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Power Strokes
7.3 Aftermarket
6637 not flowing enough?
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[QUOTE="taterthedog, post: 89802, member: 1536"] Had my intake off again today. Clean as a whistle with the 6637. Doesn't have the performance of the big boost but filters well. I have seen lots of cheap air filters that got wet and they seemed on the verge of collapsing on themselves. Therefore I will be upgrading to the Donaldson filter that is made for the wetness. Anyone have the Donaldson part #? I'm probably going to work on a dual setup too. Lots of great info here, thanks for all the replies. How well does the Ford AIS system flow? Anyone try them? [/QUOTE]
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6637 not flowing enough?
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