The latest intercooling offering for the '07-'12 Shelby GT500 is Steeda's Triple Pass Heat Exchanger (PN555-3707; $749.95). While most heat exhangers route the coolant past the air once or twice, the Steeda unit moves it through three times. It is also equipped with two 800-cfm fans to keep the air flowing even when the vehicle is traveling at low speeds. Steeda says its unit offers 18 percent more cooling than competitive units.