Performance ECU calibration for Opel Astra K 1.4 Turbo (2016, 125PS) with ACDelco control unit. This full binary file based on software 12679663 (G16032 calibration) offers a Stage 1 remap focused on better midrange torque and improved throttle response. Ideal for safe daily driving with a touch of performance refinement, this tune keeps all diagnostics and protections active.