The 2006 Viper's 8.3 liter V-10 is now rated at 510 hp and 535 lb-ft of torque. It uses the SAE's (Society of Automotive Engineers) new hp and torque ratings.
The 2003-2005 Viper SRT10 had 500 hp and 525 lb-ft of torque.
The Dodge Viper SRT10 also has 14-inch front and rear vented brake rotors with Brembo four-piston calipers.