Do Performance Air Filters REALLY Give You More Power?

[@tyrereviews]

bit.ly/TyreReviewsCarly - Get 20% off your Carly adapter with code Tyres until 30 Nov 2020! Carly offers a free lite version of their slick app, which gives you access to the OBD functions and you can use it to check which advanced Carly features work with your specific car model.

[@DonutsReview]

So many channels have done this with the wrong cars. I put K&Ns on my 5th gen 4Runner and it makes a world of difference. Stop using sports cars. Use them on SUVs and Trucks. Especially with the 4Runner, replacing the filter makes the whole thing a cold air intake. You don't need the trd pro cold air intake, the OEM one is already one, just missing the K&N filter.

[@RickinICT]

@@DonutsReview the problem with putting them on trucks or SUVs is that they are meant to be operated off road, on construction sites, or farms, where they will be subjected to far higher amounts of airborne dust and dirt that could be sucked into the engine. Seems like a pretty poor use case for a filter that’s meant to increase air intake by doing a less effective job of filtering the air. After all, there’s only so much room for the filter under the hood, which is usually already filled with the paper filter. So you can’t make the surface area of the filter much bigger, and if your not forcing induction, then the only way to get a naturally aspirated engine to suck more air through the same size filter is to make the holes in the filter bigger and therefore less restrictive. I agree they can produce a little more horsepower (and improve the exhaust note), but unless we’re talking about a truck that’s used solely for towing on pavement, or a pavement poseur SUV that only gets near dirt when driving by road construction on the way to the mall, then it’s a pretty dubious application for these filters, in my humble opinion. (Oh, and I say this as someone with an AIRAID CAI on his pavement poseur SUV. And yes, it did add some horsepower and combined with the 3” cat-back exhaust system, sounds sweet as hell! 😁 if I have to head for the dirt, the factory box goes back in.)

[@DonutsReview]

@@RickinICT what's the stats like 90% of off road vehicles purchased never goes off road. I understand that you'd need normal filters off road, but it's worth talking about the experience with K&N on road. It changes the driving dynamic so much. Also lost 2 mpg on local drives but gained 2 mpg on longer drives.

[@ingcool27]

Do you have discount on app? I buy carly!

[@tyrereviews]

@@ingcool27 Use the code "TYRES" for 20% off

[@jfnonyt]

I love anything this guy puts out, even if it isn't fully tyre related, he is just so meticulous with his testing.

[@tyrereviews]

Thanks dude :D

[@jaydunbar7538]

Go check out project farm like he said, if you like this meticulous testing you will surely enjoy project farm as well.

[@aygwm]

Short answer: “No.” Long answer: “Possibly, but no.”

[@zr1daddy14]

Thank you

[@danielcasillas1133]

Well on a regular car no but if it's tune then yes

[@ScutuRC]

@@danielcasillas1133 I think still no... Maybe few extra hp, but with the money they cost, you better put them in something more efficient... So, still No!

[@patthonsirilim5739]

@@danielcasillas1133 intake tuned and catback exhuast will net you no more 10% percent of power from a stock naturally aspirated engine anything more your talking about full exhuast engine internals cams and proper race intake box and torttle body and proper ecu work not just a tuned like motec or fcon.

[@WarriorOfEden3033]

On a stock motor, no On a built motor, yes

[@Ozaneee]

Finally a not a tyre related video in Tyre Reviews channel

[@tyrereviews]

I hope I can sneak a few in without upsetting too many people :)

[@TS-gg9dk]

@@tyrereviews A natural expansion to other products would be rims. How much does a heavier/lighter rim, with the same tyre, affect the ride/handling/acceleration/braking etc? How much difference in tyre width fits to a 6", 6,5", 7" wide rim? Let's say I already have this X inch rim, what tyre widths can I fit to it?

[@tyrereviews]

@@TS-gg9dk Also on the list :)

[@TS-gg9dk]

@@tyrereviews Great! Love watching your videos. Quality content! 👍💪

[@chuck8058]

@@tyrereviews No!!! This is good. I admit to being tempted with an Eventuri for my Audi ( they do look very nice and they claim up to 25 bhp extra!!) You just saved me a load of wasted cash. Thank you!

[@TylerJeremiah]

“10 power” “Hot air bad, even if it’s lots” Couple quotes in there made me laugh 😂

[@rev68]

I found the best way to get more airflow into my M3's engine was to bolt on my supercharger.

[@tyrereviews]

haha nice :)

[@rev68]

@@tyrereviews You have great content by the way. Thank you very much!

[@tyrereviews]

@@rev68 Appreciated :D

[@salmanjanjua4039]

They are absolutely Savage when you do that. Did the first G Power SK2 in the UK and the first Rotrex based UK made kit too. Was insane. Vortech based ESS is also excellent.

[@rev68]

@@salmanjanjua4039 Sadly, I went with Active Autowerke and the HKS GTS8550 which had such issues that HKS USA pulled out of the United States instead of fixing all their bad blowers.

[@95l4lfu]

Stick to OEM, all I needed to know when LLF got his M4 tuned at Pure Turbos, they recommended the OEM housing and filter.. They make 800hp+ monsters

[@tyrereviews]

I did not know that! BMW make a wicked intake!

[@95l4lfu]

@@tyrereviews I know right, lol I was just re-watching - kzbin.info/www/bejne/bIDEao14fZ6Cjdk&ab_channel=LivingLifeFast - 3:40 secs

[@allothernamesbutthis]

don't forget the insurance increase for a "performance" filter too!

[@destroyall24]

allothernamesbutthis no increase in us lol

[@machtschnell7452]

@@tyrereviewsMost OEM spend millions designing intakes. No after market sources do.

[@Freshiemaster]

The intake system on M cars are generally fantastic from stock. The only true benefit from aftermarket is sound.

[@arekb5951]

Same with exhausts in naturally aspirated engines. Engine in Clio 3 RS with stock exhaust usually overdelivers in terms of power, but the exhaust note is a bit quiet. Touch the exhaust and you lose 15-20 HP instantly.

[@sarcastixx74]

This is very true, especially for the Eventuri. It is expensive for what it is, although I really do like the noise from mine, and the low end improvement in driveability.

[@Freshiemaster]

On the exhaust front the benefit really comes from removing restrictions e.g. cats, ppf etc. Weight is the other benefit from exhaust changes but again its quite marginal.

[@arekb5951]

@@Freshiemaster it's not just restrictions in a naturally aspirated engine, there's something called exhaust scavenging that happens around certain RPM, by going catless you might bring down the scavenging effect to lower RPMs, and sure, you will boost the mid-range, but you'll lose the top end and obviously power. That's why some cars (like mentioned Clio) don't like better flowing exhausts, the factory one provides plenty of flow while optimizing exhaust scavenging for max power.

[@EmmaHopman]

@@arekb5951 the only advantage you can get with exhausts is completely removing catalitic converters AND totally reworking the header to scavenge properly with the reduced backpressure

[@tadasstrikauskas1205]

Many guys switch old used paper filter to new K&N or other high flow filter and are astonished by "HOW MUCH MORE HP NOW I GOT, IT FEELS A LOT NIPPIER etc." But they do not take into account that they are comparing OLD USED filter vs NEW. As the comparison should be NEW vs NEW where difference is minimal. Thanks for video.

[@tyrereviews]

Solid point :)

[@artursskabs3951]

Difference I could feel on my small 1.2 tsi 110hp engine, definitely pulls better because of course got more air flow, I used papercross performance air filter made in uk, with claim 30 percent more air. And of course I changed paper brand new to brand new performance filter.

[@AnyoneSeenMikeHunt]

Bigger holes means more air... and more dirt. Project Farm channel have a great film on the dirt filtering (or lack thereof) of high flow filters. I know I'm not using them anymore especially for the minuscule power gains

[@dj_efk]

I’m right with you on this one - a K&N used to be the first thing I did to my cars - no longer since watching the project farm vid! And this video only serves to confirm they’re a complete waste of money.

[@aircommandslipperz]

i was about to tell the Project Farm test on the filters too

[@Nordlicht05]

Some Tuner not related to this video said on a completely other topic something to performance filters. He asked his mechanic on how the turbine blades looked like from cars with performance filters. He said like sanded or something like that. On the other hand I hat a very short period this kind of filter. My blade looks like it had eaten some bigger rocks 😂

[@tyrereviews]

Project farm was mentioned in the video and linked in the desc :) Also yikes @Nordlicht

[@Nordlicht05]

@@tyrereviews i thnink no big deal besides its look. There was never anything wrong and the turbine has over 200.000km.

[@shifty277]

Don't be afraid to make content that is not directly about a car tyre - this was fantastic. The main part I watch your content is your meticulousness and how easy it is to understand your explanations and logic. Thumbs up.

[@tyrereviews]

Thanks :D

[@BiggMo]

I’d vote for a filtration follow-up, find a lab to test the quality of the filtration- I’ve always wondered if some of these high flow filters are allowing dirty air enter the engine - actually potentially damaging the engine. Maybe an interview with an engineer to get perspective on just how damaging abrasive air can be on an engine

[@tyrereviews]

Great idea with the interview :) I'll get researching

[@stephenpage-murray7226]

Read my post.

[@andrewhouldcroft1116]

Definitely more of a difference on a turbo engine, when you do the next video maybe just stick to the ea888 gen3 engine and do a selection of induction kits/filters. So pipercross, bmc, k&n, ramair, forge, racing line, eventuri and stock.

[@alstuart]

Project Farm did scientific analysis of the filtration. kzbin.info/www/bejne/qXuWfWB7YtqZj9E

[@idokwatcher2062]

Yes they do. This is one of the better pages about it www.project200.com.au/dm-iso5011/

[@Cornerer1]

I have Pipercross on my Mk6 Jetta. While power increase is minimal, the biggest difference is how much more responsive it's got in low throttle as well as off-on throttle situations.

[@p-geluk]

But with that message nobody will watch this clip... clickbait af

[@ioannisstavrou2677]

This feeling is called “freer” but I guess it will not last more than 3k kilometers until you loose this feeling. With oil filters like K&N you have the same feeling for 9k kilometers. Waiting your experience if you have 1-2 min for a comment sir.

[@staison999]

I’ve installed aftermarket intake system on my bmw 118i. Best decision ever. Don’t think I got any power increase but the car felt more lively. Not to mention the sound! Got that aggressive blow off sound.

[@greybuckleton]

Really great to see someone not just talk about intakes but actually do back to back dyno testing. WHen I used to work on Hondas, there was a decent cold air intake system that placed the filter inside the right fender. That was good for power above 4000rpm, 3-5bhp. Just dropping a pod inside the engine bay, sounds great, but is often worse.

[@dj_efk]

Jonathan, thanks for the interesting swerve in terms of subject matter - As someone else has said, not only do these aftermarket filters make no worthwhile performance improvement, As you called out, Project Farm has proven just how much more dirt they let into the engine too, so they are to be completely avoided - spend your money on OE or else top quality aftermarket standard filters instead!

[@gwcrispi]

I know for a fact that K&N filters give you 1 extra horsepower. Because when you buy one, it comes with one K&N sticker and everyone knows you get 1 hp per sticker...

[@tyrereviews]

oo I need more stickers

[@photosmithy]

This made me chuckle, back in my youthful days i owned a Integra type r, air filters were an area of hot debate ie 50% believed in stock, the other 50% stated better performance with other filters. I was in the stock camp. Good seeing your great testing methodology being used on other car related stuff.

[@tyrereviews]

Nice car :D I always wanted a DC2 then 5 then got an SW20

[@nodrogkam]

So glad you referenced Project Farm test. It was one of the best out there. Thanks for making the vid!

[@tyrereviews]

He's great :)

[@rolexr]

Best Intakes are with a completely closed box, tube optimized with a symmetrical cone filter in it. Sucking air really from the outside with a light ram effect. Got one in my 2019 Mustang 5.0 and was really impressed with the result of throttle response and low rpm torque!

[@tyrereviews]

Must sound great too..

[@curtr.5083]

Excited for the E92 series; I’ll keep an eye out!

[@tyrereviews]

I can't wait to actually do it! I've been trying to get this done for nearly 2 years now!

[@curtr.5083]

@@tyrereviews if you can fit it in the budget you should check out the Eventuri air intake plenum for the E92. I have followed Matt Moreman from Obsessed Garage for some time and he installed that modification; it ended up sounding absolutely insane. His KZbin channel is just called Obsessed Garage if you feel like looking it up. Thanks as always for the videos!

[@tyrereviews]

@@curtr.5083 I've seen it and it's absolutely dreamy, I just don't think I'll have the budget: (

[@curtr.5083]

@@tyrereviews it is super expensive; no worries!

[@TheLondekZdroj]

Performance air filter makes a positive difference if it's a part of a comprehensive upgrade, involving at least exhaust and dyno tuning. In modern cars induction systems are very well engineered and if you only change the filter it may lower the performance and increase MPG. Sometimes it will give you the impression of a better performance because of change in the torque curve but those go away quickly as soon as you start recording times or put your car on a dyno :/. For small but noticeable performance gains just keep an eye on the tires pressure and get rid of unnecessary junk from your car :D

[@4G12]

Paper filters are used in hospital grade HEPA filtration systems. If you want more power while retaining top notch OE grade air filtration, just use more filter area, like what BMW has already done in this instance.

[@patthonsirilim5739]

perfromance drop in filter seem to only work for cars with rather restrictive intake from factory cars like bmw m have excelent factory intake that is already insulated and have great flow so its harder to improve upon those cars with just a drop in filter.

[@howarddavies136]

I was going to mention that project farm video right as you mentioned it. That K&N test was ridiculous. I've used K&N before and I probably never will ever again.

[@masonwright5128]

I did notice a slight gain in torque between the filters on the bmw as it being NA usually hard to get bhp from stuff like this but torque seems to get increased with more flow on naturally aspirated engines

[@JRCarReviews]

Filter alone won’t do much change, you need to remap the computer that regulates amount of air let in the engine. Computer controls amount of air mixture with fuel to burn and create power. When you remap your engine, only then you would make use of filter that lets more air thro. Be aware more air means more dust. K&N filter has oil over it to prevent that, but it also gets dirty faster cus of that. I would avoid it and just use stock air filter.

[@yellowfits9200]

This Chanel really needs more credit this guy has been doing this video with iron balls, most of the guys or maybe I should say all of them make Dyno tests with open hood and huge fans on the front

[@OxBlitzkriegxO]

it should be noted that gains are going to vary based on each vehicle tested. some vehicles have better stock airboxes than others. due to increasing emissions regs, most vehicles nowadays actually come with cold air intake setups from the factory. or at least, they have much bigger filters than the engine needs to run efficiently. still, some of these cars have smaller filters or extremely complex routing. changing it out for a completely new setup with a different size filter can actually yield gains. the hp increase on the VW most most likely due to the radius on the tube at its opening, more so than the filter itself. thank you for testing all these with the hood down. thats a detail that a lot of companies like to omit in order to show bigger gains.

[@ВіталійДедік]

I highly appreciate any content here as long as it's somehow car-related and made with such attention for detail. Godspeed!

[@tyrereviews]

I appreciate that!

[@tonyb1223]

It will depend on the car. I had a new 2003 Subaru WRX STI Spec C, ran her on a dyno at around 800 miles on the clock, pre and post air filter change. Car made 280bhp with the standard Subaru filter (paper), replaced with an official STI filter (cotton I think), made 292bhp. The car was still loosening up, would eventually make 312-316bhp regulary on this dyno (stock map), kept using the STI filters from then on, at £45ish every 2 years 😯

[@jakepocock1616]

I had a bmc in my old m3, and it sounded mega. Worth it for the noise alone!

[@tyrereviews]

I don't disagree about noise 🤤🤤

[@DSGAuto]

Bought a MST Cold air intake kit for my old Audi A3 8V 1.4TFSI 122hp and the difference was feelable, way better on higher revs, more responsive and was 0.1s faster :) and it keeped the car cold on higher speed + lower consumption on high speeds Cons was that the car was weak under low rpm... +the sound it maked was insane, but a lot of noise in dayli driving. didnt dyno test it.

[@robi4387]

Thoroughly entertaining. Once upon a time I had a tuned 320i, mapped with a new ECU and special filters. I worked on a road construction site that was very dusty and the filters got blocked. Found that out when I got on to the motorway and the engine gulped air. It swallowed the S&M gear and was a tow job. Just buy Mahle from a shop that has a high turnover. Cheap stuff on eBay may be delivered to your door, but can be old and flabby or cracked.

[@voltagesk8]

Interested to see how these affected the power curves on each run. Its not just about peak power figures, sometimes they can add in the mid range and increase the overall area under the curve. I guess not all high flow air filters have bigger holes either. If you add surface area by increasing the number of folds for example you can increase airflow without increasing the size of the holes. Obviously manufacturers will optimise components based on a number of factors, cost and performance being 2 of them. On a high performance car like the m3 I would expect performance is given a bit more priority. And we all love the sound of an induction kit!

[@JensenAzotea]

You snapped for the ProjectFarm shout out. Just found your channel. Let’s see more content other than tyres, your channel just makes it fun to learn

[@tyrereviews]

Awesome thank you!

[@cavsri]

Excellent video, really enjoyed it. Looking forward to see the E92 build series. Could you cover what you have done to it so far to get it up to scratch? That would make for an interesting video. I have seen the Project Farm video on filtration. As a lifelong K&N user it was quite shocking. Safe to say that I have gone back to OE paper filters on all my vehicles. That tiny increase (if any!) in power is not worth drawing dirt through the engine. Clean, genuine paper filter at every service for me now. If you could do a video on this that would be great. With your level of attention to detail it would be an eye opener for a lot of people! Keep up the good work.👍

[@tyrereviews]

That's a good idea for a video, though if I look at all the costs involved I might end up crying! I'll add it to the list

[@jameshaulenbeek5931]

I was going to mention the Project Farm video, but you did already! Very good video! I think a lot of people get hung up on more engine noise making more power - I've been guilty of it. An intake will only allow for more power when the entire system is upgraded and tuned - you can't pull in more air if you can't push it out more effectively, and you can't use the air if you're not getting the extra fuel to mix with it and burning it at the correct time. It's all about the balance. Now, if you want more engine noise, or you want to hear that sweet, sweet turbo spooling, an intake will help with that... a little. However, depending on what you use, you may actually cause damage.

[@tyrereviews]

I do like the noise!

[@jameshaulenbeek5931]

@@tyrereviews more noise is more fun!

[@Brandondean614]

You go above everyone when it comes to these comparisons, and for true enthusiasts we appreciate you very much.

[@tyrereviews]

I appreciate that, thank you :)

[@robertolouth7468]

Would be interesting to make a try with NO filter at all... just to see, maybe assuring it gets fresh air. Nice work as always Jonathan!

[@Haksdo2]

Sometimes changing the airfilter system can even significantly lower your power. Most cars' stock airbox is pretty basic, but pulls fresh air from outside. Cheap "upgrades" often require you to remove that airbox and put a round filter under the hood. This makes you pull in (much) warmer air, since it is now pulling air from next to the engine. My tip is: generally it is hardly any use to change the airfilter setup, unless the original system is very restrictive. And even if that is the case, sometimes it is better to then slightly modify the stock setup. The airbox in my car had a sort of restrictive pipe inside the airbox. This was easily removed, it was just clipped into place (so I didn't even have to break anything). The only thing I then did was put in a flat K&N airfilter and for less then 40 euro I was done. Not sure how much I gained, probably low single digits in HP and maybe around 10-15 Nm, but the investment was very low and the car feels a more responsive on the throttle, mostly in the lower to mid RPM range. It also sounds a bit nicer, which is a bonus.

[@patthonsirilim5739]

bmc or K&N drop in filter your gonna get 1-2% percent better at best the intake sound engine response is deffinitly a bonus if your in to those sought of thingi have brz mt have bmc filter tuned and carback exhuast makes about 15 extra hp combine not a significant bump in power but the car feels great better engine response more race car sound.

[@dragan3290]

On a modified engine I have compared a spotless standard panel filter to the k&n and it has made it more crisp and revs out quicker! I have used heat shields and aluminium with fibreglass racing insulation tape to oblivion! I fitted a temp sensor just before the throttle body and im getting 2 degrees Celsius above ambient temps. Cheers from Australia ❤

[@mituc]

So there are two different situations to discuss here. 1. The NA engine. There engines are pure unaided air pumps. They can suck air in as much as configuration allows (intake, exhaust, intake and exhaust valve overlap, intake valve timing using the variable valve timing actuators/pinions they may have if it's the case, and so on). The other things that matter when talking power are kind of fixed: ignition timing advance and air fuel ratios. However as you've seen the first run produced quite a bit of power and that was because the engine was cooler after it was probably stopped for a while to strap the car on the dyno. Once heat soak comes into play you will see a drop in performance no matter what you do, more evident than with turbocharged engines, simply because they suck in volume and not mass, because that's how they work. 2. the turbo charged engine. These engines are load tuned, meaning that at a certain RPM and acceleration pedal opening the ECU software targets a certain load. load is directly proportional with the mass of air. This means that depending on the conditions (intake air temperature, atmospheric pressure) the ECU software will adjust the turbo wastegate up and down to make it push the desired amount (read "mass") of air to hit its target. If the conditions are harsher (higher IATs, lower baro pressure, less permissive air filter, and so on) you will simply see higher wastegate duty cycle - read "the turbo will work harder" so reach that target. With the factory calibration it will eventually hit it no doubt, even if there will be like 0.2-0.5 seconds delay due to the more aggressive actuation for the wastegate. So no matter what you do these turbocharged engines will stay around the load target at each RPM point. The only things that will affect power will be the ignition timing andvance and air fuel ratio which may vary if the post filter (intake) temps are high and/or the intake manifold air temps (BAT - boosted air temps) are above a certain threshold, which will make the AFRs go richer and the timing go less aggressive to prevent knock, both having a negative effect on peak torque at each RPM point (torque * RPM * some constant will give you the actual power). As a conclusion, these high performance air filters will not add that much power, usually none at all. Yes ,the factory or OEM-like paper filters seem more dense but also look at the total surface compared to the cotton wet or dry performance filters from KN, AEM, RamAir, Green, whoever: the factory filders have a larger surface even if when comparing 1cm2 with 1cm2 the OEM-like seems more restrictive. The intakes are sized properly so that with the OEM manifolds, exhaust systems, catalythic converters, turbos when it's the case, and so on, no chocking will actually occur in normal conditions. Another common mistake people do when they add cone filter intakes is that they neglect the radiant heat which is now sucked by that filter, while with the factory air box the air is drawn from outside the car, totally or at least partially. And one more thing people get tricked by when replacing the factory intakes with aftermarket intakes which also have a different Mass Air Flow sensor housing is that at the beginning they will see an increase in power due to the increase in air flow and leaner AFRs. But that happens one or two pulls before the ECU adapts with the fuel trim mechanism and compensates for the air flow deviation just like it does between summer and winter, or with fuels which may have more or less oxygenated additives in them (usually ethanol). When the car gets modified, even with an ECU tune, these better flowing filters come into play and indeed may bring performance past a certain point. Up until that point they are like trying to get a drop of water through a 16mm garden hose or through a 1000mm industrial drain tube, the drop of water with go through both with the same speed because it will not be enough to have enough restriction. However when you start pumping more water the 16mm garden hose will show its weaknesses compared to the 1000mm industrial drain cement tube. Long comment for an youtube post, but I hope this clears it all :)

[@tyrereviews]

Great comment, thanks for taking the time to write it all up!

[@solitaryclusterofneurons598]

*"When the car gets modified, even with an ECU tune, these better flowing filters come into play and indeed may bring performance past a certain point"* So which modifications are you referring to here? And does it depend on aspiration? Asking because you seem to know your stuff :)

[@mituc]

@@solitaryclusterofneurons598 Yes it depends on aspiration. Basically if you test different air filters (OEM, OEM equivalent, aftermarket, cone filters of various kinds) you will not see any differences (or too small to even care,

[@evansisgreat]

Glad to see you turning your skills to other things. But don't stop the tyre videos, you're the only one worth trusting out there!

[@tyrereviews]

I appreciate that! Tyres will always be my primary focus :)

[@asphalthedgehog6580]

You can test the differential pressure over the filters using a vacuum cleaner, two boxes and pressure transmitters. You don't need cars to test that.

[@jeffalan6339]

I watched several videos to consider cold air system or just performance filter. One an engineer showed a dry filter from AEM beat K & N in flow and filtration. I had old school Nova SS used a K & N with a lunati racing cam in 406 small block not sure if dud better than a Delco. My Monte pulled 305 out 454 in again k vrs AC. With the immense torque uncertain. I compared K & N to the AEM notice the AEM has more filtering. Just like the video stated and demonstrated. The k had 2 layers of oiled cotton guaze vrs AEM 4 fine weave cotton. It helps my off the line sluggish problem I modified my Silverado air cleaner it really woke it up. MPG is better engine sounds better, exhaust I'd quieter until apply more throttle then sunds very throaty. It makes the hills easier no more 4th to 3rd a lot, take off is much better. Try it and see what uou think. K& N 79.99 AEM 59.99 Both can be cleaned and are one dry other oil.

[@focus550]

When you think about it logically it's not a surprise. The Manufacturers who spend millions developing Cars, Engines and everything about them design the most efficient airflow. Unless you change multiple items and parameters, a one item change is not going to work wonders.

[@tyrereviews]

I can't wait to try it with the exhaust and remap

[@chrishernandez2490]

Yes and no. I agree that the M3's intake was pretty much maxed out from the factory. But there are still Tons of cars out there that have a restrictive intake and can be improved upon

[@amwartwork]

its a shame that the BMW guys forgot to retest all those common faults tho eh? hahahahah

[@manu25asa3]

It's strange but the airbox is called a suction silencer in the bmw etk. And believe me, in my 328 e46, the box has a strange shape with hole and short hose going nowhere. So remove the component 'lowering the sound' and it might be possible to gain something... at least a better sound, a far better sound, oh my god. Installing a carbon Simota is the first piece I would change if I had to change of bmw. (the cone breathes the air coming from the region of the anti-fog light).

[@alexlee-isted5046]

Great test. I have fitted a new intake to my DC5 and my 3.3 Kia Stinger but for noise alone and they sound fantastic. Never believed they give performance gains anyway. Especially nothing you would notice sat in the car.

[@GeorgeAusters]

I see you only gave the peak figures, be interesting to see if any difference throughout the rev range

[@p-geluk]

Yeah but that’s not interesting.... because then you can’t be negative about what is everyone is doing. Now everybody will watch this because they are offended because they have it on their cars.

[@One_Guy]

What we have here is a case wehre we have a properly sized air filter (perhaps even bigger than whats needed)on the BMW M3 where the CFM the airfilter can move is higher than the demand of the engine... Then we have the Turbo engine where the CFM the air filter can move is lower than the demand of the engine. Glad to see a car manufacturer that knows how to properly size an intake for the application and one where they're under sizing it. Would be nice to see you return to this with a tuned engine as those small gains you're seeing on that turbo engine will be way bigger when you start tuning the engine to ask for more air and more fuel over stock.

[@tyrereviews]

Perhaps it's time for some maps :)

[@joaocosta7284]

Awesome vid! Congrats for venturing away from tyres!!! I can imagine it wasn't an easy decision but it worked!

[@tyrereviews]

Thanks! 👍

[@bushmaster1740]

Gauze filters allow dirt particles to enter the intake which wears out the rings and adds to valve deposits, especially with DI engines. Think about those modded Honda Civics blowing smoke from the tailpipe from a K&N filter. The dirt gets into the oil and shows up in Used Oil Analysis as silicon, and extra tin, from the rings.

[@DBazza4]

I have a similar filter on my Golf R to the PiperX you ran on the Skoda. It’s a RacingLine filter. I was running a cotton K&N filters on my old cars but after PF showed how much dirt they let in, I didn’t bother anymore when I got my new car. The foam ones are supposedly better at filtering than the cotton ones whilst still giving you the performance gains.

[@comedyman112]

6:30 imagine spending 800 GBP on the eventuri and your power drops by around 4 BHP. I can't even ... LOL

[@motorcycleguy]

I'd love to see some testing of wheels with different mass and see the impact to acceleration and braking

[@tyrereviews]

It's on the list :)

[@ledgeri]

I was about to check the recommended video, when i was like: Ohh why it is so familiar? I just watched 1-2 videos on that channel yesterday in a totally other (AA batteries) topic. I like when someone whom i trust, trusts someone whom i already trust :) and gives a mention like this in this video. Feels good being on the better half of the platform :)

[@tyrereviews]

Project Farm is such a great channel!

[@cooperSpartan117]

I have a current generation mini cooper S. I've had that on a dyno with a stick filter and an ITG panel filter. With the ITG I made an extra 5hp and about 8nm torque. Not massive gains and I wouldn't say it adds power. The main reason I got is for noise. Most likely a placebo affect but the car seems slightly more responsive too

[@tyrereviews]

100% on the noise front :D 5hp is a notable increase

[@peterwatson9047]

Is this small gain without any remap or piggyback and without other mods? Intested because my 230i has the B48 engine like the current Cooper S (though is longitudinal mounted, with air- water charge cooler and different tune from factory)

[@cooperSpartan117]

@@peterwatson9047 it added 3hp in standard form. I was getting a bluespark tuning box fitted at the same time with that fitted the filter was adding a 5hp gain. (tested with both itg and standard filter)

[@rajivkishore]

Please make more videos on Performance Engine Mods! I'm a 2018 VRS 230 owner. Really looking forward to these mods. Please please please continue on your modification journey. You will serve as a fantastic reference point on my journey. Thank you so much🙏

[@tyrereviews]

Will do! PS, want to buy a lightly used air filter? ;)

[@Trendyflute]

I couldn't help but notice how both engines gained 10+ Nm of torque with a new aftermarket drop-in...not bad!

[@tyresmoker4]

I noticed right away, he totally missed it with the k&n, 10nm is a pretty gain!

[@jazzmangocats]

Still find it amazing that you Brits are able to measure brake horsepower on a roller dyno. I wish we had that modern technology down here in Australia :-)

[@tyrereviews]

haha Dyno Dynamics does wheel rollers

[@TheCasualPanda]

I'm glad you mentioned project farm, otherwise I'd have made mention of it. I would take the hit in hp just for better filtration. I have an ea888 car as well, and i do want an induction system. The only ones i will consider are the ones that will let me use the standard paper panel filters. So far, that would be the revo carbon kit, and the 034 motorsports p34(non carbon) intake

[@tckash]

great results! you saved a lot of money and efforts for a lot of people! On a side note: "Akrapovic" pronounced like "a k r A p o v i ch" with a stress on a second "A" and "CH" sound at the end. Greetings from Slovenia!

[@tyrereviews]

Thanks for the info! I'll have to get practicing!

[@jonclark25]

Think the panel or cone filters make sense for a car that sees most of it time on track... but any considerable road driving I think outweighs the pros of them pretty fast... can spend all the money you want on mods but if it can't run reliably whats the point aye!

[@alenseven11]

Dude, I missed your tests and reviews, this one just follows all the great tyre reviews! Looking forward to updates on M3 and all other content from your channel. 💪🏼

[@tyrereviews]

Glad you like them!

[@mudachuka12345]

The oil coated filters coat the maf sensor and they become contaminated and stop working.

[@L-Noble.YT_Hi.Res-Soundminds]

That may happen if you dont know how to coat the filter correctly because alot of people put too much oil. But if you do one pass with the spray on each pleat then you will never have anything to worry about.

[@mudachuka12345]

@Rob K. understood but it defeats the purpose of fitting a performance air filter if the maf can’t read the airflow and temp.

[@vasdimo]

Really nice video and thanks for your time and effort to share this :) To get the correct power 7:01 don’t change the filter, just maintain the stock one! It will give you only,impressive sound as the flow is difference on aftermarket filters. For me I will save more money and I would go for remap, filter, full exhaust in a proper dyno so all of them can adapt with the programmer.

[@jjt80]

Really interesting review, one area that would be nice to see is throttle responses and or turbo spool time. I've felt no more power with mods like these but it "felt" like I had better throttle responses... I wonder whether a neutral rev responses time would be a measure. An overlay of torque figures would have been interested as they did see gain! Either way a very fair test all things considered.

[@tyrereviews]

I'll see if i can work out a way to test that properly!

[@MrAndersie91]

Dont forget to do the "Intake Hack" on the Skoda Octavia!! I did it to my own, although a 2.0TDI 150, and the bum dyno feels that it is sharper to respond on throttle & turbo.. Open up the Air Intake in the Grill/Bumper area, and block off the Rear Opening straight to the engine and cut open the right hand side for a Dual Intake

[@tyrereviews]

ooo I'll check it out!

[@MrAndersie91]

@@tyrereviews Just KZbin Search "MQB Airbox Modification" and it should be the first one.. As well as doing the Intake Mod, i've also installed PiperCross Filter and have the Darkside Development Airbox to Turbo Silicone Pipe, so for a TDI, it makes lovely spooly boi noises now 🤣🤣

[@tyrereviews]

@@MrAndersie91 Zooooooooooop pew pew pew

[@MrAndersie91]

@@tyrereviews Hahaa.. Nothing that extreme unfortunately being a diesel, but theres a definite a low pitched Induction Spool Up and a "Pssshhhh" when you let off in a high gear and low rpm, additive around town hahaa

[@alex_wfa]

Best bang for buck for turbo engines, stage 1 remap. Dyno, tune, and you're off with more hp and torque. If all you want is great performance from what you have. Just use quality or oem filters, and change the oil as often as possible.

[@tyrereviews]

Solid advice!

[@andyohara1393]

Jonathan, another great video and confirmed what I though about aftermarket fillers and air intakes on a naturally aspirated car. Looking forward to the M3 build.

[@zedorda1337]

The only way to get more performance from an air filter is to increase air flow. That is only possible if you reduce the filtration of the air filter.

[@purplehazeffc]

An Australian 4x4 magazine done a filtration test with stock paper filters vs K&N cotton vs Foam filters on a Toyota Landcrusier. The K&N type do flow marginally better than foam, but they both flow heaps better than stock type paper.. But as you have shown there is not much power difference between the three... But ??? When they get dirty.. The K&N clogs up 1st followed closely by the stock paper. While the foam type kept flowing. Then there was quite a difference in power between the three, with the foam keeping the power as the other 2 fall away Again as you shown with the dirty K&N.. On a stock engine, filters don't do a great deal. But on a modified or retuned, chipped etc Then they are a benefit

[@stephenpage-murray7226]

Benefit?? Exactly the opposite...

[@poppogigio1848]

No more HP but between 6 and 10 Nm more torques from everything except the stock filter

[@I_know_what_im_talking_about]

Because the engine does indeed breath easier when using an air filter with HOLES in the media. Hahaha. A bump in power anywhere in the rev range is expected... technically. 🤷🏻‍♂️ But I’d rather my engine breath CLEAR Air. 👍🏻

[@daniel635biturbo]

I like to add that sometimes oiled filters like K&N Cotton filters can shed oil particles which can damage/contaminate the engines airflow sensor. (Not a problem for everyone) Overall a very well conducted test, just like your other reviews. Most really do miss the heat issue, I always feel a bit sad when I see a modified car with the air filter stuck straight on the turbo.

[@tyrereviews]

My first car, and MG ZR, I did exactly the same thing. Intake in the engine pulling in all the hot air.

[@daniel635biturbo]

@@tyrereviews Well, we all must start somewhere. :)

[@AndyfromSurrey]

Interesting, results were as expected though. Removing air box and sucking in warm/hot air from engine bay is never going to help. I tend to change my paper filter twice as often as you should with an OE spec one.

[@richwvu]

I've got Eventuris on my E60 M5, the noise alone is worth every single penny of the buy in cost, adds such a nice grunt in the mid-range. They're awfully pretty as well.

[@tyrereviews]

No arguements about the noise :D

[@FernandoFuvio]

What happened to your Octavia? That whole on the curve, what did it mean?

[@tyrereviews]

The car is pulling back ignition timing hard for some reason, I suspect it's a stuck wastegate and it's overboosting but I've not had time to check yet

[@michaelmotteram1682]

Would like to see a fuel test, supermarket and premium brands with 95-100 octane (and diesel alternatives). Great video as usual👍🏻

[@tyrereviews]

Great idea, I'll add it to the list!

[@theenglishtrucker1849]

If you do a filtration test, you NEED to make the filters vibrate. The running engine causes K&N filters to vibrate and this shakes the tiny cotton fibres side to side very fast. Thats how it stops tiny particles. Project Farm's video did not test the filters while they were vibrating, simulating a running engine. I bet the top side of the stock airbox is still as clean as it was from the factory, K&N is used. My car has had K&N for the last 40k and its shiny clean new looking plastic above the filter. Dirty airbox full of shit below the filter. (All cleaned out now though). Love your channel, just wanted to make the point about vibration. 👍

[@tyrereviews]

Oooo great information, if I get round to testing filtration I will be sure to vibrate it!

[@stephenpage-murray7226]

Get a UOA to confirm your stupidity

[@theenglishtrucker1849]

@@stephenpage-murray7226 That is how they work.

[@stephenpage-murray7226]

@@theenglishtrucker1849 They don’t work. UOA’s confirm it

[@Phos9]

Regarding the thin foam filter, rather than being pleated, foam filters use their depth to capture particles.

[@Byley-e7h]

Just ask your self “ why do manufactures use paper filters?” Believe me stick with paper . I’ve used K&N ,Green cotton and pipercross. All they do is allow more dirt into your engine and shorten its life.

[@danrickard1911]

Absolutely! If you want to trash your engine from lousy filtering, use a K&N filter. If you want to see how awful the K&N is compared to a paper filter, look at the “Project Farm” test.

[@davidlunsford6155]

Here in the US, k&n claim slight increase 🤣 why do I want to get oil on my map censor.

[@ajpasa]

Well done, thanks for running this test. The V8 is difficult to evaluate, specially since other issues might have been happening during the test.

[@atrgames]

People are too obsessed with HP but they did make more torque... And that is really interesting

[@OlavAlexanderMjelde]

We did this dyno test on older cars many years ago, like turbo converted Volvo 240 and on a stock VW Golf. So not to our surprise the Golf had "zero gain" (within margin of error), and that was evn with hood open and a huge fan in front. But the 240 did have an improvement, but you can get an even better improvement there by just rerouting the preheat hose from the stock airbox to cold air. Thing is that even in these old Volvos there is a prheat flap that is controlled by ambient heat and in theory it should open and close, but on old cars its oftne halfway open all the time, so they then suck warm air even with a warm engine. That hurts performance of course. But then rerouting the hose to cold air, removing flap will still be better than a conical filter. SHould be noted one can of course fit a drop in performance filter too.

[@matejmicola4057]

1:12 seems like your filter sucked in neighbours cat

[@jaydunbar7538]

Project farm is epic, I watch everything he does and frequently use his data for purchases.

[@romarmb.realtor]

Test it on 4cyls and you will know the difference between stock and aftermarket intake

[@MrSonicAdvance]

Definitely would like to see a filter test on Tyre Reviews.

[@9_Thirteen]

I used to have the injen cold air intake with K&N filters. They do allow for more HP, but you’re giving up air filtration quality. Now I stick to OEM.

[@The_Cheques_Offender]

What have we learned? That Eventuri are a bunch of theives 😂

[@shredthetrack6858]

But they Look good

[@machtschnell7452]

@@shredthetrack6858 That is all you are buying. Looks.

[@E9X330]

@@machtschnell7452 and sound

[@hotrodskelatorful]

Project Farm is an awesome channel. Thank u for the Dyno test to put the talk to bed. Dirty filter = bad. Hot air = bad.

[@-DC-]

OEM's for all their detractors do know the odd thing on vehicle design after all, Aftermarket Air filters are really only good for emptying your wallet.

[@DashCamSerbia]

Aftermarket "performance" manufacturers mostly earn money from RICErs.

[@daniilpechenev4014]

Really good test that shows to us better spend money on something more efficient than aftermarket air filter!

[@Dim4ik2012]

just buy a new OEM filter, and spend money on good wheels and tires

[@MrChielo007]

A test I have been waiting on for ages, thanks for the effort!

[@tyrereviews]

Hope you like it!

[@keco185]

I put one of these in my tesla. Didn’t change anything.

[@thepurdychannel8866]

It made the vents blow out more air😁

[@tyrereviews]

😂😂😂

[@Byley-e7h]

Wonder if K&N do high flow performance cabin filters 😂

[@ItsJustElenore]

It's almost like the engineers who originally made the intake system kinda knew what they were doing. For the price of one perfomance filter for my car, I car get, like, 10 years worth of paper filters. Also, a previous owner of my car had a k&n "performance" filter installed and the airfilter oil killed the barometric pressure sensor in the MAF, which is a *great* side effect.

[@TassieLorenzo]

Some cars are better than others Langam... Mk3 Megane RS uses the same air duct and air filter as every other Megane... It's very, very rudimentary and just pulls somewhat cold air vaguely from behind the headlight [it's not a fully enclosed duct to take cold air from outside the engine bay :( ].

[@ItsJustElenore]

@@TassieLorenzo Let's not pretend like a cold air intake does anything at all besides sounding cool.

[@das_enk]

"Do Performance Air Filters REALLY Give You More Power?" No. now lemme watch the vid turns out I was right

[@tyrereviews]

:D

[@allenmmcfarlane4977]

Project Farm was amazing and your video comparison was fantastic... keep up the great work...

[@tyrereviews]

Glad you enjoyed it!

[@innersoul287]

Damn lol so disappointing , and I was really thinking of putting a short ram to give my 2010 maxima a little bit of a boost 😭😭but thank you very much because that would've been money down the drain

[@kupasotomotif]

It can depend on the quality of the fuel too. Sometimes, more air flow does not mean better. Making the pipe to the filter smaller can produce better boost to, especially at low rpm. Good for hiking.