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Discussion Starter · #1 · (Edited)
I'm not saying this is going to make any extra horse power, I did this mainly because I absolutely hated the look of the intake muffler on the engine. Ok now that we are beyond that here is my answer to the problem. My boy DurangoFreak and I have gone to the performance hood and have been looking for an option that would fit the truck with a closed filter. Keep in mind when we started this there were no enclosed CAI that fit the 16-18 trucks, and now there is.

DurangoFreak had a K&N AirCharger kit #63-1563 and I had seen pictures and thought the K&N tube might work with an OE style airbox. So he did an little R&D and it worked. So I called K&N, they are usually pretty easy to work with and was able to order only the parts that I wanted/needed from the kit to get rid intake muffler/silencer.

So here is what I used and what I had to do the get it to work, spending the least amount of cash, and maintain an OE look.

Fist of all we are running OE SRT lower air boxes with high flow panel filters. So we basically created a CAI...we dubbed "Frankinintake". All the info on the SRT airbox is in this thread: http://www.dodgedurango.net/forums/durango-performance-2011/57593-oe-air-box-pulls-more-air.html

Here is the install instructions for the K&N kit: https://www.knfilters.com/instructions/63-1563_inst.pdf

You'll use them for most of the tube install.

So I called K&N an ordered the following parts:
1 x 087249A - TUBE: FIPK 63-1563 $40.99
4 x 08620 - HOSE CLAMP, #56 $3.10 (you only need 3 but 4 is the same price so what ever, and they cheaper from K&N then Lowes)
1 x 08630 - Bubber Hose; 3-1/2" ID x 2" L $6.43
1 x 08064 - Grommet; 1" OD, 1/2" THK
1 x 08050 - Rubber Hose; 4" ID reduced to 3-1/2" ID x 3" L $11.99

So the parts total from K&N is: $62.51 + tax

The other parts you need are:
1 x 4" hose clamp
1 x Brass plug - 1/4" NPT (the plugs are a pretty standard length)
1 x IAT extension harness. You can get this from K&N, but I felt they wanted to much for it so I got one from eBay for 1/2 the prices.
https://www.ebay.com/itm/Air-Temp-S...m=152212063338&_trksid=p2060778.c100290.m3507

The hose clamp and the plug you should be able to find at a local hardware store.

Ok now the extra stuff that I had to do not following the K&N directions.

1. I cut of 1-3/4" off the filter side of the intake tube. You probably don't have to do this but I want the intake tube protruding into the airbox.

2. I wanted to keep the set up looking as stock as possible while spending the least amount of money to make this work. Obviously the K&N CAI eliminates the airbox witch is where the crank case vent tube runs. The K&N kit replace this with a hose that runs to the bottom of the intake tube. I solved this with the brass 1/4" NPT plug.

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I would have preferred to use a recessed allen head plug but couldn't find one so this works just fine.

3. The exit port of the OE airbox is actually 4.25" ID but I couldn't find a coupler that size so I got the 08050 - Rubber Hose; 4" ID reduced to 3-1/2" ID x 3" L from K&N in hopes I could make it work. The coupler is a silicon type rubber and really flexible so I was able to stretch in on there without any problems.

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With the 3 exception I listed just follow the K&N directions for everything else.

Once I had it all on I did take off the OE bracket that was there for the GIGANTIC intake muffler, because it no longer serves a purpose. Also if I'm not mistake for you guys that are into the catch can thing...this is where it's mounted on the cars with the 5.7 Hemi. Just sayin.

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Here are some pictures of the tube in place.

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Over all pretty easy to do. The engine bay looks much cleaner now and I can here the intake. But some of that is do to the SRT lower airbox.

If you have any questions let me know.

Once again thanks to DurangoFreak for the assist and R&D. He also has a tuner and was able to make some runs with the "FranK&Nintake" so if you have questions about the performance of the set up he can probably help some with that.
 

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Awesome write up craigffb.

I will add that my tuner said nothing changed when I swapped out the K&N open cone for the K&N drop in with the SRT box. I actually did before and after data logs so it was a comparison on the same day and temp.


--
2017 Dodge Durango AWD R/T Granite Blacktop

Performance
SRT Air Box, K&N Intake Tube, K&N Filter, Fastman 86mm TB, Ported Intake Manifold, 180° Thermostat, Billet Tech Catch Can, Corsa Catback, Grocery Getter Strut Brace, Bwoody Sway Bar End Links, Diablosport Trinity, Jay Greene PCM/TCM Tune

Appearance/Interior
SRT Hood, Gorilla Black Lugs, Luxe Taillight Tint, Front Windows 15% Ceramic Tint, Yellow Fog Lights, Weather Tech Floor Liners, Mopar Grille Emblem, Steering Wheel AUX Buttons, Tazer

DiabloSport Trinity Times 0-60 5.17, 1/4 13.77
 

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Thanks for the write up, going to do the same. Interesting, your eBay link for the IAT says its 16" but when you go to Michigan Motors sports web page and input the PN it says its 24"? Going to get the parts ordered ASAP.
 

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Discussion Starter · #4 · (Edited)
Thanks for the write up, going to do the same. Interesting, your eBay link for the IAT says its 16" but when you go to Michigan Motors sports web page and input the PN it says its 24"? Going to get the parts ordered ASAP.

The IAT harness is definitely long...LOL, I had to get creative on how I ran it to keep it out of the way, plus some zip ties. Creep around on eBay for the SRT airbox if you want to go that route. DurangoFreak and I both got them dirt cheap, like $30 bucks cheap.
 

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The IAT harness is definitely long...LOL, I had to get creative on how I ran it to keep it out of the way, plus some zip ties. Creep around on eBay for the SRT airbox if you want to go that route. DurangoFreak and I both got them dirt cheap, like $30 buck cheap.
Thanks for the tip. I have a 18 R/T so I'm hoping we can eventually order the air intake down pipe that connects to the SRT airbox.
 

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Discussion Starter · #6 ·
Thanks for the tip. I have a 18 R/T so I'm hoping we can eventually order the air intake down pipe that connects to the SRT airbox.
It doesn't exactly connect to the airbox...it just funnels air in the vicinity of the airbox. I haven't been able to get the part number yet....but I'm working on it. When I do find it I'm going to get one and modify it to work on my truck.
 

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Discussion Starter · #8 ·
OK, still should be better than the 5.7's pathetic inlet. Also, I ordered these NPT plugs: https://www.amazon.com/gp/product/B009IK2BGO/ref=ox_sc_act_title_2?smid=A2V2SMRC4Q6Q80&psc=1
Agreed. I think it's every bit as good as any other CAI on the market. I went with a brass plug for the simple fact that the nut set into the tube is also brass. I try not to mix metals if I don't have to and the brass plug was available. But as long as its 1/4" NPT it will work.
 

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Agreed. I think it's every bit as good as any other CAI on the market. I went with a brass plug for the simple fact that the nut set into the tube is also brass. I try not to mix metals if I don't have to and the brass plug was available. But as long as its 1/4" NPT it will work.
Thanks for the heads-up on the brass. Didn't realize that. Agree on keeping metals the same. Will cancel and order a brass.
 

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The IAT harness is definitely long...LOL, I had to get creative on how I ran it to keep it out of the way, plus some zip ties. Creep around on eBay for the SRT airbox if you want to go that route. DurangoFreak and I both got them dirt cheap, like $30 buck cheap.
Nice Craigffb, looks oem, I failed to mention I also had to trim the tube in my other post, the parts are very inexpensive from K&N, I'm just curious as to why K&N locates the sensor far from the stock location that you need an extension, any thoughts on this? Luckily for me my tube had the sensor location same as oem.
 

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Discussion Starter · #13 ·
Nice job men. Looks a lot cleaner than the factory setup...yet still looks factory, so win, win!
No doubt to me it provides an improvement in airflow over our stock setup.
I also like the red accents on the engine cover....is that paint? or decals?
Thanks. And the red accents are decals. I got them off eBay, they weren't that much. They came with everything you see and the for the HEMI on the side, but I didn't use them.
 

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Discussion Starter · #14 ·
Nice Craigffb, looks oem, I failed to mention I also had to trim the tube in my other post, the parts are very inexpensive from K&N, I'm just curious as to why K&N locates the sensor far from the stock location that you need an extension, any thoughts on this? Luckily for me my tube had the sensor location same as oem.
I can only speculate that they felt it was getting a better reading, but I really don't know. And I did put a rubber cap on the bolt the bracket was attached to. Thanks for that ideal.
 

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I can only speculate that they felt it was getting a better reading, but I really don't know. And I did put a rubber cap on the bolt the bracket was attached to. Thanks for that ideal.
Glad you liked the cap:clap:, I rode around today quite a bit, went several places and got a feel for the set up, didn't feel any change in power either way or any noticeable noise from intake, just a very very subtle deeper exhaust note (could be my imagination lol), please share your experience with yours. When i got home opened the hood and felt the tube, it was not hot at all actually felt cooler than the engine cover, surprised, expected tube to be quite warm, outside temp today was about 50 dgs. Will see what happens during hot days. I'll go out on a limb and speculate that four coats of this high heat paint may offer some insulating effect other than just plain aluminum and that its really sucking some cool air from the bottom which would make this whole experiment worthwhile. No matter I'm happy with the results.
 

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Discussion Starter · #16 ·
Let me start off by saying the Durango is actually my wife's truck, so I don't drive it all that much. Anyway, we did take it to Nashville (about 50 miles on the highway) the day after I put it on. I could tell there was more engine noise at lower RMPs, but the wife didn't notice anything. At highway speed I didn't notice much, but when the truck accelerated with the cruse control on, once again I could here more engine noise.

At one point in the day I went to open the hatch and accidently cold started the truck. My wife kind of looked at me a said...."ok I hear it now, quit showing off".....LOL. It was defiantly louder then it was before.

I had to, well I don't know if I HAD to, romp on it to get around some cat on the Highway and it was WAY louder at WOT. You could without a doubt hear the exhaust and engine screaming and the truck felt like it had a little more pull on the top end.

Like I said in the very first post, I'm not claiming any horse power, but you can hear the difference in certain situations and the engine bay looks way better without the STUPID intake muffler/silencer sitting in there.

Your experience may differ...LOL :thumbsup:
 

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You guys are saying intake muffler, but its a Helmholtz resonator. That said, I've been running my Volant intake a while now which is a really clean looking setup (and way more airflow), and I wouldn't have it any other way. Apparently there is no deadspot even with a Helmholtz resonator removed, which is odd but true.

You have also inadvertently made an "Airaid Jr." type intake, like is done with the GM 5.3L. Excellent!
 

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Discussion Starter · #18 ·
You guys are saying intake muffler, but its a Helmholtz resonator.
That's the fancy name for sucks...LOL

You have also inadvertently made an "Airaid Jr." type intake, like is done with the GM 5.3L. Excellent!
Exactly. If they made one for the Durango 5.7 it would have saved me some trouble.
 

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Hahaha well done.
 
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