After much speculation, Porsche has finally decided to produce a 997-based GT2 in early 2008. The new GT2 will officially be the most powerful 911 to roll off the Porsche production line, with 530 bhp on tap from its twin-turbocharged 3.6-liter flat-6. Based on the 911 Turbo, the GT2 receives larger air intakes that feed two hopped-up variable-geometry turbochargers, which in turn send the intake charge into a new expansion manifold. This manifold is specially designed to keep temperatures down and increase efficiency, so much so that Porsche is claiming up to a 15-percent increase in efficiency over the 911 Turbo, despite the additional power.

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