DOC #CERT-0EB2-4BB4-2E4C
09.09.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
09.09.2026
Mercedes-Benz GL
X166 - 2012 -> 450 367hp Petrol
Original
367HP
500 Nm
Stage 1
510HP
820 Nm
+143 HP / +39% +320 Nm / +64%
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.