Chaos Custom Tuning MPVI4 Tune Files (2017-2019 Duramax L5P 6.6L)

The Chaos MPVI4 L5P Tune Files are built for 2017–2019 Duramax 6.6L owners who want stronger throttle response, improved torque delivery, and consistent drivability from the L5P platform. These calibrations are designed specifically for HP Tuners MPVI4 users and give the 6.6L a more controlled and predictable driving feel.

Chaos Custom Tuning is known for clean fueling, stable throttle behavior, and reliable power for daily use, towing, or light performance setups. Whether your truck is mostly stock or lightly upgraded, these tune files provide smoother response and steady power under load.

Tune Options for Chaos MPVI4 L5P Tune Files

Chaos typically provides multiple performance levels (Level 1–5) depending on customer needs.
Levels are crafted to support everything from towing and commuting to more aggressive driving on trucks with supporting upgrades.

(If you want the exact HP numbers listed, provide them — I can add them.)

What’s Included

• Custom ECM tune files for the 2017–2019 L5P
• Delivered for flashing with HP Tuners MPVI4

What You Need

• HP Tuners MPVI4 interface
• 8 HP Tuners Universal Credits (typical for L5P tuning)

Why Choose Chaos Custom Tuning?

• Sharp, clean throttle feel
• Strong torque delivery for loaded driving
• Smooth fueling for predictable drivability
• Works with stock or lightly modified trucks
• Backed by proven tuning experience