2004 Pontiac Grand Prix GTP Turbocharger Installation - 401 HP Out Of 231 Cubes
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Talk about a sleeper! Though the Grand Prix GTPs have a good reputation for performance, this particular car is capable of running with Z06 Corvettes and Dodge Vipers-all the result of a turbo upgrade, which can be added to any 3800-powered Grand Prix. View Related Article
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