Airflow Rating:Flows 50.6% Better than the Stock IntakeEfficiency Rating:99.81% Efficient @ 653 CFM (ISO Course Dust)CARB EO Number:D-590-4Re-Oiling Amount for Filter:87 grams of oil on main filter, 17 grams on Power StackReplacement Filter For Intake Kit:KF-1035Oil Color:RedPart Number Replaces:75-5033Filter Wrap Part Number:WF-1023Total Weight (including unit box):10 lbs.Unit of Measure:EachUPC:841372032875