Upgrading your supercharger to your 2003-04 Cobra is the best way to get the most power out of your 4v motor. The Whipple supercharger upgrade allows you to make serious horsepower while giving you a sleek new look under your hood. Want to upgrade pullies? Get more boost by simply bolting on one of our many Metco supercharger pullies! Finish it off with a new supercharger belt to keep everything tight and in working order.