SCT X4 with CCT Tune Files (2020-2021 Powerstroke 6.7L) Platform:SCT Factory Holset HE351 or Fleece

Factory Holset HE351 or Fleece Performance Cheetah

Replaces GM Part#97188721

Full Manual control of gear selection

Higher pressure applications have a Red Iron Oxide internal color

See our Resources Page for detailed Installation Instructions

SCT X4 with CCT Tune Files (2020-2021 Powerstroke 6.7L) Platform:SCT Factory Holset HE351 or FleeceDesigned for drivers who crave peak performance, this bundle combines the cutting edge technology of the X4 tuner with our exclusive Chaos Custom Tuning Tune Files, tailored to push your diesel engine to its limits. The X4 tuner, renowned for its versatility and user friendly interface, allows you to effortlessly optimize your vehicle's performance with a few simple clicks. From maximizing horsepower and torque to fine tuning throttle response and