The tube accommodates the air temperature sensor and crank case vent hose
2001-2005 Civic Si with MT
Year Make Model Submodel 1999-2000 Mercury Villager Base 1999-2000 Mercury Villager Estate 1999-2000 Mercury Villager Sport 1996-1998 Nissan 240SX Base 1997-1998 Nissan 240SX LE 1996-1998 Nissan 240SX SE 1996-1999 Nissan Altima GLE 1996-1999 Nissan Altima GXE 1996-1999 Nissan Altima SE 1996-1999 Nissan Altima XE 1996-1997 Nissan Pickup Base 1996-1997 Nissan Pickup SE 1996-1997 Nissan Pickup XE 1999-2000 Nissan Quest GLE 1999-2000 Nissan Quest GXE 1999-2000 Nissan Quest SE
which can be varied to accommodate multiple thickness requirements
It works with both stock DC5 shifter cables and the Hybrid Racing race cables
K&N Replacement Cabin Air Filter Seat Rails The tube accommodates the airK&N washable cabin air filters are engineered to fit directly into your factory air box, offering excellent protection from environmental contaminants and odor causing particles. The thermally bonded high flow synthetic material acts as a physical barrier, helping trap dust, pollen, mold, bacteria, fungi, and other pollutants, and is specially pleated to increase the contaminant capturing surface area. Each filter is engineered to install easily into