Porsche Cayenne 955 - 2002 - 2007 S 4.5 V8 340hp Stage 1 Chip Tuning · ECU Remap
Catalog reference — not a measured result for this vehicle.
Catalog reference: power 340 → 360 bhp, difference +20 bhp (6%); torque 420 → 445 Nm. Actual results depend on vehicle condition and measurement.
Figures are typical ranges; exact results depend on the vehicle's hardware and dyno measurement.
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Porsche Cayenne 955 - 2002 - 2007 S 4.5 V8 340hp
Book an appointment Find a centreReversible: Yes, the original software is kept
Porsche Cayenne 955 - 2002 - 2007 S 4.5 V8 340hp — Stage 1 Remap
Stage 1 re-calibrates the ECU software — boost, fuelling and ignition maps — within the factory hardware's safe tolerances. No hardware changes are required.
Stage 1 Remap
Software that optimises the engine's power and torque maps within safe limits.
Stage 2 Remap
Advanced software matched to hardware upgrades such as a sport exhaust or induction kit.
Pop & Bang
Software that creates exhaust crackle on lift-off.
Speed Limiter (Vmax) Removal
Removing the factory top-speed limiter from the software.
DTC / Fault Code Removal
Switching off selected diagnostic trouble codes (DTC) in the ECU software.
Where can this be done near you?
Prime Chiptuning applies the software at its own centres in Türkiye. Abroad, our partners carry out the work with the same files, and workshops can order the file directly.
About the high-performance large-displacement petrol engine (V8, V10, V12, W12, AMG, RS)
This group covers the large-displacement, mostly twin-turbo or supercharged petrol engines of Mercedes-AMG, Audi RS/S, Bentley, Porsche, Maserati, McLaren and similar brands. They make high power from the factory and are managed with tight temperature, knock and torque limits.
How a Stage 1 remap works on the Porsche Cayenne 955 S 4.5 V8 340hp
A Stage 1 remap looks at torque request, boost pressure, ignition and gearbox torque limits together. Gains are clear on twin-turbo engines; on large naturally aspirated engines the effect of software is more limited. Cooling and gearbox limits are kept.
Pre-remap checklist
- Spark plugs, coils and fuel quality (high octane recommended).
- Cooling system and intercooler efficiency.
- Gearbox torque capacity and oil condition.
- Fault memory and any previous software or hardware changes.
On these engines the result depends heavily on hardware and fuel; figures are confirmed by measurement.
This section is based on Prime Chiptuning workshop experience; the power and torque figures come from the catalogue measurement above.
ECUs used in Porsche vehicles
If you know your ECU family, its page lists exactly which solutions are available for it.
Porsche Cayenne — Power Calculator
| Engine | Power | Gain |
|---|---|---|
| 3.2 V6 250hp | 250 → 270 bhp | +20 bhp |
| 4.5 V8 Turbo 450hp | 450 → 500 bhp | +50 bhp |
| 4.5 V8 Turbo 500hp | 500 → 530 bhp | +30 bhp |
| S 4.5 Turbo 520hp | 520 → 560 bhp | +40 bhp |