The Mishimoto Subaru WRX/STI 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 your engine, it is ideal to keep it running cool, especially during those unbearably hot days. A Mishimoto fan shroud will notably improve engine cooling performance by delivering more air to the Subaru radiator and driving out excess heat. The fan shroud will also secure the fan blades in place, which will prevent damage to other essential components in your engine.