Custom EFI Live Tune for your Duramax Diesel. We are the Top Choice for Duramax tuning, with over 15 years of Duramax custom tuning experience.
Our Duramax tunes are built in-house with a wide choice of power levels and available in CP3 conversion for 2011 and up models.
We offer our custom tunes for EFI Live devices in a single and 5 position "on the fly" format.
Place you order and select your options, then we will build the tune file and deliver via email. You will need EFI live software (free download) and an EFI Live device to flash the vehicle.
DSP5 allows you to change you Duramax tune anytime without re-flashing each time. For DSP5 Tunes, you will need a DSP5 Switch. You can purchase from us here: DSP5 Switch or use one you may already own.
TRANSMISSION TUNING: If you would like to add a Transmission tune to your order, please purchase separately here: Allison Transmission Tune
**This custom tune will require flashing into the ECM via EFI Live. You must have an EFI Live device to flash into your vehicle, this is a tune only and does not include a device. If using an Autocal, it must be linked to Dynamic Calibration, we can help with that process if needed. If you need an EFI Live device, we offer EFI Live Autocals with tuning pre-installed in a device, ready to flash here: EFI Live Autocal v3 - Duramax
You may need an EFI Live VIN License if you do not have one available in your device.