Opel Astra-J OPC 2.0 Turbo ACDelco ECU Calibration File | Software 12656377 / SW G12083 | Stage 2 12656378
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Stage 2 & Stage 2 Sport-button calibrations for Opel Astra-J OPC — ECU 12656378, prod 12650666 — faster boost onset and dual road/track personalities.
- Seller Bin
- Creation date
Stage 2 & Stage 2 Sport-button calibrations for Opel Astra-J OPC — ECU 12656378, prod 12650666 — faster boost onset and dual road/track personalities.
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 unlocks the higher “SB” file, giving sharper throttle maps and over-run burble, yet cruising remains factory-quiet when the button is off. Cold-start, idle and part-throttle areas are polished so daily drivability and economy stay intact.
Overview Feature list Copyright info Releases (1)
| Parameter | Value |
|---|---|
| Producer: | Opel |
| Series: | Astra-J OPC |
| Model: | 2.0 Turbo |
| Model Year: | 2012 |
| Type (Engine): | Turbo-Petrol |
| Displacement: | 2.0 L |
| Output: | 280 PS / 206 kW |
| Gear: | 6-speed manual |
| Producer (ECU): | ACDelco |
| Build (ECU): | Undefined |
| ECU-Nr. Prod: | 12650666 |
| ECU-Nr. ECU: | 12656378 |
| Software: | 12656377 |
| SW-Version: | G12083 |
| Checksum: | All CS ok Opel 2010 Delco5 |
| CPU: | Freescale PowerPC |
| Eprom 8-Bit sum: | C5AB |
| Nested Versions: | 2 modified versions included (Stage 2, Stage 2 Sport-button) + Original for reference |
| Project Type: | Complete binary file |
| Details: | st2 + st2 SB |
| Project Size: | 2 097 152 bytes |
| Read Hardware: | CMD Flash |
All tuning files were acquired through official EVC.de resellers and verified on a professional dynamometer. Each calibration corresponds to the developer listed in the “Modified By” section — performance graphs may be available on their website. These files are intended for motorsport or off-road use only. Ensure proper installation and do not operate the vehicle aggressively without first confirming mechanical condition. The seller accepts no responsibility for misuse or non-compliant road use.