3.8i DFI Carrera GTS - 408ch Tuning
Porsche 997 — Detailed power and torque gains by stage.
Gains by stage(4)
Power
408 hp
Torque
420 Nm
essence
Power
408→428ch
+20 ch
+5%
Torque
420→445Nm
+25 Nm
+6%
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Everything about 3.8i DFI Carrera GTS - 408ch tuning
Tuning the 3.8i DFI Carrera GTS - 408ch found in the Porsche 997 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 997 3.8i DFI Carrera GTS - 408ch, tuning delivers up to +62 hp and +70 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 408 → 428 hp | 420 → 445 Nm | — |
| Stage 2 | 408 → 470 hp | 420 → 490 Nm | — |
| E85 Flexfuel | 408 → 408 hp | 420 → 420 Nm | — |
| E85+ | 408 → 428 hp | 420 → 445 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 3.8i DFI Carrera GTS - 408ch?
Tuning the 3.8i DFI Carrera GTS - 408ch (Porsche 997) 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 3.8i DFI Carrera GTS - 408ch?
Yes, the 3.8i DFI Carrera GTS - 408ch 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 997 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 997?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.