Alfa Romeo 166 2.4 JTD 140hp Remap

The Alfa Romeo 166 2.4 JTD 140hp is a 2.4L turbocharged diesel engine producing 140 BHP and 304 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 173 BHP and 382 Nm — a gain of around 33 BHP (24%) and 78 Nm (26%).

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.

Considerations: Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.. Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.

Fuel economy note: possible improvement with conservative driving.

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.