DOC #CERT-CC57-1759-1763
08.09.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
08.09.2026
BMW Z4
E89 - 2009 - 2018 1.8i 156hp Petrol
Original
156HP
270 Nm
Stage 1
260HP
380 Nm
+104 HP / +67% +110 Nm / +41%
Estimated Power and Torque Curve
Customer
Chassis
Date
Signature
Stamp
NOTICE: This document represents estimated values based on database information. It is not valid as official certification without the original handwritten signature and physical stamp of the authorized technician. Performance values may vary based on vehicle condition, fuel quality and operating environment.