Designed around the 3.6 TDV8 power-unit, this calibration applies Stage 1 logic to widen the usable torque band while retaining OEM smoothness. DPF regeneration routines and EGR flow are fully disabled, reducing back-pressure and keeping the intake path clean. Boost, smoke and torque limiters are rescaled with balanced air-fuel targets so the automatic gearbox remains within factory load margins during towing or off-road climbs. Cold-start, idle and part-throttle maps are refined to preserve stock fuel economy on cruise, yet bring boost in noticeably earlier for more responsive urban pull-aways.