opel-astra-j

New Tuning File Available: Opel Astra-J OPC 2.0 Turbo ACDelco ECU Calibration File | Software 12656377 / SW G12083 | 12656378 - Stage 2 & Stage 2 Sport-button calibrations for Opel Astra-J OPC — ECU 12656378, prod 12650666 — faster boost onset and dual road/track personalities. 💬 Discussion &...

With Stage 2 mapping applied, the 2.0-litre turbo Astra-J OPC gains a broader, more elastic torque window while preserving OEM smoothness. Vmax restriction is lifted, all torque, load and boost limiters are raised, and ignition tables are refined for 98 RON fuel. Pressing the OPC/Sport button...

New Tuning File Available: Opel Astra-J 1.4 Turbo ACDelco ECU Calibration File | Software 55581092 / ECU 55581098 | G10004 - Stage 1 & 2 calibrations for Opel Astra-J 1.4 Turbo — ECU 55581098, prod 55581159 — sharper throttle, earlier boost and selectable road/track modes. 💬 Discussion &...

Stage 1 appears early in this file set, followed by Stage 2, each broadening the 1.4 Turbo’s usable torque band while keeping OEM smoothness. DPF is not fitted, but all EGR functions are disabled for a cleaner intake. Boost, load and torque limiters are lifted with conservative ignition tables...