GDP SCT X4 Support Pack (2020-2021 Powerstroke 6.7L)

The GDP SCT X4 Support Pack Powerstroke provides custom file support for 2020–2021 6.7L Powerstroke owners running the SCT X4 platform. Ford introduced a locked PCM strategy for these years, which means the SCT device cannot tune these trucks without an approved unlock. This support pack is designed specifically for customers who already have a properly unlocked PCM through SCT and need GDP-calibrated files to complete the setup.

This pack does not include an SCT X4 device, a PCM unlock service, or a hardware tuner. It is strictly a file support package for existing SCT X4 users with a compatible unlock.

Once SCT approves the PCM unlock, GDP provides Powerstroke-specific calibration support that improves shift behavior, throttle feel, and towing confidence. Every file is built around real 6.7L data to maintain reliability and predictable drivability.

Key Features

• File support pack for SCT X4 users
• Designed for 2020–2021 6.7L Powerstroke PCM strategies
• Works only with properly unlocked PCMs
• Smooth throttle control for daily driving
• Stronger gear management for towing
• Support provided through SCT’s tuning platform

Important Requirements

• PCM must be unlocked through SCT prior to file delivery
• Device not included — this is a support pack only
• Not compatible with 2022+ Powerstroke models
• Not for unopened or stock PCMs

The GDP SCT X4 Support Pack Powerstroke is the correct solution for SCT X4 owners who want reliable, well-supported Powerstroke calibrations for the 2020–2021 6.7L platform.