Introduced here, Stage 1 mapping broadens the 2-litre turbo’s torque window while maintaining factory smoothness. Boost, load and ignition tables are refined for crisper low-gear response, yet cruising economy remains stock. Vmax restriction is lifted; all OBD monitors stay active for emissions checks. Cold-start, idle and part-throttle areas are recalibrated so the car drives OEM-clean but with added urgency when you lean on the pedal.
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Opel, Speedster, Bosch and ME1.5.5 are trademarks of their respective companies.
Names are used solely for identification.
File supplied exclusively for competition or off-road use.
The seller is not affiliated with the vehicle OEM or ECU manufacturer.
Unauthorised resale or redistribution is prohibited.
Names are used solely for identification.
File supplied exclusively for competition or off-road use.
The seller is not affiliated with the vehicle OEM or ECU manufacturer.
Unauthorised resale or redistribution is prohibited.