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The Ohio-based performance specialist Swtizer Performance Innovations (SPI), came out of relative seclusion of several years with the completion and introduction of the SLEDGEHAMMER. The SLEDGEHAMMER is a Porsche 997 model that has been modified to tremendously exceed its original performance level.

Receiving acute attention and commitment from SPI the 997 twin-turbo can now deliver in excess of 850 all-wheel horsepower on race fuel – that’s translated into in excess of 1000hp on the crank!

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Switzer Performance Innovations (SPI) unveils 1000 hp Porsche 911 Sledgehammer

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