Considering an ECU remap for your Toyota Alphard 3.5i 300hp? A Stage 1 remap can take this 2015 - 2023 petrol engine from 300 BHP to 322 BHP and from 362 Nm to 390 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 Toyota Alphard can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Toyota Alphard 3.5i 300hp is a 3.5L naturally aspirated petrol engine producing 300 BHP and 362 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 322 BHP and 390 Nm — a gain of around 22 BHP (7%) and 28 Nm (8%).
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 |
|---|
| 2.5i 180hp | 180 → 202 | +22 | 235 → 256 | +21 | Moderate (4.5/10) |
| 3.5i 280hp | 280 → 295 | +15 | 330 → 352 | +22 | Moderate (4/10) |
Get a personalised remap quote for your Toyota Alphard. 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.
