The K&N Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Nissan 350Z models. The restrictive factory air filter and air intake housing are replaced by the K&N Typhoon air intake which is designed to dramatically reduce air flow restriction as it smooths and straightens air flow. This allows your engine to inhale a larger amount of air than the factory air intake. More air means more usable power and acceleration throughout the engine's RPM range. The air intake comes with dual black rubber topped K&N high-flow air filters and heat shields that installs into the previous air box spaces.