DOC #CERT-8359-5107-988B
17.10.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
17.10.2026
BMW M4
G82 - 2021 -> • 3.0 480hp • Petrol
Original
480HP
550 Nm
➤
Stage 1
640HP
800 Nm
▲ +160 HP / +33% ▲ +250 Nm / +45%
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.