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BMW Z4 2.5si 218hp

E85 - 2003 - 2008

218 Original HP
235 Modified HP
250 Original NM
270 Modified NM
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BMW Z4

BMW Z4 E85 - 2003 - 2008 2.5si 218hp

Key Specifications

Generazione E85 - 2003 - 2008
Carburante Petrol
Codice motore N52B25A
ECU Siemens/Continental MSV70
Rapporto compressione 11.0:1
Alesaggio x Corsa 82.0 X 78.8 mm
Power 218 → 235 hp +17 hp
Torque 250 → 270 Nm +20 Nm
Power
235 HP
+17 HP (+7.8%)
Original 218 HP
Stage 1 235 HP
Torque
270 NM
+20 NM (+8%)
Original 250 NM
Stage 1 270 NM

Power Graph

Original Power 218HP
Original Torque 250Nm
Power After Remap 235HP
Torque After Remap 270Nm

Discover Our Tuning Solutions

Frequently Asked Questions - BMW Z4

The cost of Stage 1 tuning for BMW Z4 2.5si 218hp varies depending on the ECU (Siemens/Continental MSV70) and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for BMW Z4 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 218 to 235 HP (+8%) is within safe parameters.

With Stage 1 tuning, BMW Z4 goes from 218 HP to 235 HP (+17 HP) and from 250 Nm to 270 Nm (+20 Nm).

Stage 1 remapping takes it from 218 HP to 235 HP (+17 HP, +8%) and torque from 250 Nm to 270 Nm (+20 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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BMW
BMW Z4 2.5si 218hp
+17 HP
235 HP