BMW 1 Series 118i (1.5T) 140hp Remap

The BMW 1 serie 118i (1.5T) 140hp is a 1.5L turbocharged petrol engine producing 140 BHP and 220 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 180 BHP and 300 Nm — a gain of around 40 BHP (29%) and 80 Nm (36%).

This engine scores highly for 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: Turbo petrol: fuel quality and cooling can influence repeatable performance.. Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.

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.