Considering an ECU remap for your Subaru Legacy 3.6i 256hp? A Stage 1 remap can take this 2015 - 2018 petrol engine from 256 BHP to 273 BHP and from 335 Nm to 353 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 Subaru Legacy can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Subaru Legacy 3.6i 256hp is a 3.6L naturally aspirated petrol engine producing 256 BHP and 335 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 273 BHP and 353 Nm — a gain of around 17 BHP (7%) and 18 Nm (5%).
This engine has limited remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. 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 |
|---|
| 2.0 D Boxer 150hp | 150 → 180 | +30 | 350 → 410 | +60 | Good (7/10) |
Get a personalised remap quote for your Subaru Legacy. 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.
