The Mishimoto Nissan 350Z aluminum fan shroud kit will considerably improve engine cooling functions and the overall performance of your vehicle.All Mishimoto fan shrouds are significantly lighter than standard fan shrouds.In maintaining the lifetime of your engine, it is ideal to keep your engine running cool, especially during those unbearably hot days.A Mishimoto fan shroud will notably improve engine cooling performance by delivering more air to the 350Z radiator and driving out excess heat.The fan shroud serves another very important purpose: It secures the fan blades, preventing potential damage to other essential engine components. Nissan 350Z Performance Aluminum Fan Shroud Kit, 2003-2006 2003-2006 Nissan 350Z 3.5 Liter FS6R31A, 2003-2006 Nissan 350Z 3.5 Liter RE5R05A