New from Whipple Superchargers is the 2.9L Supercharger Kit (Tuner) for the 2011 Mustang GT 5.0L Coyote. For the guy serious about making big power, no longer do you need to purchase a 2.3L kit and then spend another $3,300+ to upgrade to the 2.9L, the kit is done now and saves you several...