Porsche Cayman 2013 - 2015 ( 981 ) GT4 3.8i 385hp

Real standard and upgraded performance figures for the GT4 3.8i 385hp engine in the Porsche Cayman 2013 - 2015 ( 981 ).

Below: measured output for the GT4 3.8i 385hp in the Porsche Cayman 2013 - 2015 ( 981 ), standard vs. remapped, in both horsepower and torque.

Horsepower (HP)Torque (Nm)
Standard385420
Stage 1405440
Stage 2415450
Make
Porsche
Model
Cayman
Generation
2013 - 2015 ( 981 )
Engine
GT4 3.8i 385hp
Fuel type
Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Porsche Cayman 2013 - 2015 ( 981 ) GT4 3.8i 385hp?

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 GT4 3.8i 385hp make after tuning?

Standard output is 385 HP / 420 Nm; Stage 1 on this engine typically reaches 405 HP / 440 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Porsche Cayman 2013 - 2015 ( 981 ) GT4 3.8i 385hp 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 GT4 3.8i 385hp 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.