DOC #CERT-9C48-50DB-EDC9
12.09.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
12.09.2026
BMW M8
2019 -> 4.4 V8 Bi-Turbo Competition 625hp Petrol
Original
625HP
750 Nm
Stage 1
680HP
850 Nm
+55 HP / +9% +100 Nm / +13%
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.