to download tunes section and click yes
  • It will ask you to connect to Wi-Fi and you must connect at this time
  • It will ask if you want to check cloud for tunes - click yes.
  • You will get a list of tunes you can download to you truck. Typically, its easiest to download all tunes at this time.
  • You can then change tunes without requiring Wi-Fi in the future

Alternatively, plug in the tuner to you computer and download the SCT Update Agent. You can then click on the updater and select "load cloud tunes"


Bully Dog -

*** IMPORTANT NOTE *** - if you need support, you can call SCT @ 866-637-1672. Do NOT mention that you are trying to load custom/delete tunes. If you mention anything about emissions equipment being removed they will not be able to help you.