Have you purchased both your ECM and TCM tune? If not, please do so now. If you have questions about this, you can refer to this Article or the FAQ section.

Once you submit this form, you will receive an email with information on where to send it and a link to a pre-built shopping cart for items we would recommend.

Customer Details

means required

Full Name

Email Address

Contact Number

Order Number

Engine RPO & Transmission

RPO: ECM - TCM, if your transmission isn't listed, don't worry, you can enter it below. For LML, we can only use E86A modules; Anything post 2014 will have to be replaced.

Are the modules that you are providing matching from the engine and transmission donor vehicle?

Project Details

Project Vehicle

What Tunes are we doing for you?
ECM DSP-5 TuneECM Single TuneTCM Tune

EGR system

Intake Heater

For stock item below, enter "S" or "Stock".

Injector Size

Injection Pump

Turbo Setup

MAF Tube Inner Diameter

Transfer Case

(ex. Allison, 4L85 or 6L90)

Built Transmission?


Axle Ratio

Tire Size Overall Diameter (if staggered separate with a comma)

Additional Vehicle Details - Please fill in any other notable information about the donor vehicle and/or modifications to the engine or transmission.

Wait, there’s one more step!

Once you’ve submitted your tune request form, please make sure you complete your purchase (including ECM and TCM tune) so we can get started on your request. Here’s a link to the different Duramax options for your convenience.