2008 Pontiac G8 GT Procharger HO Intercooled Supercharger System ... GM High-Tech Performance Magazine Hunkered down on Cartek's dyno, this bad black Pontiac put out an SAE-corrected 303.4 horsepower and 331.6 lb-ft. That's a healthy starting point, and also noteworthy is the fact that all pulls with this car were made in 4th gear, which is actually a ... |