GMC Sierra 6.6 Duramax 365hp Tuning File
Performance Gains
Standard Power
365hp
Tuned Power
395hp
Power Gain
+30hp
Standard Torque
894Nm
Tuned Torque
945Nm
Torque Gain
+51Nm
Vehicle Details
Fuel Type: Diesel
Engine Capacity: 6599 CC
Control Modules
Bosch EDC16C42
Bosch EDC16C41
About This Tuning File
The GMC Sierra 6.6 Duramax 365hp (1999 - 2007) produces 365bhp and 894Nm in standard form. Our Stage 1 ECU tuning file raises output to 395bhp and 945Nm, a gain of 30bhp and 51Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.
Other Engine Variants
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