GMC Sierra 6.6 V8 445hp Tuning File
Performance Gains
Standard Power
445hp
Tuned Power
500hp
Power Gain
+55hp
Standard Torque
1234Nm
Tuned Torque
1350Nm
Torque Gain
+116Nm
Vehicle Details
Fuel Type: Diesel
Engine Capacity: 6359 CC
About This Tuning File
The GMC Sierra 6.6 V8 445hp (2017 ->) produces 445bhp and 1234Nm in standard form. Our Stage 1 ECU tuning file raises output to 500bhp and 1350Nm, a gain of 55bhp and 116Nm, 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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