SPI 997 SLEDGEHAMMER 1000 hp Porsche Conversion Package

Switzer Performance Innovations (SPI) of Ohio, USA, is a renowned tuner of Porsche products, specifically for the Porsche 996 and 997 models. At some point SPI, through owner Tym Switzer wondered what the limits of a tuned 997 would be, how much horsepower a stock engine could take. Soon SPI was working on this ‘experiment' and the results are here for all to see. The car aptly named the