BHP+17 hp (7%)
Standard
256 hp
Tuned
273 hp
Torque+18 Nm (5%)
Standard
335 Nm
Tuned
353 Nm
Suitability
Moderate (4/10)Gains Profile
Limited headroomHeadroom
LowSubaru Legacy 3.6i 256hp ECU Remapping
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.
How this engine compares
- 4thof 6 Subaru Legacy engines by power gain
- 12%of the 9,842 engines we hold gain data for see a smaller power increase
- 7%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
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.
Considerations
!Naturally aspirated engine: gains are usually limited; results vary widely.
Other Legacy 2015 - 2018 Engines
| Engine | BHP | Gain | Torque | Gain |
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