DOC #CERT-F819-5C1B-DB2A
09.09.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
09.09.2026
Harley Davidson 883 Xl
2011-2013 53HP 15974 Petrol
Original
53HP
68 Nm
Stage 1
59HP
73 Nm
+6 HP / +11% +5 Nm / +7%
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.