JET Performance Products has released a new performance module for the 5.4L engines found in the 2007-2008 Shelby GT500. Dynamometer testing has shown that these inline performance tuning devices can provide increases of up to 23 horsepower.   

      Installation is easy and  all you have to do is plug it in. Once in placed the performance module modifies ignition advance, air/fuel ratio, and other parameters to performance tune the vehicle throughout the entire power band. The JET performance module will improve throttle response, increase torque and improve horsepower. In most cases mileage will improve as well. The module can be installed by anyone in about 30 minutes. Sold as part number 70501 the module has a retail price of $329.95. Contact Jet Performance Products (800) 535-1161 www.jetchip.com