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. His 1000-horsepower “Sledgehammer” Porsche conversion package is his lasted project. It is a bolt-on performance package for 997 twin-turbo Porsches that delivers over 850 all-wheel horsepower on race fuel.
A finished Switzer Sledgehammer is certainly an amazing car. Switzer reports that (despite backing off the throttle early) the first Sledgehammer went almost 195 mph at the Texas mile. Additional performance figures read like the stuff of legend: consistent 0-60 times in the mid 2's, less than 5 seconds to go from 60-130 mph, and 9.8-second quarter mile elapsed times with trap speeds regularly in excess of 145 mph.
In addition to extensive ECU tuning, the Sledgehammer package includes SPI's in-house developed headers and sport exhaust, as well as SPI's MONSTER intercooler package (shown) and SPI-massaged GT30R turbos. More details on Switzer's SLEDGEHAMMER conversion can be found on SPI's website. The SLEDGEHAMMER package retails for 49990USD, and is available through SPI. Contact SPI for more information.