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Thread: K&N filter

  1. #1
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    Default K&N filter

    Does anyone have a part number or recommend the best air filter for the Honda?

    thanks in advance

    greg

  2. #2
    Contributing Member DaveW's Avatar
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    Default

    Delete
    Last edited by DaveW; 03.10.25 at 10:13 AM.
    Dave Weitzenhof

  3. #3
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    Default Filter

    We need a cone filter for the Honda , not a panel filter like the stock car has…Thank you

  4. #4
    Contributing Member Lotus7's Avatar
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    Greg, try looking up ITG filters, they make a number of variations that might fit. Cheers.
    Ian Macpherson
    Savannah, GA
    Race prep, support, and engineering.

  5. #5
    Contributing Member CGOffroad's Avatar
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    Default

    I just took a guess that the throttle body was 2". Then did a Google search for: K&N cone filter for 2" flange

    Both of these came up easily in a search. The one on Amazon shows all the dimensions of the filter. Measure your throttle body flange and do a Google search. Looks like you will come up with tons of choices. I would think you can look around and find one that has the external dimensions you want.

    If for some reason the filter is a 'spec' part. Then get in touch with Fast Forward Racing Parts. I would think they will have one that you could buy directly from them.

    I am not saying these are the correct parts. All I am saying is they are filters I found quickly by searching for a 2" flange

    https://www.knfilters.com/ru-2580-un...Bm0FjdRPCryPih

    https://www.amazon.com/RC-1200-Unive...98502612&psc=1
    Last edited by CGOffroad; 03.09.25 at 9:53 PM. Reason: NOT CORRECT PART NUMBER

  6. #6
    Contributing Member Lotus7's Avatar
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    Another thought: any chance the filter is part of the "spec Honda" definition, and therefore can't be legally substituted with a different part? I'd hate to think it is, but nothing scca surprises me any more....
    Ian Macpherson
    Savannah, GA
    Race prep, support, and engineering.

  7. #7
    Contributing Member BWC54's Avatar
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    The filter that came with the HPD kit is K&N RC-1920. I've also used the larger RC-4890. Air filter is open in the rules.
    Crossle 32F, Piper DF5 Honda

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