Are K&N Air Filters Worth it?
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- Опубліковано 22 сер 2024
- Are KN filters worth the money or are they just a gimmick.
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On my 2017 RAM Cummins I ran data logs with the stock filter and K&N. In 3rd gear start at 2,000RMP floored it through the top of 5th gear. Log comparison showed 0.25 more Boost PSI; 403.4 CFM increase to 422.2 CFM with K&N. MAP went from 47.2 to 48.2. I have about 20 more horsepower and Exhaust Temps dropped 7 degrees. I did this exact run first on Stock, changed filter on the road and repeated the run so conditions are close. Then I did a run to the Post Office and where for I live in the mountains my fuel avg generally drops -0.1mpg when I go. This test run +0.2 mpg increase for that 20 miles stretch. So I am flappy with my K&N oilled filter. I do NOT worry about oil on the Maf sensor. That is easily cleaned. I have a Banks Elbow, Banks Intercooler, tunes, and soon to add BD Manifold using stock turbo. As an aside comparing runs using a ‘race’ tune vs ‘stock’ tune, 3rd to 5th as mention above is about 2 full seconds faster on race.
Day one of getting my vehicle i changed the filters to k&n cold air intake / cabin filter and 206k miles later still running with proper service
Less is more, when you spray a mist of oil, on the K&N air filter, which you cleaned and allowed to dry.
I have used them since 2004 and they last and last. I use one on my 2019 as well.
2013 without issue.
I have had multiple vehicles with K&N filter. I haven't done dyno runs to compare power.
I use them because there more cost effective in the long term.
The oil thing is a joke that develops from people with no mechanical understanding. If you wipe the filter box and tube just down stream of the filter there is no oil. But modern cars have crank/heads breather tubes connected to the air intake. With modern light oils these breather tubes results in oil on the intake.
All the people knocking k&n generally don't have catch cans, so the oil fumes from engine actually is what is adding oil. Also when you pull the filter out the oil hasn't disappeared that's why you have to clean them with degreaser.
Note that motor bikes and cars have used oil soaked filters for years without issues before k&n came along.
Most of the warranties issues are because it is in the car dealers interest to pin the fault of an issue on anything but the manufacturer.
For the record my cars have more than 200,000 km on them, filters went in at 30,000 km.
Finally a proper answer. 💯 agree with you 👍
Yeah appreciate that!
Every vehicle I've put K&N filters in have lasted 200k+ 300k+ miles and are still running to this day. I don't own the vehicles anymore but I sold them to my friends and they're still running strong. The only vehicles I didn't put K&N filters in and kept stock filters the motors died. 😂
K&N actually recommends you only spray oil on the air intake side of the filter, *not* the side that faces the MAF
That’s not correct. I oiled mine the other day and was quite shocked when all the k&n instructions and videos showed to oil both sides
I'm just going to replace mine and not wash it bc 55 dollars is not that much for something you rarely replace and risking engine damage to save 55 dollars is dumb
@@HL-hw6qp what happens if u don’t oil it? The guy at autozone helped me put mine in and he just took it out the package and put in the new one? I was driving home idk if I was trippin or placebo but the car seemed a lil more responsive compared to the old dirty filter I had.
@@_chubbz1510k&n air filters are pre oiled from factory but you should clean and oil it every ~30k kms
I think all the oil does is catch contaminates the air filter cant
Those are performance filters. Simple as that. You will get more air flow and alittle more power. That being said, you will be sucking in quite a bit more dust and sand. I change my oil every 5,000 miles and sent the last two samples in to be tested. One with k&n air filter the other with oem. And the k&n one had almost 3 times more silica in it than the oem, not good at all. Same highways driven everyday. My opinion, if it’s a daily driver or family car that’s driven frequently go oem or paper, if it’s your sports car you drive couple times a week don’t put a lot of miles on it before changing oil, go k&n
For road car it’s useless you barely make any more power and your sacrificing filtration so your use application is more limited then stock making it less appealing for daily use but if it’s for sports car that you only track or daily then yeah why not the small extra throttle response and increase power is definitely worth the sacrifice.
damn bro do you live in Afghanistan or something? LMAOOOO
Good advice
Most solid comment thanks
Agree. Nice air filter that actually doesn’t filter. I’ve seen two tests showing the K&N filter passes about 5 times the particulate matter as an OEM filter. If you want a 2% increase in HP at the expense of that much dirt entering your engine, get one. Not worth it for me.
230,000 miles on my 08 yukon. Had the same filter on since first service. I clean and recharge mine about every year.
Nice man!
Put over 100,000 hard miles, I drive fast on my 96 Impala SS with a K&N for my LT1. I used Mobil 1 Oil.
Almost 300k on my Tacoma with a k&n
And 100,000 miles on my 93 chevy conversion van, although it has 355,000 miles on it.
After cleaning and oiling, you have to allow the oil to soak into the filter cotton before reinstalling, about 15 min. Reinserting a freshly sprayed filter will cause the excess oil to enter the intake as you drive
Worth it. Just cleaned mine, re-applied, and gave it some time before using. Took about a day, so I alternate using the OEM and the K&N in between cleanings.
They're definitely worth it and I have never had any issues
This is facts. Had a 04 corolla and put one of these in, less than a few months later it threw a check engine light and the mass airflow sensor was covered in oil. Just had to clean it and replace with original air filter, no problems after
Did you oil it or over oil it?
It's not a bad thing to occasionally clean your mass airflow sensor with the maf sensor spray from the auto store anyway. The fluffy, white polyfil looking air filters flow just as well and filter better.
Works good..and as others mentioned how you oil it is where problems could occur as I did on my first clean..after that I caught it right and now no issues after 3 yrs
I like them. Never had any issues with the oil. 😊
They are great. I’ve been running the same one in my 2015 mustang for about 6 years now. No problems at all. Just clean how instructed. Very happy with this purchase. Worth it.
Just put one in a 2018 Tahoe LT and under heavy acceleration the engine light flashes. Come to find out it was because of the oil soaked filter allowed excess oil to find its way onto the MAF (mass air flow) sensor
The specific filter I got was drenched in oil out of the box….spray it down with some MAF cleaner as well as the MAF sensor itself and I’ve had no issues since
Worth it! Keep it clean, maintain it properly and u will be fine. I have had my filter for about 5 years now. Zero issues. Hp is a bunch of bs.
I bought one to take advantage of the reusable filter. Had it for over two years.
Had mine in my car for 2 years and it’s still peppy and fast ignore the haters
The oil did get sucked inside the throttlw body on my 7th Gen Accord EXV6 model. So on my 04 Accord EXV6 sedan with 90k miles. I been using the Factory Honda filtech Green/tan filters.
As someone mentioned before, I wouldnt use those on daily drivers but on a tuned fun car it's a good option, probably better than the cone filters in most cases.
I use a pipercross one on my miata, the air flow is a bit better but as always it has a cost, in this case being filtration.
I’ve used them in 4 of my families vehicles and all are doing great no issues. To be honest, I’m a lazy man, I don’t use them as intended I just buy a new one every 50,000 miles. They do slightly improve throttle response at first, but your cars computer will eventually even out that power curve to seem more normal. In my experience, you absolutely get better mileage even if it’s only 5% better. I care about fuel consumption, and these have the potential to help so I always put these in my cars.
I’ve worked at an auto parts store for a couple years now and sold many k and n air filters I’ve only heard mixed reviews
yes, a too much oil in the filter can be sucked off, but so is all the fine sand that misses the regular filter.
they seem marginaly beter than OEM filters, especially if those are just paper, the gap is smaller for those OEM filters made out of cloth like material (or sponge).
The MAF stuff happens if you over-oil them after washing them, its user error basically. There are some good oil guides but the gist is if you wash them and need to re oil using too little is better then too much, you basically just need to cover 1/3 the filter it naturally spreads over coarse of about 4 hours, some people try to soak the whole thing.
Personally my opinion is if stock intake go with good cheap paper filter like WIX and change it often, if some sort of aftermarket intake setup then K&N or similar (most the off brands are rebranded "discount" stuff made by K&N heh, Kirkland K&N if you will, almost any of the cone type stuff)
I installed a K&N filter on my 2013 scion tc years ago and for about a month my car would not crank correctly and often almost wouldn't crank. However, the problem eventually fixed itself overtime and haven't had a problem since. I'm assuming it messed up my MAS and it had to take time to adjust
Supposedly the pores are bigger on k&n filters which is why oil is needed to make dust stick and not travel into the engine, which is why you might get more power from better airflow. The oil is possibly just transmission fluid and I have even used rotella to oil a washed k&n filter. I see really no harm nor great benefit personally, except for the reusability.
1. There are plenty of guides through the internet on how to apply the oil on the filter.
2. Apply the oil on the outside face of the filter only. Applying on both sides and too heavy handed is what clogs the MA/O2 sensors.
3. Many car shops especially your manufacturer service center know how to apply it and usually have the oil required and during a service will air clean and re-oil your filter (at least the shop where I send my car since the past year I have used a K&N does it for me).
4. There are videos of this working on older cars quite significantly. However, in my case I can say my throttle response has improved and also the low end responsiveness. Making your exhaust less restrictive really made the difference more apparent. And putting your stock filter back on with a less restrictive exhaust will really make you tell the difference when using a K&N filter.
5. Lastly, it lets a lot of induction and turbo noises out and that is worth a psychological +100hp 😅.
I love it, no problems here. Great performance and sick whistling sound when accelerating similar to cold air intake (less restrictive than stock.) 2007 rav 4 v6
I put one in my 2012 Camry and could tell a difference right away it wasn't a great big difference but it was a definite improvement.
I put one in my 2015 ford taurus sel and ive driven it to hell and back for about 20k miles in 5 months havent cleaned it yet and ive had no issues, ill update this if i have any after i get a chance to take it out and inspect it but so far so good! Best 50 some odd dollars i spent.
Well on my 2019 Lexus es350 Fsport, I have the intake and air filter setup. I never cleaned the filter and it went at least 80k miles. My sensor never turned on. But I seem to have different results than most. I feel I get a little extra HP, but really don't get that impressive sound.
They are hella good! I even talked to a representative from K&N and they’ve ran multiple tests with a super saturated filters to see if it would do anything to the sensor and all tests left the sensor fine. Rule of thumb when oiling, spray both sides until it looks covered, let it sit for about 15min, respray any parts that look lighter so it’s uniform. Oh and wipe off the edge rubber and you’re good to go👍
I would say the maim reason you get them is that they are reusable. I been using these since my first car and never had an issue with the maf sensors. I do notice more pick up at the higher rpms.
No, no more fuel economy in ordinary driving; even in high-speed cruising. The only gains you get are when holding a wide-open throttle, and there you might see another 5-10 hp.
But how often do you floor the throttle and hold it?
Pretty often
Just purchased a #KandN #AirFilter for the engine & #CabinAirFilter & installed in my 17 #GrandCaravan.
It's been a week now, no issues & I've noticed much improved #HorsePower & #MPG!
The performance from the blower motor is great too, I plan on buying another set for my 12 #TownAndCountry just the same.
#Mopar #Chrysler #Dodge
Bought a 2007 Legacy with one of these in it from the previous owner. Maf sensor was caked, and the car spark knocked a bit on wot. Threw it out, replaced with a standard filter, cleaned the maf sensor, and the car ran way smoother through the power band. Maybe had a smidge less kick from stop, but I prefer clean air and a longer lasting engine to a little bit of extra noise and a nominal (at best) increase to pickup. Subies are finicky. They like having the parts they were designed for.
Using it in my 5.0 mustang. Clean and reoil once a year after approximately 5 k. Careful with the oil, always let it sit for an hour on newspaper for any excess drip.
Never had any issues.
I’ve used both oiled and dry (mesh) filters for over 25 years. While I never had an issue with the oiled ones, there are reports of oil fouling the MAF sensor thus messing up the F/A ratio. I currently only use the dry type because they are easier to maintain and actually flow more air. The fouling issue is most likely from users over-oiling.
I've ran them in many of my cars and put alot of miles on them and it's a misconception on the adding hp/trq. Without any type of tune the car won't gain very much to any but what people do see is a clean air filter so it's back to spec and any loss from being dirty is regained. But no issues or complaints my daily I clean every other oil change people never change their air filter enough. Not sure on the voiding of warranty but my dad cleaned his own and oiled the wrong side and ran it well it gummed up maf and got on side of housing anf throttle body and took a few times of cleaning to get it back to no warning from CEL but no issues about 5k miles since that and no problems. And yes a thin even spay, saturation is not necessary and can cause issues if it get through. I like mine and no issues, that's with the drop in the tube and cone make it a hot air intake and one again it adds no hp without a tune the cpu would restrict any excess air not required to operate at its tune.
The only downside is that allows a little bit more debris into the oil if you change your oil a little bit sooner you’ll be ok
I had used the cone and oil type air filter before, it damaged both the MAF and MAP sensors to the point I had to replace them. After I switched it to another brand that is the dry filter w/o any oil needed I had no issues. My take on the drop-in type that is oiled might not damage the MAF sensor as fast as the cone type cos the airbox reduce the turbulance of the airflow with a lot of obtacles. So the oil takes a while to reach the MAF sensor. If you wish to use the cone type, my take is to rinse off most of the oil and cover it with the dry charger mesh.😜
I will never use this filter. You're correct the oil with dirt will damage some engine parts just like mine. Stick to stock for piece of mind.
I've got one for my CX5 2016 Diesel, and it was awful. The fuel economy was bad, and the car was not performing. The seal around the filter was not sitting well, so more particles went in!
Been running one on my 2007 ram 1500 5.7 for around 17 years now. Been no issue with sensors, clean it less often than I probably should, but I can wash it at home and not worry about the parts store being closed when I need one. One time $80 purchase vs a new paper one every 5000km? Even with the cost of the recharge/cleaning kits, i’m still ahead. Im at 600000km, thats 120 air filters I would have gone through. At $20 a pop thats $2400 on air filters. Or one $80 filter and a new cleaning kit when I run out of oil on the last one… easy choice.
Their downside is they DO let more particles through than the paper filters. So your engine will be a bit more dirty. Clean out your air intake and keep up on your oil changes and its not a big deal.
I’ve saved money and put less waste in the garbage dumps. Win win. :D
I put them in every car I own , never had a problem. Let them sit a little while after you service it .
I got a 98 Subaru with 180.000 and no problems. And a 2019 Subaru love them I put them on Everything. Never had a problem
Do you mean 180,000? 180.000 (180) doesnt seem that much not sure if you meant a comma instead of a full stop
I just switched back to the stocks I didn’t get any lights on from them just didn’t want oil messing up anything I had them on my infiniti q50 for about 9000 miles
191k on my Caravan. Never had an issue. 83k on Pacifica, never had an issue.
Ive had one in my truck on and off for 4 years. I Alternate between the oil one and the K&N Select filter. Ive never had an issue with sucking up oil on the MAF or any engine problems. If the engine does suck up some oil in the engine its not going to do anything to the engine. The engine runs on oil so whats a tiny amount more going to do nothing but get burned up. 🔥 Dont be scared of what others say. Try it for yourself to make up your own opinion about it. I like Both my air filters the oiled one I got back in my engine. Its the 3rd time i e recharged it and it does make a difference in my throttle response. When step on the gas i notice a slight gain in response and acceleration
I never knew there were issues. Had 2 of em on a 2001 S-10 vortec, and would only hit the snot out of em with the airhose and swap the boxed with the just cleaned. Truck ran like a charm till i rolled it after hydroplaning off an overpass like a boss.
I've been using the rectangular filters for the stock airbox & cabin air filter, as well as the conical filters for the cold air intake for the past 17 years on 5+ different cars by different manufacturers with no issues whatsoever. I've also used their recharging kit to clean & re-oil the filters and have never had an issue. As long as you don't over oil the filter and let it dry fully then you won't have any issues.
@@Bunell5090 Have you noticed any performance gains like better torque?
My MAF sensor finally gave out at 400k miles when a K&N.
I put one on my TransAM and also put one on my turbo diesel pickup. They MAY give you a miniscule amount of extra fuel economy or power, but they aren't worth the headaches. They definitely let more dirt through and they are hard to get the right amount of oil on. If you get to much the turbo will suck that oil into the intake and coat all the sensors causing sensors to get inaccurate readings and cause issues. There are too many other ways to get tons of power without letting dirt into your engine.
I believe these filters depends on the user. If you maintain your car on a regular. Clean the filter when it needs to and properly oiling it. It'll be a decent filter. Definitely not a huge performance boost By any means. But if you want something to jist throw in your car and forget about, probably don't use this filter.
Edit. I should also mention the environment you are driving in would be a make or break. Definitely wouldn't use a filter like this driving in a desert conditions. Like Arizona.
Just curious, why wouldn't you use a K&N in a desert like AZ?
I live in Vegas, and have no issues using a K&N.
Ya k&n, one of the biggest filter maker brands and most recognizable name makes stuff that damages your car and voids warranty's. They've been around for many many decades because the damage vehicles and void warrantys. Just like anything, read the directions and follow them and you will be just fine.
And using that same logic Fram oil filters are fine correct?
@@hanksgarage_ you talking about that orange piece of trash? That's a little different, buying the cheapest thing you can get comes with cheaper expectations. Na, not the same
How does the filter damage an engine?
@U That's alot of the same thing that I have read about these.
You got SLICK 50 mindset....😂😂😂😂
It all comes down to re-oiling them properly after cleaning. Lot of people overdue it.
Also depends on the environmental conditions you drive in. In dusty conditions you are better off with a factory paper style filter.
I’ve never had a problem. And I’ve never had an issue with the dealer about them. Whenever I buy a car, first thing I do is take out that cheap air filter, and slap in one of those before I leave the dealership. As far as increased horsepower, and performance.. maybe a little difference 🤷
Yes, it does give you more power. I can notice it in both of my Corollas 17 and 18 but since there is more air coming in, the computer tells the fuel injectors to spray more gasoline which leads into lower MPG. I got 2.3mpg less in both of my vehicles for over 4 months already.
In a way thats true but not at the same time. I used these over that past 10 years & I have 1 currently on my 2018 corolla & it improved my mpg. Yes the computer will tell the car to pump more fuel but when your in a corolla & obviously your not racing on that. You will have better throttle response & car will move a little more easily so you won't have to use a little more pressure on the accelerate thus saving you gas
They are great. I have had several on trucks one on an Odyssey van and one in my Camry. Probably cleaned them a total of about 15 times and used them for years. Never had any issues and nobody gave me problems with warranty work. I clean my mass air flow sensors appx every 24 months so I don't know if you will have an issue if you don't do that.
i had one in my 07 durango and i never really notcied a issue
K&Ns are less restrictive then the ol paper filters and are reusable - yes the oil can mess up your sensors - yes sometimes its bad enough to need them completely replaced - also they dont filter out as many particles so your engine doesnt breathe as clean of air - does it matter? i dunno all up to what you want. Power or Reliability?
Had it installed in my Mercedes A220 for over a year and no problems yet. I cleaned it and recharged it over a week ago and no problems yet...dont go crazy on the oil
Don't over-oil or saturate the K&N filter and there shouldn't be a problem with the MAF sensor. Yes,they're good in my opinion.
They're better than nothing. Definitely felt a difference with K&N's over regular paper filters
I have learned, wash and oil the filter before you use it. They come way over oiled from the factory. Clean it and apply the oil lightly on the dirty side, don’t put oil on the engine side. If you do it this way you’ll never have an issue and you’ll see great power gains and especially fuel mileage gains. I have a 2013 f150 with the base 3.7 v6 and average 26.5 mpg on the highway. With a standard fram I’m lucky to get 22.
Ran one in a 04 cavalier, 2000 s10, 98 accord, 11 bmw 335 and a 17 fpiu. Never had any issues. But I bang them out and blow the rest out. I don't use the oil or cleaning spray🤷
If the oil messes up your mass air flow sensor just clean it with a spray mass air flow sensor cleaner and any rough idle or rough running will stop.
Idk if it’s just me but more air flow is gonna allow more dust to get in the engine but maybe give up to like 5 horsepower so idk if it’s even worth it if you want your engine to run as long as possible
Is there anything I did wrong? I put this in my 2016 civic and I ended having issues with it accelerating. I took it to the dealership and had to get spark plugs and a couple of other things replaced (happened a while ago, I forgot what the other things were). But the dealership mentioned that it was due to the air filter.
Just a light spray of the oil mist is all you need. Check it and clean as you would under maintenance. You did good on the price.
Spray the inlet side only and be gentle no point in soaking it
Use an AEM DryFlow if you want a reusable filter, they filter better and don't use oil.
If you watch project farms video on these filters, it shows the crazy amount of contaminates it lets through for “ added horse power”
Ive been given a 2017 ford escape. 85000 kms. Good condition. Ive always gotten real long life from my vehicles. I wish the same with this car. Wanna go full synthetic motor oil, best coolant money can buy and K&N filter. I know I'll feel better doing this. Also cost a bit. Can anything bad come from using K&N filter?
I’ve installed them on 3 different cars, recharged the filter 3 times and have never had dust past the clean side of the filter or my mass flow sensor getting oily I’ve picked up more power and slight better gas mileage, do not over ok these filters or you will have a bad time.
used it for 140k kilometers for 7 years, properly maintained it. the key is not to over oil the filter.
In my experience (mechanic), the panel filters cause nothing but problems. If u want a performance filter go with a different intake pipe and cone filter. Plus maybe a tune to compensate for the added airflow.
No they come pre oiled, and it’s a great way to keep the air going into your engine clean and clear of moisture.
Do you buy a new filter everytime instead of cleaning and re-oiling?
@@zachfoss4152no they are reusable. K&N has a cleaning spray and oil kit to use to service them.
@zachfoss4152 that's what I do. Buy a new one every 2 to 3 months
Your evap system and crank case ventilation(pcv) goes directly into your intake. Yes, the map sensor needs periodic cleaning to read accurately but all sorts of junk is digested by the engine.
I never saw them cause any damage until people clean them and add their own oil Accidentally add too much you should purchase a filter, which tells you how much oil you should use
They are less air restrictive, so they let more air in, But its filtration properties are also WAY worse than a normal air filter. For day to day use, its not worth it. I use a K&N myself and will be changing back at the end of this week.
They are great as long as you use them as intended
Clean and repeat! They will last and last and last💪
I put them in every car I've owned. Never a problem with oil blow-by. Since 1995. They definitely will make your car accelerate better. No noticeable Improvement in gas mileage. But definitely an improvement in acceleration. That's why I bought it
I have ran both the k&n air and cabin filters for years in all our vehicles , they sure last longer and cost less over time. As long as your keeping the vehicle I’d say it’s worth it.
Look up Project Farm's air filter comparison. While K&N air filters do flow better, it comes at the cost of filtering quality. They let much more contamination into your engine than a Wix or Purolator air filter does. The oil does also contaminate MAF sensors. Some more than others. 3rd Gen Tacomas, for example, have MAF sensors that get contaminated quite easily, not just from K&N, but other aftermarket filters and intakes that utilize oil.
Project Farm tested multiple filters and found that the K&N does give you the most airflow. The problem is that it also lets much more dirt through than a standard filter. So if it's a track car or something I'd run K&N. For a daily driver I'll run OEM or similar aftermarket.
Never a problem. Been using the K &Ns for years
You might get more power and stuff, but you'll never feel the difference. They also let entirely too much through for my liking.
Worth it??? The only thing I do not use a k&n on is my lawnmower yes! K&N ran one in the Baja500 and afterwards they checked and found it stilled out flowed a brand new Fram so it has keep it all clean
Never had a problem with a k&n
I really wouldn’t worry about the oil thing, I’ve never heard anyone who knows what they’re doing have that issue. Probably just some muppet who soaked his filter and then redlined the car.
Not a fan of oiled filters... if possible find a hi flow non oil cotton filter. For example apex power intake panel filter. All the benefits of k and n without any downsides other then replacing the filter.. ive been running mine for 10000kms and it still lookd in really good shape.. and yes i have experiance with k and n ive had 5 vechicles with k an n both diesel and petrol
It is worth if the K&N filter is brand new, like yours. it lasted quite a long time but then if you drive in a very dusty environment, all bets are off. However it is not worth to clean and oil it yourself. I sprayed too much oil-mess up my mass air sensor. You just have to know what you are doing in cleaning and oil it up.
K&N filters have significantly less flow resistance than paper filters. Their filter effectiveness is fine. Beware of bogus tests. You do need to be very careful when servicing them. The newer spray oil is easier to use.
the new k&n filters are synthetic don't even need the oil anymore..
Still have the one since 2002 just don’t over oil it like you see on UA-cam the oil is to keep it from drying and cracking
To me it's the same shlock as the "lifetime transmission fluid"
It'll last until the warranty ends then it's your problem.
You can also put a oil catch can to help with the problem but notice I said help not fix, if you want to fix what you’re saying either just change the filter instead of cleaning it with oil or when you clean it with oil you let it dry & also not use too much oil when you spray it