Considering an ECU remap for your Mercury Mariner 2.5i 171hp? A Stage 1 remap can take this 2005 - 2012 petrol engine from 171 BHP to 190 BHP and from 232 Nm to 250 Nm of torque (naturally aspirated). This engine scores 4/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercury Mariner can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Mercury Mariner 2.5i 171hp is a 2.5L naturally aspirated petrol engine producing 171 BHP and 232 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 190 BHP and 250 Nm — a gain of around 19 BHP (11%) and 18 Nm (8%).
This engine has limited remap suitability, with gains weighted towards peak power — the improvement is most noticeable at higher RPM. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.
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 |
|---|
| 3.0 V6 240hp | 240 → 260 | +20 | 316 → 335 | +19 | Moderate (4/10) |
Get a personalised remap quote for your Mercury Mariner. 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.
