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Napa gold vs proselect3/28/2023 ![]() ![]() The NAPA Gold is the better filter and their Silver line is a step down. Castrol, the following is true for the Honda part number (#1334). My Honda's filter is encased in plastic and does not have this problem.Īs for NAPA vs. I'm trying to remember if I've seen one of these rubber-gasket-surrounding-media filters that had a neat, trim edge. I have a Penske air filter purchased at K-mart for a Ford V8 and it has the same problem but was manufactured on a different assembly line because the molding marks are a little different. I found that figure hard to believe but that's we were taught in class while discussing the topic "ventilation". ![]() I know from my stint in the fire service that screens in windows can cut down on CFM by as much as 50%. CFM can be adversely affected by simple things. If that doesn't matter to you, that's one thing, but I think it's worth noting in this discussion. If you look at a rectangular air filter that is 6" x 8" and it has 1/4" of flashing all the way around it (and one Fram I have looks much worse than this in spots), that reduces it's filter surface area by about 7" square. Well, I stick by my assessment of the Fram air filters being 2nd rate. Their Wix branded filters along with the NAPA Gold are a little bigger in most numbers. > ^)Īs for the WIX OIL filter in K-mart labeled as Castrol (or Penske), I think that is Wix's second grade line. When the weather is nice, I use a K&N cone filter. Since there are many more part numbers in air filters as compared to oil filters, I would suspect a great amount of cross-sourcing.Īnyway, I only use the stock airbox and filter 4 out of 12 months each year. I'm guessing there are only a couple producers of my particular Honda part number and most brands cross-source (buy from the same manufacturer). ) have excessive amounts of rubber flashing which clog the edges of the filter pleats and cut down on the CFM potential. Honda uses a rigid plastic frame and a more sophisticated gasket than the typical rubber mold around a chunk of pleated filter media which comprises most air filters I've seen. but they all look identical to the OEM piece. I've looked for aftermarket air filters for my Honda ('95 Civic Coupe) and checked a number of different brands.
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