BMW 1 Series 120i 177hp (1598cc) Remap

The BMW 1 serie 120i 177hp (1598cc) is a 1.6L naturally aspirated petrol engine producing 177 BHP and 250 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 220 BHP and 310 Nm — a gain of around 43 BHP (24%) and 60 Nm (24%).

This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as high, based on the percentage gain available from the factory output.

From a technical perspective, the transmission is many variants use zf 8-speed automatic (where fitted); manuals also exist..

Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.

All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.