GMC Envoy 2002–2010 tuning files
Typical stock and Stage 1 figures for each engine. Open an engine for torque, ECU and technical data.
Engine
Stock
Stage 1
Gain
4.2i - 270hp
270 hp
290 hp
+20 hp
5.3 V8 290hp
290 hp
310 hp
+20 hp
5.3 V8 300hp
300 hp
320 hp
+20 hp
Figures are typical for a stock vehicle in good condition. Actual results depend on condition, fuel quality and fitted hardware.