DOC #CERT-7285-4D96-18F8
10.09.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
10.09.2026
BMW 5 serie
E39 - 1995 - 2003 530i 231hp Petrol
Original
231HP
300 Nm
Stage 1
246HP
325 Nm
+15 HP / +6% +25 Nm / +8%
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.