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Porsche 911 GT3 3.8i 475hp

2011 - 2015 ( 991 )

475 Original HP
500 Modified HP
440 Original NM
470 Modified NM
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Porsche 911

Porsche 911 2011 - 2015 ( 991 ) GT3 3.8i 475hp

Key Specifications

Generazione 2011 - 2015 ( 991 )
Carburante Petrol
Power 475 → 500 hp +25 hp
Torque 440 → 470 Nm +30 Nm
Power
500 HP
+25 HP (+5.3%)
Original 475 HP
Stage 1 500 HP
Torque
470 NM
+30 NM (+6.8%)
Original 440 NM
Stage 1 470 NM

Power Graph

Original Power 475HP
Original Torque 440Nm
Power After Remap 500HP
Torque After Remap 470Nm

Discover Our Tuning Solutions

Frequently Asked Questions - Porsche 911

The cost of Stage 1 tuning for Porsche 911 GT3 3.8i 475hp varies depending on the ECU and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for Porsche 911 typically takes 1-2 hours of work. Time may vary depending on the ECU type.

Yes, our Stage 1 tunes are developed respecting the engine's safety margins. The power increase from 475 to 500 HP (+5%) is within safe parameters.

With Stage 1 tuning, Porsche 911 goes from 475 HP to 500 HP (+25 HP) and from 440 Nm to 470 Nm (+30 Nm).

Stage 1 remapping takes it from 475 HP to 500 HP (+25 HP, +5%) and torque from 440 Nm to 470 Nm (+30 Nm). These figures refer to the standard engine, with no hardware modifications.

A remap changes the factory calibration, so on a vehicle still under manufacturer warranty it may affect coverage on powertrain components. Performance tuning keeps all emission systems working; deactivating emission devices such as DPF, EGR or AdBlue is not road-legal in the EU and UK and is intended for off-road, motorsport or export use only.

With a normal driving style consumption usually stays the same or drops slightly: the extra torque at low rpm means less throttle for the same speed. Consumption goes up only if you actually use the additional power.

Yes. The original file is read and stored before any modification, so the vehicle can be returned to the factory calibration at any time.

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Porsche
Porsche 911 GT3 3.8i 475hp
+25 HP
500 HP