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Power Strokes
7.3 Aftermarket
Donaldson Blue 6637 air filter, better flow and filtration
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[QUOTE="lincolnlocker, post: 1486664, member: 944"] correct. they are just slang terms now. and like i have said before.. the donaldson paper filter is the only filter swamps uses when tuning a 7.3 on their engine dyno and have made over 800hp with it. so the flow numbers dont matter. if you are worried about it then add a second one like i did many years ago but it isnt needed.. or switch to the bigger 2790 filter only the donaldson version. that is what is on my 7.3s and what i have ran in my 6.7 since it went on jenny Craig almost 70k miles ago. it pulls the filter minder easier in the tube vs the end of the filter. it wont solve anything.. just toss the minder out.. lol. Sent from my SCH-I545 using Tapatalk [/QUOTE]
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