GMC Sierra · 2008 - 2013
4.8 V8 302hp Stage 1 tuning
ECU remap / chiptuning file for the GMC Sierra 4.8 V8 302hp. Figures below compare the stock calibration with our tuned file, reviewed by experienced calibrators with safety limits respected.
Power
302 hp
320 hp
+18 hp
Torque
414 Nm
435 Nm
+21 Nm
Engine specifications
- Engine code
- L20
- Fuel
- Petrol
- Displacement
- 4807 cc
- Compression
- 8.8 : 1
- Bore × Stroke
- 96.0 X 83.0 mm
- ECU
- Delco E38