2020-2022 Powerstroke Peakside EZ Lynk 4-Week to Lifetime Support / 50HP Single Flash to Lifetime Support Package Upgrade

This EZLynk upgrade package refines your 6.7L Powerstroke’s power delivery by optimizing fuel maps and shift strategies, transforming your truck from a restricted workhorse into a high-performance machine. Whether you're hauling heavy or hitting the trails, these tunes ensure your Ford remains reliable while delivering the aggressive response you crave.

*This is for customers looking to upgrade from the 4-Week Lynk Support Package to the Lifetime Support Package!

Peakside Performance CMS6 Cruise SOTF files put six power levels, from 25HP to 150HP, on your factory cruise control buttons, with the tachometer showing which level you picked. No SOTF switch is needed, and normal cruise control still works outside the menu. CMS is exclusive to Peakside Performance and is included on all current Lifetime (unlimited) support packages and on all new links going forward.

How to select a power level:

1. Turn cruise control off and make sure high idle is off.
2. Hold CANCEL (or RES/CANCEL on a combined button) for about one second, until the tachometer jumps to the menu, then release it.
3. Press SET+ or SET- to step through the levels. The tachometer shows your level: 0 RPM is 25HP, 1,000 RPM is 50HP, 2,000 RPM is 75HP, 3,000 RPM is 90HP, 4,000 RPM is 120HP and 5,000 RPM is 150HP.
4. Press CANCEL to exit, or leave it and the menu closes on its own after about five seconds. Give it a few seconds to save before shutting the truck off.

Dynamic Idle lets you choose your own idle sound, from a deep rumble to a full hiss, right from the factory cruise control buttons. Instead of flashing a different file, you pick one of six turbo vane positions. Idle speed stays the same, and your choice is saved through key-off. On a CMS6 Cruise SOTF file, power and idle are set separately, so any idle sound runs on any of the six power levels.

Dynamic Idle comes in CMS6 Cruise SOTF and Level 1-5 files for stock, KC and Titan turbos, and in the stock turbo CAC SOTF file. Each one also comes in an LBF hardcut version.

How to choose an idle sound:

1. Turn cruise control off and make sure high idle is off.
2. Hold SET- for about one second, until the tachometer jumps to the menu, then release it.
3. Press SET+ or SET- to step through the six settings. The tachometer shows your choice: 0 RPM is the deepest rumble (about 10% vane), then 1,000, 2,000, 3,000 and 4,000 RPM, up to 5,000 RPM for a full hiss (about 90% vane).
4. Press CANCEL to exit, or wait about five seconds. Give it a few seconds to save before shutting the truck off.

The LBF Menu comes standard on every CMS6 Cruise SOTF file and every Dynamic Idle file. It switches between Normal and LBF (low boost fueling) on the fly from the same buttons, and your choice is saved through key-off. It changes the smoke limit tables only; the 4,000 RPM hardcut stays in the separate LBF hardcut files.

How to switch: with cruise control and high idle off, hold SET+ for about one second to open the menu, then press SET+ for LBF (tachometer shows 2,000 RPM) or SET- for Normal (1,000 RPM).

CPX fuel pump versions of the tunes are available for KC, Titan/RDS and non-VGT turbo setups, in Level 1-5, CAC SOTF and CMS6 Cruise SOTF files. They carry the fuel pressure calibration for a CPX pump and must only be used on a truck with a CPX pump installed.

Already linked? Trucks with an active Peakside link (Lifetime, or 4-Week within its 4 weeks) will see the new files in the EZ-Lynk app. Flash a Dynamic Idle file to get Dynamic Idle and the LBF Menu.

All Peakside Performance 2020-2026 6.7L Powerstroke tune files include a high idle feature controlled with your factory cruise control buttons.

How to use high idle:

1. Start the truck and leave it in Park with cruise control switched off.
2. Press and fully release the brake once after starting, with your foot off the accelerator.
3. Double click RES/CANCEL and high idle will start at 1,000 RPM.
4. Use SET+ and SET- to raise and lower the idle 50 RPM per press, up to 2,000 RPM.
5. Press RES/CANCEL to exit. Pressing the brake, shifting out of Park, moving, pressing the accelerator or turning cruise on will also turn high idle off.

High idle resets to off every time the truck is restarted.

What is included:

• Single File Tunes  - Tailored for your exact needs, each file delivers sharper throttle, improved efficiency, and enhanced towing capability.
• Shift on the Fly Tunes - Multi-purpose, multiple levels controlled by the switch of a dial. If you are looking to do some towing during the week and wanting to turn it up on the weekends, this package is for you!
• Support Packages  - Planning future mods? Peakside's full support package includes ongoing revisions so your tune evolves with your truck. Limited support packages are perfect for those looking for a single flash
• Transmission Tuning - All support packages include transmission tuning. Optimized shift pressures to keep shifts smooth while increasing shift speed and clutch holding capacity. Choose from their class shift patterns, Regular, 2ND Gear start or a 1-3 Skip. ATTN: Transmission tuning for 2026 is not yet available in EZlynk; files will be automatically shared once it becomes available for full support packages. 

• Provides permanent access to all compatible tuning files (Single File or SOTF) and future software updates.
• Receive automatic tune updates to ensure you always have the latest calibrations and performance advancements.
• Ongoing Revisions are Ideal for those planning future modifications; your tunes can evolve as your truck does.
• Designed for timeless convenience and functionality with the EZ-Lynk AutoAgent device.
• Includes unlimited data logging and direct chat features for communication with a tuner anytime, from anywhere.

• 2026 MODELS: Transmission tuning for 2026 is currently in development; files will be shared automatically via EZ Lynk once released.
• HARDWARE REQUIRED: This is a software upgrade and requires an existing EZLynk AutoAgent device to be installed on the vehicle.
• Competition and off-road use only.

Don't see your question? Ask us anything about this product.

• ?

  Doe this tune delete the emissions? PEAK-PS67-EZLNK-UPG-2022

  Yes.