Description
Dinan Stage 1 Performance Engine Software – BMW B58 (O1) Engine is a Dinan staged performance ECU calibration. Supplied for G01/G02/G20/G29.
Key Features:
- Recalibrated engine management: A full re-tune of the factory engine program rather than a boost-only change, with Dinan’s own safety limits left in place.
- Octane-matched options: Dinan publishes calibrations for different fuel grades, so the map suits the pump fuel you actually run.
- Factory safeguards retained: The stock protection strategies stay active, which is what keeps the tune drivable day to day.
- Dealer-style driveability: Dinan calibrations are developed on the dyno and on the road for smooth part-throttle manners, not just peak numbers.
Fitment:
- BMW X3 2018-2024
- BMW X4 2019-2025
Dinan part D900-B58-G-S1. Confirm fitment against your exact model and build date before ordering.
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