The K&N Apollo Closed Air Intake System is a universal air intake system that includes a washable/reusable K&N High-Flow Air Filter. The Apollo's specially designed shape increases volumetric efficiency and provides the benefits of an open cone filter and standard air box in one unit. Heat build up is reduced which keeps the intake charge cool. Smooth internal features minimise air turbulence and maximise air flow.The Apollo's outer shell is made of a durable lightweight material that helps keep incoming air cool as it enters the engine. K&N's Apollo system includes a cold air hose, with a specially designed radius end cap, so cooler outside air can be directed into the engine.The Apollo has a 70mm base flange. It is supplied with a pack of vent adaptors to incorporate most engine breathers and temperature sensors from the original air box assembly. Included vent sizes are 1/4", 3/8", 1/2" and 5/8" outside diameter aswell as a blanking plug if a vent adaptor is not required.The Apollo