3.8 DFI Carrera S - 400ch Tuning
Porsche 991 — Detailed power and torque gains by stage.
Gains by stage(4)
Power
400 hp
Torque
440 Nm
essence
Power
400→420ch
+20 ch
+5%
Torque
440→460Nm
+20 Nm
+5%
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Everything about 3.8 DFI Carrera S - 400ch tuning
Tuning the 3.8 DFI Carrera S - 400ch found in the Porsche 991 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 991 3.8 DFI Carrera S - 400ch, tuning delivers up to +60 hp and +70 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 400 → 420 hp | 440 → 460 Nm | — |
| Stage 2 | 400 → 460 hp | 440 → 510 Nm | — |
| E85 Flexfuel | 400 → 400 hp | 440 → 440 Nm | — |
| E85+ | 400 → 420 hp | 440 → 460 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 3.8 DFI Carrera S - 400ch?
Tuning the 3.8 DFI Carrera S - 400ch (Porsche 991) 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 3.8 DFI Carrera S - 400ch?
Yes, the 3.8 DFI Carrera S - 400ch 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 991 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 991?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.