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K&N CAI for 2009 4.6 Adrenalin

Discussion in '2007 - 2010 Explorer Sport Trac' started by Tnarg Nodrog, July 7, 2019.

^^Searches ExplorerForum.com^^





  1. Tnarg Nodrog

    Tnarg Nodrog New Member

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    City, State:
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    Year, Model & Trim Level:
    2009 Adrenalin
    I've searched the forum for information regarding the right part number for a K&N CAI for my recently purchased 2009 ST Adrenalin.

    As everyone already knows, K&N does not list an 'official' part number for the 2009 Sport Trac 4.6 V8!

    I've found three numbers as follows: 57-5291.....63-2573.....57-2573

    Would one or more of you PLEASE confirm the part number of the CAI you actually installed in your 2009 4.6?

    Hate to buy the wrong one!

    Thanks!
     
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  3. SMSgt09

    SMSgt09 Member

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    City, State:
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    Year, Model & Trim Level:
    2009 Adrenalin 4.6
    There are several people on the forum who have put K&N filters in their trucks. Just do a simple search for K&N and see what turns up. I know Tyke has a K&N but he also has a cold air intake so it might not be the same. But just do the search.
    Good luck.
     
  4. Tnarg Nodrog

    Tnarg Nodrog New Member

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    I have done a search but came up with three different part numbers....just trying to determine which one is correct!
    I'm hoping someone who has actually installed one can provide that actual K&N part number they used!
     
  5. Gee Man

    Gee Man New Member

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    While not sure on numbers, my understanding is that all the K&N CAI does for our trucks is make them louder, no performance enhancement. I suppose if you are going full stage 2+ it might help as a support mod, but other than that just not worth the expense. YMMV
     
  6. Tnarg Nodrog

    Tnarg Nodrog New Member

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    You may be right, but I’ve installed CAI’s on my last three Fords ( 2003 Mustang, 2016 F-150 Sport & 2015 Explorer) and although I don’t have formal test data, my somewhat subjective gut tells me that there have been performance and mileage improvements....just my two cents worth
     
  7. harmlessv8

    harmlessv8 New Member

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    This is what i got and it fits/works great 57-2573 from K&N
     
    Last edited: July 15, 2019 at 8:39 PM
  8. Tnarg Nodrog

    Tnarg Nodrog New Member

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    Thanks.....that's one of the previous numbers.....Glad to have an 'actual' install to confirm what works!
     

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