616rwhp from Dodge Viper SRT10 With Just 2 Mods

With all the current obsession over numbers as the empirical measurement of automotive performance, how's 616rwhp sound? With just two mods?

As show in the video above, the snake charmers (yes, worst pun ever) over at Hennessey (the viper tuners, not the booze distillery) managed to get 616rwhp out of a 2008 Dodge Viper SRT10 with just a set of headers and catback exhaust. Some say this setup has been good for multiple 10 second passes at over 135mph!