Gemballa Avalanche 600 GT2 EVO

We've already sampled the mind-blowing power of the 997 Porsche GT2, but for Gemballa, it's never enough. The German tuning firm is offering a new kit for both the GT2 and its all-wheel-drive sibling, the Porsche Turbo, in the form of the Avalanche 600 EVO.

As it's name would imply, Gemballa has coaxed 600 bhp (not to mention 619 lb.-ft. of torque) from Porsche's turbocharged flat-six through the use of a new intercooler, race exhaust and a retuned ECU. The dash to 62 mph is dispatched in 3.5 seconds and the top speed has been increased to 199 mph.