The air filter element housing and ducts provide the engine with clean, filtered intake air for the combustion process. An air filter element provides maximum air filtration with minimum flow restriction. The air filter and ducts are designed to allow the maximum air flow possible with a minimum of noise produced and to reduce the potential for water ingestion into the engine.

Insure that the duct to the throttle body and air filter is properly seated and secured and that the air filter is mounted properly. An incorrectly assembled air filter system may cause excessive noise or may allow unfiltered air to enter the engine. Also, incorrectly installed air filter systems may cause fueling or driveability problems by affecting air-flow at the MAF sensor.