Pontiac Grand Prix 2004–2009 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
5.3 V8 303hp
303 hp
325 hp
+22 hp
Figures are typical for a stock vehicle in good condition. Actual results depend on condition, fuel quality and fitted hardware.