2003-2010 POWERSTROKE CTS3 5-TUNE PACKAGE

Please email stock reads to sales@amcorpdiesel.com with your order number!

Stock read files can be obtained by reading the vehicles factory data through "custom tuning" and pulling the file from your device on your Windows or MAC computer.

Please reach out to us if you are in need of any assistance. 

Please make sure you understand you will need to upgrade your CTS3 via EDGE's Update Agent program in order to use these tune files. Refunds will not be given for files ordered without knowing this. Please review the link below.

How to upgrade my CTS3 and Flash my truck.

These files will have a slightly longer turnaround time then our usual SCT/HP Tuner files.

Peakside Performance is proud to announce that we are now offering CTS3 custom tuning for the 6.0 Powerstroke. Our team has worked hard to bring truck owners a seamless, straightforward ordering process—making it easier than ever to unlock the full potential of your 6.0 Powerstroke.

It’s important to note that due to this platform limitations, these files will not disable or remove emissions equipment. If you are looking to this, please use our SCT or HP Tuner options. Instead, they are designed to optimize performance within those constraints, giving you reliable power gains and better throttle response while keeping everything compliant.

With each order, customers will also receive a direct link to step-by-step instructions on how to upgrade their CTS3 device and load our custom tuning files. We’ve designed this process to be smooth, beginner-friendly, and hassle-free, so you can spend more time enjoying your truck’s improved performance and drivability. Below is a link on how to use the CTS3's custom tuning features

At Peakside Performance, we’re committed to providing proven, high-quality tuning solutions backed by expert support. Our CTS3 custom tuning for the 6.0 Powerstroke is another step forward in helping our customers get the most out of their trucks.

Tunes descriptions below reflect stock truck manners. Modified trucks will have files scaled accordingly. 

Performance Locked - This is our race tuning with an added early torque converter lockup. This is meant for racing on the track, or aggressive street driving.

Performance - Our flagship race tuning. this tune offers quick shifts and maximum power for taking your buddies to Mexico. STUDDED TRUCKS ARE RECOMMENDED!

Hot Street - This is similar to our race tuning but for non-studded trucks, or used as street tuning for studded trucks.

Street - Want a little more over your tow file? This can be used as a hotter tow file that is also able to hold its own on the street, and still get down on the weekends.

Tow - This is a great everyday driver for the average person looking for more driveability and power to be used for towing and daily driving.

Heavy 12k Tow - This tune is a stock power with increased drive-ability and spooling. This tune is meant for heavy hauling.

Custom Request - This is for a custom request the customer may have, drag trucks, standalone builds .etc