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I have a turbo flow foam air filter and I love it, it has over 150,000 miles on it and still works like new, every year or two I wash it with soap and water, dry it and re-oil it with high tack air filter oil, my car also has 210psi compression on all 4 cylinders with 270,000 miles and the original non rebuilt engine and I give the foam air filter credit for that because they tend to stop nearly all the dirt, that is why I tossed out all my K&N filters is the large amounts of grit they let in to the engine are a pain to clean out and cause alot of wear as it seeps past the rings and in to your oil.
Amsoil used to sell a line of foam air filters now they just sell micro fiber air filters that they claim are just as good.
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