Porsche Cayenne Turbo Stage 1 vs Stage 2 ECU Tune — 4.0T V8 Power Comparison
Porsche Cayenne Turbo — Stage 1 vs Stage 2 ECU Tune
The Porsche Cayenne Turbo and Turbo GT are powered by a 4.0-litre twin-turbo V8 from the EA825 family — the same platform as the Lamborghini Urus and Audi RS6/RS7. With 550–640 HP stock depending on variant, it's already one of the fastest luxury SUVs on the road. ECU tuning transforms it into a genuine supercar-fighter.
Power Comparison — 4.0T V8 (EA825)
| Specification | Stock (Turbo GT) | Stage 1 | Stage 2 |
|---|---|---|---|
| Peak Horsepower | 640 HP | ~750 HP | ~830 HP |
| Peak Torque | 850 Nm | ~950 Nm | ~1050 Nm |
| Hardware Required | — | None — ECU only | Downpipes + intake |
| 0-100 km/h (est.) | 3.3s | ~2.9s | ~2.6s |
Stage 1 — 750 HP, No Hardware
The EA825's factory turbos are conservatively calibrated — Porsche detunes the engine relative to its hardware capability. A Stage 1 tune increases boost pressure, optimizes ignition maps, and recalibrates fuelling for approximately 110 HP over stock. The Cayenne's ZF 8-speed and PTM all-wheel drive system handle the additional torque seamlessly.
Stage 2 — 830 HP with Exhaust
Stage 2 adds catless downpipes and an upgraded intake. At ~830 HP, the Cayenne Turbo becomes faster than a stock 911 Turbo S in most real-world scenarios — absurd performance from a 2.2-tonne SUV.