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Fiat 500 X
1.4T MultiAir 140hp ( 140 PS / 103 kW ) — Tuning File

140 PS stock power · 2015 - 2018 (2015-2018) · Gasoline
Vehicle Data
BrandFiat
Model500 X
Generation2015 - 2018
Year2015-2018
FuelGasoline
Displacement1,368.0 L
Engine Code55263624
ECUBosch MED17.3.0, Marelli 8GMK
Stock Power140 PS
Stock Torque230 Nm
Tuning Potential
STAGE1
158 PS +18
Power
279 Nm +49
Torque
+18 PS
Gain
STAGE2
165 PS +25
Power
300 Nm +70
Torque
+25 PS
Gain
Available Options
CAT OFF E85 Flexfuel Exhaust flaps open Lambda OFF Pop & Bang Start Stop OFF Vmax OFF
ECU Remap — Fiat 500 X 1.4T MultiAir 140hp ( 140 PS / 103 kW )

The Fiat 500 X 1.4T MultiAir 140hp ( 140 PS / 103 kW ) (Gasoline, 140 PS) can be tuned with a Stage 1 ECU remap to 158 PS — a gain of +18 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 Fiat 500 X 1.4T MultiAir 140hp ( 140 PS / 103 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 1.4T MultiAir 140hp ( 140 PS / 103 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 1.4T MultiAir 140hp ( 140 PS / 103 kW )?
Stage 1 brings the 1.4T MultiAir 140hp ( 140 PS / 103 kW ) from 140 PS to 158 PS — a gain of +18 PS. No hardware modifications are required, making it the most popular and cost-effective tuning option.
Is chiptuning reversible on the Fiat 500 X?
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 Fiat 500 X are delivered within 1–3 hours after uploading your original file.

Order Tuning File for Fiat 500 X

Upload your original file — we deliver the right tuning file for your 1.4T MultiAir 140hp ( 140 PS / 103 kW ). Fast, secure, credit-based. B2B access for chiptuning professionals.

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