BMW Z1 - 2.5i 170hp

2 ECUs found for this engine. Select an ECU to view available tuning services and pricing.

BMW Z1 2.5i 170hp Engine Specifications

Fuel Type
Petrol
Displacement
2494 cc (2.5L)
Compression Ratio
8.8 : 1
Bore x Stroke
84.0 X 75.0 mm
Engine Code
256K1
Power per Liter
68.2 HP/L

BMW Z1 2.5i 170hp Stage 1 Chiptuning Results

VariantOriginal HPTuned HP+HPOriginal NmTuned Nm+Nm
2.5i 170hp170185+15222240+18

BMW Z1 2.5i 170hp: Before this file is prepared

For the BMW Z1 2.5i 170hp, the uploaded file is the final reference. We check whether it is original or already modified before preparing the order, and we contact you first if the read or selected service does not match the vehicle data.

  • Upload a complete original ECU read from the tool you used, or a TCU read only when the selected service is gearbox tuning.
  • Add the vehicle year, gearbox, read/write tool and any dashboard or diagnostic symptoms.
  • Select only the services that match the actual vehicle hardware and intended legal use.

BMW Z1 2.5i 170hp Frequently Asked Questions

What tuning services are available for the BMW Z1 2.5i 170hp?
WEREMAP offers 28 tuning services across 2 ECU variants for the BMW Z1 2.5i 170hp.
How much does ECU tuning cost for a BMW Z1?
ECU tuning prices for the BMW Z1 2.5i 170hp range from 24 to 600 credits, depending on the ECU variant and tuning service selected.
What ECU does the BMW Z1 2.5i 170hp use?
The BMW Z1 2.5i 170hp is available with the following ECU variants: Continental MS42, Siemens. WEREMAP provides professional tuning files for all of these.

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