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Air Intake for 2017 MDX

 
Old 01-23-2018, 01:55 AM
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Air Intake for 2017 MDX

I would like to upgrade the factory intake for my wifes 17 mdx, but all I can find is drop in replacement filters.
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Old 01-23-2018, 06:58 AM
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Time for some DIY action!!!

you can do a free mod by chopping off the intake resonator and relocating some piping
or
you can spend about $100 to custom make a 4" intake, which will out perform any of the branded intakes on the market,ie; AEM, K&N.

https://acurazine.com/forums/3g-tl-p...intake-882902/

Due to all the hype on 4" intakes on the J30 7th gen accords(TL's little brother), I will be putting one on my TL-S. Not sure how many other TL-S are running this setup, but a quick search showed its mostly accords. Obviously this is for people who are interested in function over form as this WILL outperform the very popular AEM V2 cold air intake. I ordered a 4" 90 degree aluminum pipe, 3"-4" coupler, 4" clamps, and a 4" K&N filter. Parts should be here in a couple days and I'll post some pics and a small DIY if you guys are interested. Here is a pic from an accord over at v6.p forum to give an example:
Parts needed:

3x 4.25" clamps
1x 45 degree 4" coupler
1x 3"-4" reducer coupler
1x 4" piping, 90 degree bend, centerline radius 6", tangent length 8"
1x 4' K&N filter RF1015

everything is available through ebay, cost me $112 shipped.

For the piping, I cut off 2" on 1 end, and 6" on the other end. In retrospect, 1" cut instead of 2" probably would have been better but it'll still work.
Here's the setup I got in the mail yesterday...pretty much what you're looking for lol

Props to George(Paperboy42190)
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Old 01-23-2018, 09:22 AM
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don't do that in a state that inspects for smog. Know several folks who have gotten expensive tickets modifying the intake on late cars, and had to put it back to factory. They don't tell you that when they sell the kits, it is usually on the back in fine print - "off road use only."
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Old 01-23-2018, 11:59 AM
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Originally Posted by spacegg View Post
I would like to upgrade the factory intake for my wifes 17 mdx, but all I can find is drop in replacement filters.
Why on earth do you think it needs one? The last thing I would say the MDX needs is more power (which I doubt you will even tell the difference with an intake). I can easily break my front tires loose on the stock engine at launch.
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Old 01-23-2018, 12:09 PM
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Originally Posted by hondu View Post
Why on earth do you think it needs one? The last thing I would say the MDX needs is more power (which I doubt you will even tell the difference with an intake). I can easily break my front tires loose on the stock engine at launch.
in a 3500lb vehicle, it takes about 30hp to "feel"

the MDX weighs more than 3500lbs and the DIY 4" intake at most, makes about 8hp
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Old 01-23-2018, 12:23 PM
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Don't do it. Waste of time and money. Not going to improve performance... And hotter intake charge will hurt power, if anything.
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Old 01-24-2018, 03:25 AM
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Originally Posted by justnspace View Post
in a 3500lb vehicle, it takes about 30hp to "feel"

the MDX weighs more than 3500lbs and the DIY 4" intake at most, makes about 8hp
..... and generates a lot more air intake noise.
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Old 01-26-2018, 04:38 PM
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I agree- it comes with a cold air intake stock, so you're unlikely to see gains. You could eliminate some of the features designed to eliminate intake noise, but I'd be shocked if you saw more than a 1% gain. Also, gauze filters flow more air through a MUCH smaller surface area as they have fewer, shallower pleats than paper filters. That means they not only let in MUCH larger particles, but they also clog up quicker. Even fresh and new the flow rate improvement is marginal at best.

Modern cars, particularly higher end ones, have pretty well designed intakes. Even the exhausts are good now days, although jam-packed with catalytic converters and such. Unless you're making other serious mods, like a turbo charger or some aggressive cams, there's nothing to really be gained in intake, exhaust, and ignition tomfoolery now days because things are already so good from the factory.
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Old 12-12-2018, 02:04 PM
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I use drop in K&N filters on my other acuras just for convenience since it goes up to 50k miles supposedly. Has anyone actually ran a KN up to 50k?
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Old 12-14-2018, 08:18 AM
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Originally Posted by knv8 View Post
I use drop in K&N filters on my other acuras just for convenience since it goes up to 50k miles supposedly. Has anyone actually ran a KN up to 50k?
OK for off road use. But K&Ns are notoriius for letting more dirt into the engine. And if over oiled even slitely can damage the MAF. What you will gain is more intake noise. Remember a motor is nothing more than a large air pump. If you want more air in, you have to also make a way for the air to get out
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