DOC #CERT-58C1-C10D-B769
07.09.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
07.09.2026
John Deere 8Rserie
All 8370 RT - 9.0L - 370hp Diesel
Original
370HP
1685 Nm
Stage 1
400HP
1830 Nm
+30 HP / +8% +145 Nm / +9%
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.