The 5.0 responds to a calibration that's written for how you use the truck. We sharpen throttle response, set spark for your octane, fix the shift schedule the factory set for fuel-economy testing, and correct for tire size and gearing so the speedometer and shift points agree with reality.
Emissions equipment stays in and working. Every file is versioned against your vehicle with a byte-exact revert.
A full stock read of the PCM. Tell us the year — 2018-and-later trucks use a different controller.
Identified, mapped and calibrated on our own stack, with checksums repaired, against your hardware and fuel.
Write the file, send logs back. Revisions run in the same ticket until it is right.
Yes. Tire size and axle ratio are part of every calibration, so speed, shift points and ABS see the right numbers.
We set spark for the fuel you tell us you run. If you switch fuels later, a revision covers it.
No. Catalysts, sensors and monitors stay in and working.