DOC #CERT-EE51-7365-E004
09.09.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
09.09.2026
Porsche 911
2004 - 2011 ( 997 ) GT3 3.8i 435hp Petrol
Original
435HP
430 Nm
Stage 1
455HP
450 Nm
+20 HP / +5% +20 Nm / +5%
Estimated Power and Torque Curve
Stage 2 Available
470 HP / 470 Nm
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.