The M113 5.0L Na Performance Package Includes.
ECU Tune ( via OBD2 cable from a laptop)
TCU Tune ( Gearbox computer, tuned unit supplied
- unplug old... plug in new unit )
Performance Spark Plugs, (16 plugs)
Performance Air Filters
This package will Gain around 15 & 15TQ
At the wheels, maybe more.