These replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. The filters are washable and reusable and are custom designed to fit all Pontiac Tri-powers systems with a 5.50" OD base. Please note there is NO OIL required for these air filters. Sold as a set of 3 filters. Performance of an oiled style filter with the look of a stock paper filter.
Increased air flow due to reduced thickness of filter element with excellent filtration.
Specific Fitment : Outside diameter 5-1/2'". Inside diameter 4-1/2'". Thickness of filter element is 1/2". Height of filter 1-7/8".
Standard stock paper filter : Outside diameter 5-1/2" Inside diameter 4" Thickness of filter element 3/4". Height of filter 2-1/4"
Made in USA