07-11 Shelby GT500 Heat Exchanger with Dual Fans Designed by Shelby, Revan Racing and C/R, this extreme duty heat exchanger uses a proprietary NASCAR core, which features a single row core with a dual pass system, and twin electric fans. The intercooler and heat exchanger within the Shelby GT500 build higher temperatures in normal, spirited or on track driving conditions. With a stock GT500 the car has an on board computer program begins to curb spark and timing at 100 degrees. 100 degrees within the intercooler and heat exchanger can be achieved within minutes of starting the vehicle. After market tuners change this parameter to begin the timing and spark curb trend at 130 degrees to 140 degrees. Almost all supercharged vehicle owners can comprehend the power difference in their car when they first start it and drive versus 20 minutes later when the car just doesn’t seem to run as well or willing to "Spin the tires" This is what is called "Heat Soak." A good way to prevent heat soak and lost power from warmer intercooler temps is to install a larger heat exchanger. In this case Shelby not only has designed a larger more efficient heat exchanger than the stock unit but they've also added dual puller fans to help improve the air flow across the heat exchangers cooling fins. Application: 2007-2011 Shelby GT500 or 2005 and up Mustang GT's with superchargers installed.