Porsche 911 Turbo with 1000 hp by SPI

Tym Switzer has been quietly running Switzer Performance Innovations (SPI) in Oberlin, Ohio for several years, building show-quality exhausts and bolt-on performance products for twin-turbo Porsche 996 and 997 models.

With his latest project, Tym and the crew at SPI wanted to test the limits of what would be possible with stock 997 internals. His crew had no problem getting 700 wheel horsepower from 997 turbo engines. This was not enough and they wanted to go a bit further.

Continue to read: Porsche 911 Turbo with 1000 hp by SPI