Chaos Custom Tuning MPVI3 Tune Files (2003-2007 Cummins 5.9L)

The Chaos MPVI4 Cummins 5.9 Tune Files are built for 2003–2007 Ram owners who want better throttle control, stronger low-end torque, and smoother drivability from the 5.9L platform. These calibrations are created specifically for HP Tuners MPVI4 users and give the 5.9 the consistent, predictable behavior it never had from the factory.

Chaos Custom Tuning has a long track record of building responsive, reliable files for the 5.9L Cummins. Whether your truck is stock or lightly upgraded, these tune files improve pedal feel, clean up fueling, and provide steady power delivery while towing, hauling, or daily driving.

Tune Options for Chaos MPVI4 Cummins 5.9L

Single Tune

A targeted calibration built for one performance level. Ideal for trucks that need a dependable file for work, towing, or everyday use.

Support Pack (If Chaos offers it — can be removed if not)

Allows future adjustments for upgrades such as injectors, turbos, or airflow changes.

Why Choose Chaos Custom Tuning?

• Clean throttle behavior with no delay
• Strong torque delivery for towing and heavy work
• Smooth fueling for consistent drivability
• Works with stock or lightly upgraded setups
• Built specifically for HP Tuners MPVI4

These files give the 5.9L Cummins a sharper and more controlled driving feel while preserving the long-term reliability the 5.9 platform is known for.