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Unfortunately, we dont have the space to detail Johns aerodynamic program, but it is extensive. Here we can see the blocking off of the grille, followed by the aluminum air diverter bringing air from under the car to the radiator. John has worked hard to reduce and redirect underhood air, and his exterior streamlining tricks include removing the outside rearview mirrors, cleaning off the drip rails and paying attention to the windshield moldings. Air dams and side skirts are also used to limit undercar air and allow a minimum of downforce generators. The result has been 200-mph-plus clockings on just 550 hp.