If your thinking of a k&n cai system....

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abouttobeglue

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I've got the kn63561 on my hemi, felt a difference in throttle response and it sounds cool. Do yourself a favor and check the clamps for the hoses and filter often. My filter ended up falling off. I check em every so often now, so far they are staying tight.
 

MidwestJ

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My K&N performance CAI takes its air from the passenger side (right hand) fender while the truck is moving, some hot air gets in during idle. I also added an air scoop that mounts behind the grille to help direct air into the fender, which causes a positive pressure in the passenger side fender, this keeps any hot engine heat from entering the K&N filter. This system, as in all CAI systems, is View attachment 134418 View attachment 134419 a starting modification, that must also have other modifications to maximize performance.


Dude. Specs and source on that after market air scoop mod you added in your second picture.

Thanks
 

cubmedic

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I was told to get a filter that stops chicken bones and beer cans. The rest is too restrictive for horse power gains. When I was racing back in the 90's, we did on track testing and found that a car with no air filter ran faster than one with. Also with the engine dino we found that different air filters could also mean the gain or loss of up to 25 horsepower depending on the set up.
The K&N was illegal due to the fact you could soak them in some type of fuel and make more horsepower.
With that said the K&N did restrict more air (and dirt) than most filters we would use.
 

GatheredEarth

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Smae here. I have a K&N intake, throttle body spacer (don't waste your money) and magnaflo exhaust and I can tell a big difference. Hopefully next weekend I can install my headers and really tell. The K&N in my opinion was well worth it
 

Boatman1013

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Before I got my 2019, I had a '15. I chose the S&B cold air intake because it drew more cold dense air away from the engine. Did a custom exhaust (not store bought) which located the Dynaflow further back for improved scavenging. Increased the diameter of the tubes by another 1/4", removed the resonators and had the factory tips enlarged to fit. Before I installed the Diablosport tune, I had a net horsepower gain of around 17 horsepower. I do a lot of performance marine engines, so I'm always skeptical about these claims of storebought horsepower. You'd be amazed how much it costs just to gain 100hp. With so many variables, aspiration, exhaust, injectors,coils, plugs,etc. Be careful in the future before you make any further purchases. The best advice you'll ever get is on this forum. I'm a true believer in the old "Any of you guys try this part/component before I buy it?" You'd be amazed on how you'll be able to make an educated decision. Just my 2 cents Bro, Good luck with your mods!!
 

PNUTLT1

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do it! I was at the truck and Jeep fest in Long Beach today and picked up the complete cai system from the k&n booth. Originally about 300 bucks I got it at a show price of about 235 bucks. Salesman told me it’s dyno proven to add about 16 horsepower to my hemi. Took me about an hour to install. Well let me tell you, my hemi is all stock besides a pedal commander. This cai setup sounds super aggressive when you get on it! Truck definitely pulls harder too. Easily feel the extra horsepower and torque that k&n claims. The sound it gives off is absolutely amazing. Super throaty and aggressive. Can’t wait to hear it with a performance exhaust system

View attachment 134252

"Salesman told me it’s dyno proven to add about 16 horsepower tomy hemi. "

Hate to be that guy but he is a SALESMAN... they only regurgitate what their boss says. I have the K&N filter for the normal system, site says increase blah blah. I dont see it but I didnt get it for that I like the intervals of 50k miles and that they have a 1 million/10 year warranty.


I actually have a friend that works at K&N as a R&D specialist and I've taken my gfs old civic and im getting him a Polaris RZR XPT to test.
He told me that all of K&N's claims are 100% accurate. He actually is the one who makes mock up intakes and sends the designs to be made to the real intake.
He said all the emission testing has to be on point.
He even told me once that they'll do a few dyno runs and actually advertise the middle or lower pull numbers. They wont do the highest peak pull because they can get sued by people that cant replicate that on their own dyno runs.
 
OP
OP
Mopar man

Mopar man

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Before I got my 2019, I had a '15. I chose the S&B cold air intake because it drew more cold dense air away from the engine. Did a custom exhaust (not store bought) which located the Dynaflow further back for improved scavenging. Increased the diameter of the tubes by another 1/4", removed the resonators and had the factory tips enlarged to fit. Before I installed the Diablosport tune, I had a net horsepower gain of around 17 horsepower. I do a lot of performance marine engines, so I'm always skeptical about these claims of storebought horsepower. You'd be amazed how much it costs just to gain 100hp. With so many variables, aspiration, exhaust, injectors,coils, plugs,etc. Be careful in the future before you make any further purchases. The best advice you'll ever get is on this forum. I'm a true believer in the old "Any of you guys try this part/component before I buy it?" You'd be amazed on how you'll be able to make an educated decision. Just my 2 cents Bro, Good luck with your mods!!
Thanks for the tips I appreciate it! As for mods I need to slow down the money train for awhile haha. Next up will be a carven direct fit muffler and that’s its for awhile. Beyond that, a catch can. Also want to spend some on mods on my 2016 rt Durango
 

Rick R

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I had a K&N on my motorcycle with a carb setting to match it and gained about 20% more power. I bought a K&N for my 2009 1500, 4.7 Ram in a stock system and really didn't notice much difference. I recently bought a 2015 5.7 and traded the K&N from the '09. I'm still not noticing a difference, but I believe it's a better filter, anyway.
 

Boatman1013

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I'm with you there. As most of my work with Mercury Racing deals with GM architecture, I've always been a Mopar guy. 68 Charger, SRT Magnum and 4 Ram trucks. Being faithful to the brand, there's TONS of power available with the current 5.7 Hemi. When I was done with my '15, I was pulling just short of 400 at the rear wheels with the Diablosport tune. Truck was a rocket. My next step was possibly a Procharger, but when do you stop? When I ordered and picked up the '19, my aspirations for modding this truck changed. While I do need the leveling kit and exhaust note, this truck is going to be more about getting performance, and finding that sweet spot between power and mileage.
Again, have fun with both your truck and the Durango, but the guys on this forum have a wealth of knowledge.
Looking forward to see how you make out with your projects!
 

chrisp2493

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I think the problem with the ram trucks and cold air intakes (at least for the 3rd gens, I “think” it’s the same with the 4th gens) is they use an Intake Air Temp sensor, not a mass air flow sensor like other vehicles use. So the computer doesn’t really see much of a difference in airflow with an aftermarket intake. That’s why I made a CAI one of my last mods and mainly just to ditch the ugly Hemi hat and intake


I Bleed Ram Trucks
 

Mike77

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I'm happy with my kn, it seems to pull smoother in the upper rpms
 

RedSRT4Me

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I understand the concept. I've built many motors in my day. It's an air pump. More air in - more power. That I understand. What I don't understand is the tune the cars have today. If there is more air in the system, does it actually add more fuel?

These are not MAF systems correct? These are MAP..

MAP sensors to measure vacuum, the computer calculates the engine air flow based on the vacuum, throttle position, and intake air temperature. ... MAF = Mass Air Flow and is a sensor that measures the actual air flow going into the engine. So how is horsepower increased?

You've heard time and time again - it's not like the old school days where you throw on a K&N and exhaust and expect 40 horsegain. You have to tune the program to act differently.

Am I wrong?

Hit the nail on the head
 

blackbetty14

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I understand the concept. I've built many motors in my day. It's an air pump. More air in - more power. That I understand. What I don't understand is the tune the cars have today. If there is more air in the system, does it actually add more fuel?

These are not MAF systems correct? These are MAP..

MAP sensors to measure vacuum, the computer calculates the engine air flow based on the vacuum, throttle position, and intake air temperature. ... MAF = Mass Air Flow and is a sensor that measures the actual air flow going into the engine. So how is horsepower increased?

You've heard time and time again - it's not like the old school days where you throw on a K&N and exhaust and expect 40 horsegain. You have to tune the program to act differently.

Am I wrong?

Sorta, bc the engine is an airpump the less restriction going in and out would promote power production. Where people are wrong is that it’s not “adding” hp, it’s merely “restricting” less. If you improve air flow AKA restriction that promotes less turbulence and possibly cooler air you can gain lost HP. The tune is based off a few calculations which you meantioned but the drop in IAT from a good CAI would and could net hp alone, then if you cram more air into the engine it notices it via the 02 sensors which it will add fuel to bring it to the commander AFR. With added air and added fuel you get added power. The power released via the CAI is only dependent on the restriction of the original restriction and also the engine and exhaust. You can run NO CAI and not pick up as much power with the stock exhaust but if you unrestrict the stock exhaust the CAI becomes the restriction so you release more power with the CAI.

The tune is also a restriction, lean AFR, low timing and aggressive timing ******* are going to limit power via mods. Everything works together but it’s possible to gain restricted HP with the CAI just based on lowering the restriction on the inlet side alone.

OEMs are all about quiet as the average consumer doesn’t like to hear the intake filter hissing away, they need to worry about noise, filtration (better than K&N) and crap like water and debris entering the engine and taking it out while they have to pay to fix it. It’s a balance and therefore usually a restriction.
 
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