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aFe Air Filter, 4" F x 8.5 B x 8.5 T x 11 L, Pro 5 R (BHAF)

A better option when building a BHAF than the 6637, the AFE Big Boost air filter is washable and flows significantly more air. Air Filter has 4" Flange, 8.5" Base, 8.5" Top, and is 11" Long. With five layers of progressively finer mesh cotton gauze media between 100% polyurethane top and base, this high flow “oiled” conical performance filter provides excellent airflow for maximum horsepower and torque. Washable and reusable for multiple cleanings, the tall, open, evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Pliable polyurethane flange with integrated bumps insures tight, no leak seal over the life of the filter.
Was: $124.80
Sale: $96.00
Save: 23%
Save: $28.80
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  • 24-91042
  • 24-91042
  • 802959242643
  • aFe
  • New

Shipping Information

  • Item Requires Shipping
  • 4.0 lbs.
  • W15.0000” x H10.0000” x L10.0000”
  • Free Shipping!

Customer Reviews

Comment Total Reviews (1)

Sounds and Feels better than 6637
  • Currently 5/5 Stars

Reviewed by: Janson04/05/2016 11:19PM

Product ownership: Less than 1 month

Purchased from: KT Performance

The sound alone this filter allows makes it worth it to own. Truck feels like it revs slighty quicker though this my be in my head and instead of topping out around 18psi I can get a little over 20psi if I floor it on the highway. I am interested to see if MPGs or anything else changes in the future.

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