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.
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.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 1.6i 102hp | 102 → 112 | +10 | 148 → 165 | +17 | Moderate (4.5/10) |
| 1.9 TDI 105hp |
| 105 → 140 |
| +35 |
| 250 → 320 |
| +70 |
| Excellent (8/10) |
| 1.4 TSI 125hp | 125 → 150 | +25 | 200 → 265 | +65 | Good (7.5/10) |
| 2.0 TDI 140hp | 140 → 175 | +35 | 320 → 395 | +75 | Good (7.5/10) |
| 2.0 FSI 150hp | 150 → 160 | +10 | 200 → 215 | +15 | Moderate (4/10) |
| 1.8 TSI 160hp | 160 → 210 | +50 | 250 → 340 | +90 | Excellent (8/10) |
| 2.0 TDI 170hp | 170 → 205 | +35 | 350 → 430 | +80 | Good (7.5/10) |
| FR 2.0 TFSI 200hp | 200 → 250 | +50 | 280 → 360 | +80 | Good (7.5/10) |
Get a personalised remap quote for your Seat Altea / XL. We'll connect you with a trusted professional in your area.
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 before proceeding.
