6637 mod or airaid intake? - Diesel Bombers



Ford Powerstroke 99-03 7.3L Discussion of 99-03 7.3 Liter Ford Powerstroke Turbo Diesels

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Old 03-24-2013, 03:20 AM
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Default 6637 mod or airaid intake?

So when i bought my truck it came with an airaid on it. I've heard a lot of good things about the 6637. Would the 6637 give my truck more air and would it be healthier for my truck considering it is on dusty jobs all of the time?
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Old 03-24-2013, 03:37 AM
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I would do the 6637
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Old 03-24-2013, 03:42 AM
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Will i see more performance with the 6637 and will the filter last longer?
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Old 03-24-2013, 01:51 PM
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6637 will flow the same as your airaid, however it will filter better. If you get a prefilter, it will last for a long time as well (depending on the conditions) but its cheap to replace vs. cleaning and re-oiling your airaid.
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Old 04-18-2013, 12:13 PM
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6637 is the way to go to keep your truck happy
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