The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
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Can't find it? Call us at 866-737-4966 for free advice.
Water Meth Inj Kits
We specialize in diesel performance parts, if you do not see what you are looking for, stop clicking and call us at 866-737-4966 for free advice.
We offer a huge selection of stock replacement parts for your diesel!
Diesel Tips Shirts
Show your support with a Thoroughbred Diesel t-shirt, sweatshirt, or sticker decal.
Make heads turn with custom truck accessories from Thoroughbred Diesel.
Diamond Eye Performance
DPF Upgrade Kits
EFI Live Switch Install LB7
EFI Live Switch Install LLY
EFI Live Switch Install LBZ/LMM
EFI Live Switch Install LML
If you are purchasing tune files only you will be asked to provide us with your Serial Number and Authorization code. To obtain those, please follow the directions below.
How to get Serial Number/Authorization Code
If you have purchased a VIN License, please follow the directions below to activate it.
How to update AutoCal with new License
It is important to have a copy of your stock ECM and/or TCM file incase you need to return the truck to stock for any reason. Please follow the directions below to pull the stock ECM file from your truck. *Please note, you can not pull a stock file on an LML*
How to read your stock file
After pulling your stock file from the truck, please follow the directions below to save it onto your computer.
How to save your stock file to your computer