Does anyone by any chance know the Honda (OEM) part number for the stock air filter? All I can get from looking at the filter is the fact it is made by Filtech and evidently their item number (in house part number I assume?) which is on the filter reads as PP-TD30. I didn't think this number would do me any good, and as I guessed, this number was of no use in cross referencing an air filter from any other manufacturer. I tried several websites such as ACDelco, Fram, Purolator, and other websites with cross reference charts and look-ups, etc. to no avail.
I'm interested in AMSOIL's new EaA nanofiber filter, but they can't do a look up on the RL as of yet for air filters. I gave them the K&N air filter p/n: 33-2323, I got off of a thread on this forum hoping they could cross reference it, but they didn't have that either.
Following is an email I received from AMSOIL regarding the part number for their new Ea nanofiber oil filter (for those interested), as well as, their current production SDF oil filter:
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Thank you for contacting AMSOIL with your concerns.
In response to your inquiry, the filters cross over to the following:
Honda OEM 15400 PLM A01 --> SDF 13 or EaO 13
Mobil1 1 110 --> No cross reference
ACDelco PF2057 --> SDF 13 or EaO 13
Purolator PL14640 --> SDF 13 or EaO 13
K&N HP 1010 --> EaO 13
Fram PH7317 --> SDF 13 or EaO 13
Unfortunately we do not have a cross for the K&N air filter, sorry :-(.
Thank you again for the opportunity to respond to your concerns. As always, please feel free to contact us again if we can be of further assistance.
Sincerely,
Heidi Etterman
AMSOIL Technical Service
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I gave them several filter numbers besides the Honda one to make absolutely sure there was no misunderstanding.
Here are the links regarding the EaA air filter and Ea oil filter if anyone is interested: https://www.amsoil.com/storefront/eaa.aspx and https://www.amsoil.com/storefront/eao.aspx
It sounds interesting in theory anyway. I know marketing hype rules as per usual, but I'm a sucker sometimes ( maybe almost all of the time
) for techno-garble whether it is actually a scientific and proven fact or not. One of my not too few character (or is it intelligence) flaws. 
Cheers!
I'm interested in AMSOIL's new EaA nanofiber filter, but they can't do a look up on the RL as of yet for air filters. I gave them the K&N air filter p/n: 33-2323, I got off of a thread on this forum hoping they could cross reference it, but they didn't have that either.
Following is an email I received from AMSOIL regarding the part number for their new Ea nanofiber oil filter (for those interested), as well as, their current production SDF oil filter:
***********************************************************
Thank you for contacting AMSOIL with your concerns.
In response to your inquiry, the filters cross over to the following:
Honda OEM 15400 PLM A01 --> SDF 13 or EaO 13
Mobil1 1 110 --> No cross reference
ACDelco PF2057 --> SDF 13 or EaO 13
Purolator PL14640 --> SDF 13 or EaO 13
K&N HP 1010 --> EaO 13
Fram PH7317 --> SDF 13 or EaO 13
Unfortunately we do not have a cross for the K&N air filter, sorry :-(.
Thank you again for the opportunity to respond to your concerns. As always, please feel free to contact us again if we can be of further assistance.
Sincerely,
Heidi Etterman
AMSOIL Technical Service
***********************************************************
I gave them several filter numbers besides the Honda one to make absolutely sure there was no misunderstanding.
Here are the links regarding the EaA air filter and Ea oil filter if anyone is interested: https://www.amsoil.com/storefront/eaa.aspx and https://www.amsoil.com/storefront/eao.aspx
It sounds interesting in theory anyway. I know marketing hype rules as per usual, but I'm a sucker sometimes ( maybe almost all of the time
Cheers!