DOC #CERT-9905-0E27-933B
25.10.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
25.10.2026
Yamaha Xt 660
2004-2016 • xt 660 x 48HP • Petrol
Original
48HP
61 Nm
➤
Stage 1
53HP
66 Nm
▲ +5 HP / +10% ▲ +5 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.