S&B Filters 75-5027 Cold Air Intake for 1994-1997 Ford Powerstroke 7.3L (Oiled Cleanable, 8-ply Cotton Filter) Flows 42.2% Better than the Stock Intake 99.41% Efficient @ 651 CFM (ISO Course Dust) Comes with an S&B high performance cleanable 8-ply filter with 1" pleats for great power and mileage. NOTE: S&B's cleanable filters only allow for the use of the Precision II Cleaning and Oiling Kit to clean and oil your filter Made in USA and tested to the standards most other performance filter companies don't -- ISO 5011