American-Made Infiniti M37X Performance Intakes – Better Flow, Lower Price, Engineer-Designed!

Forum for Infiniti M37, M56 M35h Hybrid and Q70 owners.
NosManufacturing
Posts: 4
Joined: Wed Jun 25, 2025 2:48 pm
Car: 2012 Infiniti M37x
Location: Everett Wa
Contact:

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Hey guys, I'm Mark – an engineer and manufacturing consultant based in Everett, Washington. I've spent the last few months developing a set of custom high-performance intakes specifically for the Infiniti M37X

This isn’t just a cosmetic upgrade – I ran airflow simulations comparing mine to stock and a few popular aftermarket options, and the velocity profiles I’m getting are genuinely better. The design focuses on smoother transitions, optimized bellmouth geometry, and tighter sensor integration – all printed using carbon fiber nylon.

I hope its not too self promoting but if you guys are interested in the pricing in on my eBay page: https://ebay.us/m/r9PxVT

Also my website if you guys are interested in what I do https://nosmanufacturing.com/

Let me know your thoughts on this!
Attachments
velocity comparison.PNG
intake ID comparison.PNG
cropped hood.jpg
blanks intakes.PNG


emm3seven
Posts: 110
Joined: Mon Feb 25, 2019 7:48 pm
Car: 2011 Infiniti M37x w/Tech + Touring

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Interesting concept. Dumb question, but where do the intake air filters end up with this design? It looks like it completely replaces the stock air boxes that house the engine air filters, but it also plugs in to the stock front engine cover/intake air routing so there’s no place for something like a typical aftermarket cone filter.

NosManufacturing
Posts: 4
Joined: Wed Jun 25, 2025 2:48 pm
Car: 2012 Infiniti M37x
Location: Everett Wa
Contact:

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That's a great question emm3seven.

I didn't post it here, but if you check out my eBay link, I have a photo of where the internal air filter is located

NosManufacturing
Posts: 4
Joined: Wed Jun 25, 2025 2:48 pm
Car: 2012 Infiniti M37x
Location: Everett Wa
Contact:

Post

emm3seven wrote:
Thu Jun 26, 2025 10:39 am
Interesting concept. Dumb question, but where do the intake air filters end up with this design? It looks like it completely replaces the stock air boxes that house the engine air filters, but it also plugs in to the stock front engine cover/intake air routing so there’s no place for something like a typical aftermarket cone filter.

That's a great question emm3seven.

I didn't post it here, but if you check out my eBay link, I have a photo of where the internal air filter is located

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Rogue One
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*If you are an individual (non-business) who has designed a custom part or accessory and wishes to market it to NICOclub members, please contact our advertising department ([email protected]) and we will discuss an arrangement to assist you in getting significant exposure for your product.

*If you are a business that caters to Nissan / Infiniti owners and would like to reach 200,000+ dedicated Nissan enthusiasts, please refer to this link: http://www.nicoclub.com/advertise

AJ170
Posts: 38
Joined: Sat May 13, 2023 8:40 pm
Car: 2012 Infiniti M37x

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Right now I have a k&n filter inside of my stock air filter intake. Is your intake worth the upgrade over the k&n filter im using?

K&n claim to keep out 70% dust and such, paper filters claim to keep out 90%, do you have any numbers with research behind it regarding how much crap makes it past?

Also what filter would we buy? I checked your ebay listing and it says its using a 60ppm filter and when I googled that a bunch of fish tank filters showed up.

Edit: some after market cold air cone intakes require you to bring your car to a dealership so they can fix the maf sensor error due to too much airflow, does yours require this?


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