Considering an ECU remap for your Porsche 911 GT3 RS 3.8i 435hp? A Stage 1 remap can take this 2004 - 2011 ( 997 ) petrol engine from 435 BHP to 455 BHP and from 430 Nm to 450 Nm of torque (naturally aspirated). This engine scores 3/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Porsche 911 can achieve.
The Porsche 911 GT3 RS 3.8i 435hp is a 3.8L naturally aspirated petrol engine producing 435 BHP and 430 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 455 BHP and 450 Nm — a gain of around 20 BHP (5%) and 20 Nm (5%).
This engine has low 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.. High tuned torque: check transmission torque capacity and service history.
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 |
|---|---|---|---|---|---|
| Carrera 3.6i 325hp | 325 → 340 | +15 | 370 → 395 |
| +25 |
| Moderate (4/10) |
| Carrera 3.6i 345hp | 345 → 360 | +15 | 390 → 410 | +20 | Limited (3/10) |
| Carrera S 3.8i 355hp | 355 → 375 | +20 | 400 → 420 | +20 | Limited (3.5/10) |
| Carrera 3.8i 376hp | 376 → 390 | +14 | 415 → 435 | +20 | Limited (3/10) |
| Carrera S 3.8i 385hp | 385 → 405 | +20 | 420 → 440 | +20 | Limited (3/10) |
| Carrera GTS 3.8i 408hp | 408 → 425 | +17 | 420 → 445 | +25 | Limited (3.5/10) |
| GT3 3.6i 415hp | 415 → 435 | +20 | 405 → 430 | +25 | Limited (3.5/10) |
| GT3 RS 3.6i 415hp | 415 → 435 | +20 | 405 → 430 | +25 | Limited (3.5/10) |
| GT3 3.8i 435hp | 435 → 455 | +20 | 430 → 450 | +20 | Limited (3/10) |
| GT3 RS 3.8i 450hp | 450 → 470 | +20 | 430 → 470 | +40 | Limited (3.5/10) |
| 3.6i Turbo 480hp | 480 → 520 | +40 | 620 → 720 | +100 | Good (6/10) |
| 3.8i Turbo 500hp | 500 → 550 | +50 | 650 → 740 | +90 | Good (6/10) |
| GT3 RS 4.0i 500hp | 500 → 520 | +20 | 460 → 480 | +20 | Limited (3/10) |
| GT2 3.6i 530hp | 530 → 580 | +50 | 680 → 800 | +120 | Moderate (4.5/10) |
| 3.8i Turbo-S 530hp | 530 → 580 | +50 | 700 → 800 | +100 | Good (6/10) |
| GT2 RS 3.6i 620hp | 620 → 650 | +30 | 700 → 800 | +100 | Limited (3.5/10) |
Get a personalised remap quote for your Porsche 911. 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.
