Latest Auto News Blog: Tuner creates 1000-horsepower Porsche 911... with bolt-ons.

Filed under: Aftermarket, Tuners, Supercars, Porsche

Click above for a high-res gallery of the SPI Sledgehammer

Most stock components in a production car can only be pushed so far. Keep adding horsepower and torque, and eventually...well, something is going to break. Some people, however, are all about exploring the limits. Take Tym Switzer, for example. His tuning company, Switzer Performance Innovation of Oberlin, Ohio has come up with a bolt-on tuning package for the Porsche 997 911 Turbo that offers Bugatti Veyron aping performance. So, how much power can the stock internals in Stuttgart's 3.8-liter flat-6 take? Apparently, quite a lot.

The shop has recorded 850 horsepower and 727 lb-ft of torque on the rolling dyno, equating to over 1000 horsepower at the crank. Real world performance should be mind boggling, with the car reportedly reaching 60 miles-per-hour in the mid two second range, blowing through the 1/4 mile in just 9.79 seconds at 146 mph. Pricing looks to be just as fierce, with the Sledgehammer package retailing for $49,990. While that's a lot of coin for a suite of bolt-ons, the performance would appear to speak for itself. Videos of both the dyno run and the 1/4 mile pass can be viewed after the jump as well as SPI's official press release.

Gallery: SPI SLEDGEHAMMER