Your one stop diesel performance store.


We do not sell or ship products without an E.O. number to California.


KEM DIesel 2017 6.7L Tuners now available!

KEM Diesel is now offering 2017 6.7L tuners, click on the picture below for more information!

2017 F250



KEM DIesel 6.0L FICM Tuners now available!

KEM Diesel is excited to announce our new custom tuned FICM module tuner! This is not a reflash to an earlier file like our competitors do, but a true custom tune to your requirements (including tuning for larger injectors and higher revving applications). See the dyno sheet of our tuning on a stock injector 6.0L truck. These tuners allow you to tune the FICM in the truck using the OBD2 port - no need to send us the FICM anymore. It is a one time use tuner and will not tune multiple vehicles or FICMs.

Only $369 with free shipping!


2016 Ford SuperDuty 6.7L tuners and tuning now available on SCT X4 and Livewire TS products!


We have been tuning the 6.7L longer than any other company and know what works and what doesn't. The tuner comes with 3 power levels: Tow, Performance,, and our RACE DPF ON All-Out file. Please Note: These are on highway use files only! It will require that all of the emissions equipment parts are installed and operational on the truck. Attempting to use this on a deleted truck will cause issues! We recommend that your truck have the latest Ford flash for best tuning operation and the most power.
After ordering, you will need to send an email with the VIN, engine and transmission strategies, and all mods done to the truck.
For more information or to order, click on the product picture below.

LWTS 5015X4 7015



Free shipping on orders over $50!