Viper Exchange Racing is an American auto racing team. The team, in partnership with Riley Motorsport and TI Automotive, runs two cars in the IMSA Tudor United SportsCar Championship, both Dodge Vipers racing in the GTD class . The No. 33 Viper has scored two victories since the beginning of the 2014 season along with two further top-five finishes. The No. 93 Viper, added in 2015, has added two victories and another top-five finish during the current season. In 2015, Viper Exchange Racing was granted an entry in the 24 Hours of Le Mans, and the No. 53 SRT Viper GTS-R was the only Viper to run in the event.