Here is a single-turbo kit by Hellion Power Systems for the '11 GT. Proprietor and head turbo-kit designer John Urist said it only had a partial kit on display due to the size of the system. According to Urist, the kit is in its final stages of production and should be ready by the time you read this. It comes standard with a Turbonetics/Hellion 76mm turbo with optional ball-bearing upgrade or Turbonetics 78mm billet wheel (over 900hp capable), Hellion air-to-air front-mounted intercooler, fuel injectors, and all the parts and pieces to install on it on your Mustang. It's available with a Hellion tune or can be ordered as a tuner-kit without it.
Hellion Power Systems