GMC Sierra · 2017 ->
6.6 V8 445hp Stage 1 tuning
ECU remap / chiptuning file for the GMC Sierra 6.6 V8 445hp. Figures below compare the stock calibration with our tuned file, reviewed by experienced calibrators with safety limits respected.
Power
445 hp
500 hp
+55 hp
Torque
1234 Nm
1350 Nm
+116 Nm
Engine specifications
- Engine code
- DURAMAX L5P
- Fuel
- Diesel
- Displacement
- 6359 cc
- Compression
- 16.0 : 1
- Bore × Stroke
- 103.0 X 99.0 mm
- ECU
- Delco E41