No, it is just the filter. After using it for a while found a lot of oil and oily dirt accumulating in the throttle body that I never had with the orig. air cleaner. Pulled the air tube and it too was coated with the oily crud. This was after using it per K&N instr. I did a lot of driving in the dust zones of E. OR. so thought it would be better than it was. Since I went back, the throttle body has stayed clean.

1997 T-100 4X4 Xcab,Warn Hubs
02 Camry LE
2008 Yaris