STILLEN High Flow Air Intakes for 2003-2006 Nissan 350ZThe first step in upgrading your Nissan 350Z's performance is to replace the restrictive stock air box with a STILLEN High Flow Intake. INCREASED ENGINE EFFICIENCY Additional air flow increases the 350Z engine's efficiency and power output by increasing the quantity of the air/fuel ratio. The STILLEN High Flow for 350Z consists of a K&N cone filter that incorporates a velocity stack which uses the venturi effect to accelerate air intake speed.
