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Porsche Boxster
GT4 - 4.0 420hp ( 420 PS / 309 kW ) — Tuning File

420 PS stock power · 2016 -> (718) (2016-heute) · Gasoline
Vehicle Data
BrandPorsche
ModelBoxster
Generation2016 -> (718)
Year2016-heute
FuelGasoline
Displacement3,995.0 L
Engine CodeDKDA
Stock Power420 PS
Stock Torque420 Nm
Tuning Potential
STAGE1
434 PS +14
Power
434 Nm +14
Torque
+14 PS
Gain
STAGE2
440 PS +20
Power
440 Nm +20
Torque
+20 PS
Gain
Available Options
CAT OFF E85 Flexfuel Exhaust flaps open OPF OFF Pop & Bang Vmax OFF
ECU Remap — Porsche Boxster GT4 - 4.0 420hp ( 420 PS / 309 kW )

The Porsche Boxster GT4 - 4.0 420hp ( 420 PS / 309 kW ) (Gasoline, 420 PS) can be tuned with a Stage 1 ECU remap to 434 PS — a gain of +14 PS without any hardware modifications. Our tuning files target the original ECU software and optimise parameters such as injection timing, boost pressure and fuel maps to unlock the full performance potential.

All tuning files at ecufiles.io are developed and tested by experienced engineers. The original ECU file is always preserved — the remap is 100% reversible at any time.

Frequently Asked Questions
What does an ECU remap do on the Porsche Boxster GT4 - 4.0 420hp ( 420 PS / 309 kW )?
An ECU remap (chiptuning) modifies the engine control unit software to optimise parameters like injection timing, turbo boost pressure and fuel delivery. On the GT4 - 4.0 420hp ( 420 PS / 309 kW ), this typically results in more power, better throttle response and improved fuel efficiency at part load.
How much power gain is possible with Stage 1 on the GT4 - 4.0 420hp ( 420 PS / 309 kW )?
Stage 1 brings the GT4 - 4.0 420hp ( 420 PS / 309 kW ) from 420 PS to 434 PS — a gain of +14 PS. No hardware modifications are required, making it the most popular and cost-effective tuning option.
Is chiptuning reversible on the Porsche Boxster?
Yes. We always save the original ECU file before applying any remap. The tuning can be fully reversed to factory settings at any time.
How fast do I receive the tuning file?
We process orders Monday to Friday from 08:00–20:00 and Saturday from 10:00–16:00. Most tuning files for the Porsche Boxster are delivered within 1–3 hours after uploading your original file.

Order Tuning File for Porsche Boxster

Upload your original file — we deliver the right tuning file for your GT4 - 4.0 420hp ( 420 PS / 309 kW ). Fast, secure, credit-based. B2B access for chiptuning professionals.

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