For this 1.3 CDTI the calibration introduces **Stage 1** refinement focused on earlier boost and smoother low-gear pull. A secondary Stage 2 file disables the DPF system entirely while retaining all diagnostics for sensors now removed. Both variants zero EGR flow, raise boost/smoke/torque ceilings and realign throttle mapping to make the 5-speed hatch feel livelier in traffic without upsetting cruise economy. Cold-start, idle and part-throttle cells are polished so daily manners stay stock-like even after the DPF hardware is taken out.