4.0 V8 Turbo (GT) - 640ch Tuning
Porsche Cayenne — Detailed power and torque gains by stage.
Gains by stage(4)
Power
640 hp
Torque
850 Nm
essence
Power
640→700ch
+60 ch
+9%
Torque
850→950Nm
+100 Nm
+12%
OriginalTuned
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Everything about 4.0 V8 Turbo (GT) - 640ch tuning
Tuning the 4.0 V8 Turbo (GT) - 640ch found in the Porsche Cayenne is one of the most popular performance upgrades. This engine offers excellent potential for power and torque gains.
On ChiptuneMAP, find verified gain data for each stage, compare tuner prices and find the ideal professional for your project.
Gains summary by stage
On the Porsche Cayenne 4.0 V8 Turbo (GT) - 640ch, tuning delivers up to +130 hp and +200 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 640 → 700 hp | 850 → 950 Nm | — |
| Stage 2 | 640 → 770 hp | 850 → 1050 Nm | — |
| E85 Flexfuel | 640 → 640 hp | 850 → 850 Nm | — |
| E85+ | 640 → 700 hp | 850 → 950 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 4.0 V8 Turbo (GT) - 640ch?
Tuning the 4.0 V8 Turbo (GT) - 640ch (Porsche Cayenne) delivers significant power and torque gains depending on the chosen stage. Stage 1, with no hardware modifications, offers the best gain-to-reliability ratio.
Is tuning reliable on the 4.0 V8 Turbo (GT) - 640ch?
Yes, the 4.0 V8 Turbo (GT) - 640ch is known for its reliability when tuned, especially at Stage 1. It's essential to use a certified tuner with maps tailored to your engine.
How much does Porsche Cayenne tuning cost?
Prices vary by stage and tuner. Check our directory to compare rates from professionals near you.
Should I get a tuning box or an ECU remap?
ECU remapping (modifying the engine control unit map) delivers better results and integration than a plug-in tuning box. It's customized for each engine.
How do I find a tuner for my Porsche Cayenne?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.