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I'm looking to get a AIS Severe Duty Kit. What do y'all think of it and where can I get the best price for it? I know the 6637 is cheaper but I want a lot of filtration and to stay closer to stock. Opinions? comments?
Thanks,
i'm going to change over to 6.0 stock intake this spring. you can get them real cheap. i have less than 60 buck's in mien. and it has more air flow than the asi
A 6637 and one of Pete's covers on! Works great for me and alot of others! Never got wet yet, great air flow, also the filter lasts longer, just wash the cover every now and than!
The 6.leaker Airfilter was actually a really good design by Ford they can actually do well up to 500 HP and it works great with the zoodad though there is alot more modifcation then with the AIS or 6637.