BHP+25 hp (20%)
Standard
125 hp
Tuned
150 hp
Torque+50 Nm (25%)
Standard
200 Nm
Tuned
250 Nm
Suitability
Good (7.5/10)Gains Profile
BalancedHeadroom
HighSeat Altea / XL 1.2 TSI 125hp ECU Remapping
Considering an ECU remap for your Seat Altea / XL 1.2 TSI 125hp? A Stage 1 remap can take this 2004 - 2009 petrol engine from 125 BHP to 150 BHP and from 200 Nm to 250 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 Altea / XL can achieve.
How this engine compares
- 13thof 18 Seat Altea / XL engines by power gain
- 28%of the 9,842 engines we hold gain data for see a smaller power increase
- 27%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Seat Altea / XL 1.2 TSI 125hp is a 1.2L turbocharged petrol engine producing 125 BHP and 200 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 150 BHP and 250 Nm — a gain of around 25 BHP (20%) and 50 Nm (25%).
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: Turbo petrol: fuel quality and cooling can influence repeatable performance.
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.
Other Altea / XL 2004 - 2009 Engines
| Engine | BHP | Gain | Torque | Gain |
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