Porsche 911 2011 - 2015 ( 991 ) 3.8i Turbo 520hp

Real standard and upgraded performance figures for the 3.8i Turbo 520hp engine in the Porsche 911 2011 - 2015 ( 991 ).

Below: measured output for the 3.8i Turbo 520hp in the Porsche 911 2011 - 2015 ( 991 ), standard vs. remapped, in both horsepower and torque.

Horsepower (HP)Torque (Nm)
Standard520710
Stage 1600800
Stage 2620820
Make
Porsche
Model
911
Generation
2011 - 2015 ( 991 )
Engine
3.8i Turbo 520hp
Fuel type
Turbo-Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Porsche 911 2011 - 2015 ( 991 ) 3.8i Turbo 520hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the 3.8i Turbo 520hp make after tuning?

Standard output is 520 HP / 710 Nm; Stage 1 on this engine typically reaches 600 HP / 800 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Porsche 911 2011 - 2015 ( 991 ) 3.8i Turbo 520hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the 3.8i Turbo 520hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.