BHP+30 hp (24%)
Standard
125 hp
Tuned
155 hp
Torque+70 Nm (35%)
Standard
200 Nm
Tuned
270 Nm
Suitability
Good (7.5/10)Gains Profile
Torque-focusedHeadroom
HighSeat Leon 1.4 TSI 125hp ECU Remapping
Considering an ECU remap for your Seat Leon 1.4 TSI 125hp? A Stage 1 remap can take this 5F MK2 - 2017 - 2019 petrol engine from 125 BHP to 155 BHP and from 200 Nm to 270 Nm of torque (turbocharged). This engine scores 7.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Seat Leon can achieve.
How this engine compares
- 44thof 73 Seat Leon engines by power gain
- 39%of the 9,842 engines we hold gain data for see a smaller power increase
- 55%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Seat Leon 1.4 TSI 125hp is a 1.4L turbocharged petrol engine producing 125 BHP and 200 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 155 BHP and 270 Nm — a gain of around 30 BHP (24%) and 70 Nm (35%).
This engine scores highly for remap suitability, with gains weighted towards torque — you will notice the difference most strongly in mid-range pulling power and in-gear acceleration. The tuning headroom is classified as high, based on the percentage gain available from the factory output.
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.
Considerations
!Turbo petrol: fuel quality and cooling can influence repeatable performance.
!Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.