Volkswagen Jetta 1.2 TSI 105hp Remap

The Volkswagen Jetta 1.2 TSI 105hp is a 1.2L turbocharged petrol engine producing 105 BHP and 175 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 140 BHP and 225 Nm — a gain of around 35 BHP (33%) and 50 Nm (29%).

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 ECU is typically a Bosch MED17 (likely), and the transmission is manual and dsg/s tronic automatics are common depending on model/engine..

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.