The K&N 69-7070TB Typhoon cold-air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Nissan 300Z 3.5 Liter V6 models. The restrictive factory air filter and air intake housing are replaced by the K&N Typhoon cold-air intake which is designed to pull in relatively cooler air and dramatically reduce air flow restriction by smoothing and straightening air flow. This allows your engine to inhale a larger amount of denser air than the factory air intake. More air means more usable power and acceleration throughout the engine's RPM range. The 69-7070TB cold-air intake consists of a roto-molded plastic intake scoop that mounts behind the 350Z's front fascia directing cooler outside air through free-flowing aluminum tubing into the K&N carbon fiber topped air box. Inside the air box is a black rubber topped K&N high-flow air filter connecting to a mandrel-bent, 3" aluminum induction tube that delivers high volumes of clean, colder air into the engine's throttle body for a guaranteed power gain. The intake tubes have an attractive black powder-coat finish that's made to last. The cold-air intake system accommodates the factory mass air sensor and crank case vent hose. The oversized cone shaped air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. The tools needed for installation are a screwdriver, pliers, ratchet set and several wrenches. Some Typhoon air intakes are not legal for sale or use in California and other states adopting California emission standards while others are CARB exempt and 50 state legal. Check the K&N catalog or website for vehicle applications and specific CARB status for each vehicle and air intake.