Porsche 911 (996) 1997-2004 Carrera 2 40th 345bhp remap figures
Stock, this 1997-2004 Porsche 911 petrol (3.6L) produces 345bhp and 370Nm. Our expected figures for a Stage 1 remap are 370bhp and 405Nm, an expected gain of up to 25bhp and 35Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 345 bhp | 370 bhp | +25 bhp |
| Torque | 370 Nm | 405 Nm | +35 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 345 bhp | 370 Nm | |
| Stage 1Maximum software-only performance | 370 bhp | 405 Nm | +25 bhp +35 Nm |
| Stage 1 EcoPerformance with economy in mind | 364 bhp | 402 Nm | +19 bhp +32 Nm |
| Eco mapEconomy first | 362 bhp | 400 Nm | +17 bhp +30 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your 911
Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.
The ECU recorded for this variant is a Bosch M5.2.2. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Porsche 911 Carrera 2 40th 345bhp?
We expect 370bhp and 405Nm against 345bhp and 370Nm as standard: up to +25bhp and +35Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Porsche 911 Carrera 2 40th 345bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 364bhp and 402Nm expected. The Eco map is economy first: 362bhp and 400Nm. Both still sit above the standard 345bhp and 370Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Porsche 911 figures
Other petrol variants
- Carrera GT3 360bhp 1997-2004
- Carrera 2 320bhp 1997-2004
- Carrera GT3 381bhp 1997-2004
- Carrera 300bhp 1997-2004
- Carrera 4 Turbo 420bhp 1997-2004
- Turbo 420bhp 1997-2004
- Turbo S 450bhp 1997-2004
- Carrera GT2 483bhp 1997-2004
All petrol 911 (996) variants · 911 (996) 1997-2004 overview · All Porsche figures