Cabin Filter

BETRNSX · 13 September 2015

I learned the NSX didn't come with one but has anyone bought a filter and just drop it into the vent under the hood underneath the cowl? I know there's one that Downforce makes but that's $600...

I'm looking just for a drop-in one that fits and seeing if anyone has done this and what kind/size filter did they use?

TIA!

Wavey1 · 13 September 2015

There's this thing called "search"... :smile:

http://www.nsxprime.com/forum/showt...-instructions*-cost-10?highlight=cabin+filter

Check post # 22 - that filter drops right in, extending a bit past the opening on the ends but that really doesn't matter. It's fast, easy and cheap and does a great job. My interior is staying MUCH cleaner with this in place.

texmorales · 14 September 2015

Thanks for the post. Just did this. So easy. By filter, drop in place and done.

BB · 14 September 2015

There's a pre made filter baffle and matching filter element for our cars that's available in Japan. I wonder if the element size it uses is commonly available here in the US without having to modify a filter?

drtruong · 14 September 2015

texmorales said:
Thanks for the post. Just did this. So easy. By filter, drop in place and done.

Where did you get it and what size? Pepboys?

texmorales · 14 September 2015

drtruong said:
Where did you get it and what size? Pepboys?

I just went to Autozone and asked for the Fram CA9115 like the thread said. They didn't have it in Stock but they could order it or give me the STP brand equivalent they had in stock at the time. I bought it and it pops into place with no cutting.

BB said:
There's a pre made filter baffle and matching filter element for our cars that's available in Japan. I wonder if the element size it uses is commonly available here in the US without having to modify a filter?

Now that looks good. But how much more than the $10-14 filter is that option?

BETRNSX · 14 September 2015

texmorales said:
I just went to Autozone and asked for the Fram CA9115 like the thread said. They didn't have it in Stock but they could order it or give me the STP brand equivalent they had in stock at the time. I bought it and it pops into place with no cutting.

Now that looks good. But how much more than the $10-14 filter is that option?

How is the airflow? Notice any difference?

My NAPA store didn't have the NAPA one in stock but are ordering it over, I should be able to pick it up tomorrow and give an update.

EDIT: Installed the NAPA 6646 Gold Filter and it fits snug right over the opening and air flow is unchanged. No cutting, just dropped it on top. The pleats fit into and around the opening.

texmorales · 19 September 2015

Yea I couldn't notice any difference. Glad you found something to fit.

GBL1 · 23 February 2025

BB said:
There's a pre made filter baffle and matching filter element for our cars that's available in Japan. I wonder if the element size it uses is commonly available here in the US without having to modify a filter?

So exactly what Fram/NAPA/Bosch model number cabin air filter did you use, and where can I get the "pre-made filter baffle" from Japan that you mentioned?

...and I read that correctly, about that the "filter baffle" coming with a matching filter element, was there a name brand / model number printed on that filter?

Thanks!

I_M_Legend · 23 February 2025

There's a pretty good kit that takes the guess work out: https://kuyaauto.com/collections/ne...oducts/desmond-wong-nsx-hepa-cabin-filter-kit

GBL1 · 23 February 2025

I_M_Legend said:
There's a pretty good kit that takes the guess work out: https://kuyaauto.com/collections/ne...oducts/desmond-wong-nsx-hepa-cabin-filter-kit

Yes, I agree, that is a quick solution, and at a reasonable price.

I was more just curious about the mod kit from Japan that BB posted a pic of, as it looks like a simple and fast solution to just figure out if the filter element is the same one, and to just go grab one at my local auto parts store.

No biggie, and I actually plan on getting the kit Desmond created.

Honcho · 23 February 2025

GBL1 said:
Yes, I agree, that is a quick solution, and at a reasonable price.

I was more just curious about the mod kit from Japan that BB posted a pic of, as it looks like a simple and fast solution to just figure out if the filter element is the same one, and to just go grab one at my local auto parts store.

No biggie, and I actually plan on getting the kit Desmond created.

I found that the Desmond kit restricted airflow too much for my preference. I made my own using Desmond's 3D printed brackets and some mesh and those cheap furnace filters from Home Depot. You get like 10 filters out of one piece. Not HEPA by any means, but it keeps the grit out of the blower unit.

mwagner10702 · 27 February 2025

Has anyone used the filter available from Mita?

https://www.mitamotorsports.com/product/hepa-ac-filter/

MaxGeek · 27 February 2025

Yes it works fine, but still reduces airflow. It's nice that it comes with one filter replacement.

T3TEC also makes one, but it's pretty pricey

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Cabin Filter

BETRNSX

Wavey1

texmorales

BB

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drtruong

texmorales

BETRNSX

texmorales

GBL1

I_M_Legend

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Honcho

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