Considering an ECU remap for your Lexus IS 350i V6 311hp? A Stage 1 remap can take this 2021 -> ... petrol engine from 311 BHP to 320 BHP and from 376 Nm to 399 Nm of torque (naturally aspirated). This engine scores 3.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Lexus IS can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Lexus IS 350i V6 311hp is a 3.5L naturally aspirated petrol engine producing 311 BHP and 376 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 320 BHP and 399 Nm — a gain of around 9 BHP (3%) and 23 Nm (6%).
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 |
|---|
| 300 (2.0T) 241hp | 241 → 265 | +24 | 350 → 410 | +60 | Good (6/10) |
| 300i V6 260hp | 260 → 277 | +17 | 320 → 340 | +20 | Moderate (4/10) |
Get a personalised remap quote for your Lexus IS. 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.
