Dyno testing POD FILTER Performance Claims | CASH vs TRASH

We take our cars to the Dyno to power check our mods. But these were not the results we were hoping for on the Peugeot and the Swift Sport...
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Also something to note around Mighty Car Mods: we are normal guys and are not trained mechanics. We like to make interesting car mods and show you how we've gone about it, but we can't promise that anything we show you will work for your particular car, or that you won't harm yourself, someone else, your car or your warranty doing it. Please be safe, be responsible and unless you know what you're doing, do not fool around with very serious machinery just because you've seen us make it look so easy. Talk to a qualified mechanic if you are in any doubt. Some of the products featured in this video may be supplied by sponsors. For a list of our current sponsors please go to mightycarmods.com
This video presents our opinions on the selected products, and as such the views expressed may not necessarily reflect your results using the same products. The materials in this video have been prepared for general information purposes only. The information in the video, may not necessarily be accurate, complete or current. No person should act or fail to act on the basis of these materials. This video is an expression of opinion only.

[@bradentibbles]

I feel like an "out of the bin" opportunity was missed 😂

[@rustymonaro184]

Yes I like that call. Or should have had a purity box

[@brewingfarts]

hahaha yes mate

[@Sam-lr9oi]

just playing the "in the bin" clip backwards would have done it for me

[@Afraz_9n3]

​@@Sam-lr9oi bin the in😂😂

[@kilovwdude6457]

It's a fake out

[@bradsoole]

Of course Marty lost power. He got rid of his water cooled air filter.

[@bigkingy9483]

This deserves a pin😂

[@ZedKay86]

🤣

[@motomenace86]

your actually not wrong lol..

[@tzwientjuh]

I just started to watch, thanks for the spoiler

[@bespincustompropsbombarta8300]

😂

[@williamstewart3469]

To unlock the 5 extra kilowatts from the pod filter, you first have to paint front brake calipers red, it's written in the fine print. I heard it on the internet somewhere 🤔

[@hangrymachinist]

😂

[@LTT.Official]

Also adding some HKS, Greddy and Haltech stickers adds a further 10hp.

[@marcogdini1275]

😂

[@michaelblacktree]

Don't be fooled by the fancy looking pod filter. The real gain comes from the sticker included in the package. 😛

[@Winning9999]

Worked even better if u have drum brakes and paint them red 🤯

[@benraymond4435]

I would love to see you push back on K&N on this. That kit was supposedly made just for that car, and they "guarantee" a horsepower increase. I'd love to see what they have to say.

[@jimybo20]

Agreed

[@mickmurphy92]

As if they need that headache

[@obscurevisuals]

Somewhere in the fine print it probably says the car has to be tuned

[@armoule8596]

there was no fan in front of the cars when they ran on dyno, they were just gulping hot engine air, and Moog had the genius idea to place the air intake BEHIND the engine (which actually adds restriction xD )

[@KeithDenny]

​@@armoule8596 there is the big blue box @ 2:27

[@qwertiee]

That settles it. Everyone complaining about the price of the K&N air filter had a valid point 😂

[@graemejohnson9025]

They are a Con..

[@crisnmaryfam7344]

It settles almost nothing. If you go look at a factory bike, anything modern to in the last 15+ years. Take the factory paper filter out and get a Sprint air filter (mind you this is a TRACK only filter and actually filters almost nothing) and you will in fact gain horse power, that you can measure on a dyno. Chris Moore at Moore Mafia has videos up showing it. However, as I mentioned, they filter near on nothing, so naturally, its highly ill advised to daily drive/ride something with a filter like this, and may even be illegal in some places.

[@graemejohnson9025]

@@crisnmaryfam7344 I am 62. Back in 1981 I had Holden hj show van. Running a 202 with yella terra head, 350 Holley. Pacemakers.. I drove from Sydney to Newcastle, with air cleaner on. Then back with air cleaner off.. No difference in Performance..

[@graemejohnson9025]

@@crisnmaryfam7344 yes it is illegal to put a pod filter on your car in most states..

[@nigspeed]

Why no dyno run in the same session with the original intakes back on ?

[@gippo5977]

would have been good to see the old air filter back on and a retest of the swift. just to make sure the drop in power was real and wasnt some odd dyno issue

[@williambartholomew5680]

That and isolate the problem being the new muffler or the new intake

[@4bidn1]

@@williambartholomew5680 or the bigger wheels

[@martin1649]

@@4bidn1 17"s are too big for these two anyway.. both would perform better on smaller wheels BUT probably no other option if you want to run Cup 2s..

[@tylerp4130]

Exactly what I thought, I thought they were going to.

[@Alians13]

@@martin1649 17''s come as standart on the swift sport so am pretty shure its meant to run 17 inch wheels tire size ofcourse can vary slightly but idk those sizes for the swift atleast seem legit

[@metal4lifetime]

put back the stock filters and do a dyno run again, would love to see the results

[@AdxmTS]

Exactly in my opinion it's only fair if you've done a test before and after on the same day, anything could've changed in the time between the dynos

[@alexandermichaels6283]

@@AdxmTS was ganna say that different dyno days makes a difference/ different dynos

[@SmokinGunn]

This test was complete garbage. Should have tested before and after, same day, same dyno. These guys are only making money from this shit, the quality of this channel has gone down the drain in the recent years.

[@ryanbowden2594]

This is exactly where Scotty’s sage help is needed… he is a diagnostic wizard and makes an awful lot of sense every single time.

[@justinlawrence6790]

If he wasn’t so hypocritical I might agree.

[@zechsblack5891]

He ran off with my last paper bag and can of maf cleaner

[@Frank_Nemo]

If Scotty knew so much then he wouldn't have such damn silly hair.

[@craigdavies8099]

My guess is the different wheels contribute to power change/loss. More friction with grippier tyres, larger tyre circumference is a power killer.

[@traviswindsor2028]

yep should have run them up with same wheels/tires as last time

[@unavailable8681]

Absolutely. Especially marty's cheap wheels, which has a lot of additional weight further out compared to the old wheels. Put the old wheels back on, and he might have a marginal gain.

[@jett8225]

Yeah but aren’t the newer wheels lighter?

[@vaughanrix7610]

I agree

[@matthewsmith1461]

It’s kind of hard to know for sure what was going on unless you put the stock air box and filter back on and do a dyno run the same day to see if there were any other variables involved

[@MrMarty77]

Yeah I'm pretty sad that they didn't do that.

[@michaelblacktree]

That's what I was thinking, as well.

[@Nabeelco]

@@MrMarty77 They've done this before on a much older video, including swapping back on the same day. The result was the same. Pod filters suck, K&N especially. They're made for suckers who don't understand how airflow and intakes work.

[@r3games1985]

@@MrMarty77 They have done it in other videos. The aftermarket air intakes have always been a scam.

[@mikescorral2998]

"pod" open filters in an engine bay is the worst thing you can do to a car. Especially when it sits directly over a hot engine. $500 for that? Moog got screwed.

[@Lolan1111]

I've been a Journeyman tech for 10 years now and as most people have pointed out there are many many things that contribute to power loss when putting on "Cold air intakes". But the one thing that always seems to bother me, and i know it shouldn't, is no one likes to talk about how 90% of Factory intakes ARE COLD AIR INTAKES. Almost every car draws its air from either the grill or the fender from factory. I mean think about it for one moment people, you dont need a cold air intake because you already have one! If it was as easy as simply changing a pipe and a filter to gain HP the Manufactureres would do it instantly! Anyways thats my rant for the day. As always, keep it up guys your videos always make me happy and put a smile on my face. Good job

[@uptownsamcv]

exactly, that yellow car was sucking in hot air right off the hot metal intake manifold.

[@eachday9538]

Would have liked to see you swap back to stock on the dyno after that last run to double check.

[@EthanLeitch]

It'd be awesome to see: The maximum power you can gain with a dyno tune using the STOCK intake VS. The max with a dyno tune using an AFTERMARKET intake. I feel like this could be the scenario that they're actually useful

[@skid544]

Was about to comment this.

[@jaky3]

You can't tune stock cars that easily, not without some ecu.

[@garren3498]

@@jaky3 its really easy actually, you rarely need an aftermarket ecu

[@richbrown5852]

On some of the Peugeot models, to safely tune them without adding the expense of an aftermarket ecu, you got to remove and open up the ecu and solder some wires, download the info on the ecu, adjust some tables, then flash it back, reinstall etc...its a bit of a mission especially on a petrol engine where gains would be minimal and Rodney lurks waiting for overzealous tuning

[@mbsnyderc]

@@garren3498 depends on what car.

[@georgeoliver8300]

On the Peugeot the taller heavier wheels would have definitely reduced power

[@vinnyvtec8722]

Im in the uk and i used to like induction filters for the noise when i was younger, but since i've got a bit older and a bit smarter, now i keep the standard air box, chop any fins inside the box to make it as smooth as possible, replace the ribbed intake hose with a smooth one and replace the panel filter with a better flowing filter, my preference is a company called 'green' and you keep the same set up as your car manufacturer spend ££££'s researching and developing, increase the sound a bit, help the flow of air a little bit and its really cheap to do. I also noticed in my time that on smaller not very powerful engines, you lose low down torque by using an open/induction filter compared to a standard airbox, so you make your already slow accelerating car even slower off the mark.

[@nigelfox6683]

Would be interesting to see a k&n panel filter in the stock air box… maybe look at cold air feeding to the air box with some added intake / porting with the ducting

[@GoonSmith007]

Love to see Marty's original intake with the new exhaust, see if the $50 exhaust made a diff.

[@GamingByBaka]

I actually think it martys case his exhaust was too big, and the intake was less of the issue, where Moog it was the opposite.

[@winha1435]

Do they run whit same tires as before, low power car like that even tire mass chances dyno results.

[@arekb5951]

@@winha1435 yeah, one of many drawbacks of measuring power at the wheels only, you're never sure what caused the power drop, is it the engine or something else.

[@sniperotto]

I'm pretty confident the exhaust is what kills the power, 76mm exhaust is way too big for that engine and power level. Engines don't like backpressure but you need to balance flow and velocity, too much flow will hurt velocity

[@NineS5]

stock peugeots intake are quite good from factory. most people who modify peugeots suggest to keep them on

[@richardfld]

Be interesting to see the hp with the stock airbox back on with the performance exhaust

[@adjrasta9365]

Exactly, the swift wldnt hve taken that long to change bck on the same day & same dyno bck to bck test for a definite answer....opportunity missed imo

[@JD_82]

Yes they should test this

[@HendrickT-bi4iw]

I second that. Would be very interesting to see. I didn't expect them to make hp but was surprised to see that much of a drop in the case of the swift

[@user-ni7gk5tg5j]

So many variables missed as well, like we dont know if outside temp changed.

[@suazzz3070]

The problem is you have to put the k&n sticker on the car ,lol

[@damonearl6273]

Mainline dyno’s have definitely thrown us as a part manufacturer for a loop in the past. They’re very strict in some ways, and definitely could be the problem. It would have been useful to do the test in the same day. But given the location of that filter and the way a dyno operates I suspect the intake air temp has significantly changed, which can not only result in natural performance loss but also can trigger the calibration to significantly lower power in order to avoid knock.

[@PigeonLaughter01]

I really enjoy all the tests you guys have done over the years. This kind of info really helps diy and enthusiasts.

[@adamtomecek6704]

Dropping pod filter without any shielding on top of the exhaust manifold in the back of the engine bay. I can only imagine how crazy the intake air temperature was.

[@mitchellpatterson3323]

I thought this too, but that's actually the intake manifold. The exhaust is located on the front, you can see the heat shield in the overhead shot. Now, that said. I still wouldn't want to be drawing my air from next to the engine bay.

[@adamtomecek6704]

@@mitchellpatterson3323 oh yeah. Embarrassing overlook by me

[@mitchellpatterson3323]

@@adamtomecek6704 Don't be hard on yourself, I thought the same thing initially

[@IoSkyBoyoI]

It's still feels like a barmy place to put it. Made me double take when I saw it.

[@mitchellpatterson3323]

@@IoSkyBoyoI 100%, it's still drawing hot air from the top of the motor rather than cold air from the side like the standard intake.

[@ShiftMotoring]

The OEM intakes are usually pretty sophisticated tuned-length affairs, as well as heat shielded. If you try swapping the filter with a panel filter, you will might see a small change if there is a significant enough restriction in the filter (there probably isn't). The only real reason to do a pod filter is if you're modifying enough of your engine bay that it is the only practical option.

[@SirDaffyD]

So true. I swapped out the stock panel filter with a K&N panel filter in my BA Falcon back in the day, and got a notable gain in power. I then removed the intake snorkel part leading to the airbox, which gave a bigger opening into the airbox to get more air, and got more gains. The snorkel is a restrictive part. I've removed this snorkel to the airbox on numerous cars, and always made gains. There's something to be said about the research gone into the inlet from the airbox to the motor, and removing it can have a negative effect. Every time I've removed the snorkel only, not only have I gained some power, I've also gained intake noise. I do believe they make these snorkels like this to reduce noise emissions, with the downside of robbing some power. My 3 cents.

[@marcbirchley2418]

​@SirDaffyD correct... I once owned a 1.4 8v Fiat Punto, swapped the airbox snorkel from its hot intake that went to a blanked off section of the grille that was covered in painted cardboard (Yes, cardboard) Took that out, replaced the snorkel with a cold feed tube, cut a section in the grille so it pointed directly into a windpath... Very noticeable difference... minor but noticeable.

[@iguana51]

​@@SirDaffyD unless you're crossing rivers regularly they're just power thieves really

[@noneyabizz8337]

​@@SirDaffyDof course, some cars have a large portion of plastic in the fender that the intake is attached to. It's an enclosure of a bunch of baffles and angles that the air has to pass through, quiets things down. Stock intakes, even without that are definitely designed to cut down on engine noises.

[@wijibo6772]

You can only do so many mods before you get into needing tuning, and I feel you guys are right there at the door.

[@oldred9122]

I'm a mechanical engineer who worked (past tense) in the automotive aftermarket, so I might have some insight. Here's how it probably went. A salesman or reseller somewhere told the K&N engineering team that they needed an intake kit for the Swift to fill out the K&N sales catalog, but the engineering team were probably given little (or no) access to an actual Suzuki Swift for testing, so they gave it a good guess, created a kit using parts that K&N already had, and were forced to move on to the next project.

[@jacobrzeszewski6527]

That's my guess too. Research and development requires actual research to be done.

[@kristisrb]

As someone working in RnD, this is pretty accurate on how most of the engineering is done in big companies. Not for all products but certainly Swift's kit is an example. Add on top of that misunderstood engineering notes that get overpromised by the marketing and sales. Another case might be that they know it loses power but that wouldn't make sense for a product so they will look for a corner case or additional modifications to justify this filter.

[@ofthenearfuture]

It's such a complex issue, but over the years (and thanks to your videos as well!), I think it just comes down to these small cc NA engines being engineered to be incredibly efficient by the manufacturer. Decreased restriction/pressure/velocity in the intake and exhaust probably only benefits FI setups. And in modern vehicles most likely only with tuning in any case.

[@sebsshenanigans]

Here to see if the old PVC intake I did back in the day on my first car was killing it or not Edit- after watching, glad we only spent $10 instead of $350 for that car 😂😂

[@yunusertas]

dont forget 1.2k exhaust :D

[@sebsshenanigans]

@@yunusertas done that once, probably just going to stick to learning and making my own 😅😅

[@PLAYERSLAYER_22]

it only makes less power if the car is otherwise stock. if you tune the ecu by sending it to a company itll fix the top end of the rpm band from running lean and losing power. the ecu can only tolerate 5-10% extra air than it expects before running out of injector pressure to keep up with the high intake volume.

[@god_of_negativity9297]

Hey, i've been watching your guy's channel since i was a kid, i'm 24 now and still enjoy watching everything you do here, thank you so much, i appreciate you Marty and Moog very much

[@Scrubsgetrekt]

Not living up to your name bro, you can't just do that; go on the internet and lie.

[@god_of_negativity9297]

@@Scrubsgetrekt 😂😂

[@Bobberboyz_Official]

Bro puts the intake at the back of the engine and wonders why he lost power 😂😂

[@MotoringBoxTV]

One thing I'd be interested to know - what's the surface area of the pod filter, compared to the stock panel filter. Like if you were to cut the pod open and lay the filter element flat, I wonder if it would have a smaller or greater surface area of filtration? If that's not the reason, surely the terrible mounting location would have a lot to do with the losses. Pretty devastating result considering how much it cost!

[@willleslie2745]

The pod will have much more of course.

[@SereneSpeed]

That 100hp motor is not nearly restricted by that size cone.

[@AmboscottUK]

I am thinking it is more about sucking in hot air with the pod. Or could be a tuned length thing.

[@MrMarty77]

That would be incredibly hard to compare. The filter medium is just so different that it wouldn't really matter. A better comparison would probably be how much effort it takes to pull air in through it, and how much particle matter is in the air post filtration. But you'd need a proper lab to be able to test that. Perhaps it would be an interesting topic for an LTT video?

[@chrisyboy219]

That KN filter is an expensive piece of shit.

[@ChriAsh]

Sometimes it hardly feels like I used to watch you guys doing budget mods in a driveway so long ago

[@emmanuelgoldstein3682]

right in the feels

[@WyFoster]

Dude, tell me about it. I think I'm old

[@xXxsinistaxXx]

i'd love for them to mod a fan or someone having a rough times nugget their driveway to get that feeling again

[@reganhams3431]

Marty literally made his intake out of pvc 😂

[@nicholascrow8133]

These were the guys that made a urine based patina!

[@vinalspin1000]

A K&N drop in panel filter with the stock intake system will give you the small gains you're looking for, those full induction kits very rarely work. Over the years I've only ever managed to get an increase in power on 2 cars, one was a 2.0L MX5 and the other was a Lancia Delta, both N/A cars, all the rest sounded fantastic but ultimately caused a drop in horses.

[@Thomasd10102]

Your videos helping me get through a tough time at the moment so thank you for that❤️

[@j.r.m.yr.s.l.e5293]

I reckon it was the wheel and tire change that made the horsepower loss more rolling resistance.

[@Silldro]

I agree. Seems reasonable that the cup2 tires has higher rolling resistance than the stock tires. I dont think that the exhausts decrease power, the air filters may but it should be 1-2kW

[@krcari111]

The Peugeot also has bigger and heavier wheels, ofcourse it lost power...

[@llleolllolll]

But wouldnt that be counter calculated when the resistance is measured? Lower wheel hp yes, but at the crank that shouldnt have an effect imho

[@Moosehung]

I was thinking the same, would love to see back to back dyno runs with the two different wheelsets on each car.

[@dattoDJ]

Yes! Plus I'm pretty sure the dyno works by knowing torque and doing maths to give a power figure. Bigger wheels = less torque = less power number on dyno, even if engine horsepower increased.

[@HalfdeadRider]

The issue for Moog is probably in part the location of the induction kit, you would do better to replace the stock filter with a K&N panel filter in the stock airbox. Also as you mentioned tuning, that is what is needed to take full advantage of a full exhaust system and an intake change, a stock ECU will try it's best to make adjustments to run the engine in pre determined values.

[@SirDaffyD]

I agree with replacing just the stock panel filter with a K&N panel filter. I've just this mod to a few intakes, and always made gains. So much R&D goes into designing the intake, that totally replacing it will almost always have a negative effect, unless the ecu is retuned to that intake. Saying that, I've removed the snorkel on the intake side of many airboxes, and made gains due to where the snorkel enters the airbox being bigger than the hole where the air enters the snorkel. I've always gained more intake noise doing this also.

[@vertsabre7543]

Thank you for the science experiment ! Didn't expect a power loss on both cars ,definitely is educational . cant wait to the next video .

[@colinsullivan7330]

Usually when you put a cold air intake in you have to go in the ecu and reset fuel trims and throttle possition relearn so it can adjust itself over a pretty long period of driving.

[@Underpantsniper]

When it comes to small changes like a air filter change they need to be tested on a engine Dynomometer in a controlled environment. Chassis dynos just aren't precise enough due to temp, humidity, dew point and barometric pressure, tire pressure, transmission temperature ect ect which effects every parameter of a Dyno run.

[@barzaization]

I'd be pointing towards the rolling resistance of the new sticky tyres

[@MrMarty77]

That might actually be a pretty valid point. Would be interesting to test that with a flir camera pointed at the tyre during a dyno run.

[@911Keaton]

Deffinetely has an effect. I forget the weight difference from stock but heavier tires will reduce appearent power as well since tyno runs are a dynamic test.

[@RealLifeJunkie]

Had same results. I'm running my polo on the Nordschleife. Went back to stock Filter and shorter intake length. Got best results with stock. Even with tuning on Dyno

[@raiderznation]

The k&n intake for my car came with a heat shield to block excess engine heat. I get around 4-5 more whp after install however if the car is idling for an extended period the air temperature becomes so high that all the gained power from the intake is lost until it cools back down. The placement of the intake is extremely important as placing it closer to hot engine components like exhaust headers can make you lose power even with proper airflow.

[@Burwhale1]

Loving "Cash vs Trash" . Go team PurgeBro.

[@jeeves_uk]

PeugBro supremacy 👌

[@JoelDunstan]

Peugbros unite!

[@lukebarnes8097]

Here for the underdog story

[@JoelDunstan]

@@lukebarnes8097 peugeot arent the underdog. Just different class of car really. Look at suzukis WRC non existent win compared to the astounding 13 championships PSA have won

[@jeeves_uk]

@@JoelDunstan 206 WRC 🐐

[@John_Franco]

K&N drop in air filter for the swift is a much better option. You still maintain the cold air intake with better air flow than the pod inhaling hot air with its positioning.

[@willleslie2745]

They DONT WORK. They only sound cool.

[@reecedrury4145]

I said the 'trash' option for marty should have been a panel filter

[@jcthe2nd]

need to dyno for the facts

[@Clone895]

You mean the paper filter itself? That doesn't make it a "cold air intake." K&N is typically pretty mid. They just have name recognition and a cool logo so people just assume they're good. An example of a quality CAI would be the Rotofab intakes for the 6th gen Camaro

[@H.samx1]

Tuning ECU will fix the problem. Maybe!!!

[@davidschmidt9291]

Had this same kind of thing happen to a buddy's lancer years ago, put the filter right on the mass air. It made great intake noises but tanked his low end and full economy. Then added a foot or two (still made intake noises) and the car was preforming much better.

[@GreaseRenegade]

When Moog took the stock intake off, he removed the snorkel that pulls air from the front of the car, and by putting the air filter where he did, he is now pulling air from the engine bay. Simply put, he went from cooler air, to pulling hot air which is thinner...so basically now you are pulling less air than you were with the stock setup. Pod filters are designed to allow for more air flow through them, but if the air is is thinner where the filter is, it will cause a decrease in power. Ways to eliminate the loss in power would be to either have a box that closes the filter off from the engine air (with some opening to allow fresh air in) or to run a longer air tube with the filter on the end of it, placing the filter near the front/bottom of the car where the air will be colder and therefor denser.

[@bassonabudget2k899]

maybe try the k&n drop in filter? could be better results?

[@lmc7233]

The K&N is right at the back pulling straight hot air, The stock intake pulls cold air that's the difference

[@shanesgettinghandy]

Why did I have to dig so far down the list to find this comment? THIS. How is this not what everyone is talking about? I have chuckled at MANY a "hot air intake" mod I've seen installed on people's cars. DON'T DO IT.

[@troyam6607]

he also added the cold air intake so it shouldn't be sucking the hot in

[@lmc7233]

@@shanesgettinghandy your spot on i thought it would be the top comment but apparently people don't know so i had to let them know

[@circuscannon6381]

​@@troyam6607Not really, that thing is just basically just a dryer hose that is supposed to bring air from the front, but the system isn't sealed so the pod filter is still just pulling in hot engine compartment air. Complete waste of money

[@JeffJK000]

This is actually really good video. It just shows that not everything goes your way. Very keen to see detailed explanation to why soo much power was lost.

[@adammassie9587]

Position of the MAF is key. OE airbox ensures best reading of airflow across the sensor. Look at the bellmouths used on ITB setups, a good aftermarket intake has similar design incorporated to keep the MAF reading accurately.

[@JamalPennant]

The air filter was right next to the hot exhaust. The original air box protected the filter from drawing in the hot air. If you used part of the old air box to protect it from the warm air I'm sure you will see the the numbers back to stock or a tiny bit higher.

[@cjwrench07]

That basically defeats the purpose of the video. The down pipe was just for the noise, and the K&N setup was supposedly “a drop-in kit.”

[@JamalPennant]

@@cjwrench07 that's fair point. As per fitted instructions it's definitely not worth paying extra, for this set up to draw in hot air lol.

[@GorillazMach1]

I agree on the filter thats too close on exhaust.

[@Kris_M]

@@GorillazMach1 How would you move it further away from the exhaust? They are already on opposite sides of the engine.

[@IoSkyBoyoI]

Dont quote me. But I think the exhuast side is close to the bumper. So the intake is above the intake side. Still a barmy place for an pod filter.

[@Alexsandrosla]

Kind of a shame Marty didn't try out the intake hack from the last intake video.

[@pokinacha]

This! Keep airbox, remove resonator and all that spaghetti piping, remove fog light and duct the intake to the fog light hole. Cheap and works

[@khalebcanton]

Good quality pod filters are fantastic when used in the correct application. Turbo setups with a constant stream of fresh air and closed intake systems that utilise a pod filter will yield good results.

[@remote_will5490]

A dyno works by measuring the power output at the rollers, by changing wheel sizes you changed the gear ratio to the rollers skewing the results. Swapping back to the stock wheel/tyre setup should give you more comparable power numbers to the first dyno results.

[@Dan_Divebomb]

Not if you do it according to the specs. The outside diameter stays the same when you change wheels. If you go from 16 to 17" wheels for instance, the sidewall becomes lower. When a rim manufacturer produces a rim they'll write in the datasheet which rubber to use for your specific car.

[@n3er0o]

I think you should have measured them with the stock exhaust and intake in the same conditions (i.e. same day, same (probably higher roll resistance + weight) wheel/tire combo). Also I believe modern cars usually take some time to 'cope' with the changed hardware. I believe these mods overall should have resulted in no power change at all under the right conditions.

[@craigmonty]

Yeah this is left so unresolved not testing with the stock A/F back to back - I guess there is logistics involved in it not being an easy thing to swap in and out that makes that unfeasible.

[@n3er0o]

@@craigmonty I'd think it's quite easy in the Swift at least (except for the exhaust). The Peugeot seems a little more challenging, but this could be done in between running the other car.

[@MrUppmas]

Not just 'some', espécially if it's a bit old. It took my sw20 mr2 a month to fully adjust to changed parts.

[@ItsNotBushWeek]

Moogs "cashed up" character arch is nearing its final form! The stock air box w/ a drop-in high flow filter + ECU tune to utilitise the mods 👌

[@WRXMAN-ms2mm]

Rolling resistance makes a difference. This should have been factored in by changing back to the tires used on the first dyno test. After that air temperature could also factor. With the minor incremental claims of increased power these mods advertise, these two fundamental conditions make a difference, from all I have read. Tuning as well could be a factor even though a CEL doesn’t appear. Fun video regardless.

[@nickszalardi3652]

How the car is strapped on to the Dyno also makes a difference. For this kind of testing they should have been using a hub Dyno

[@davidcisme1615]

I fitted a Growler intake with pod filter on my last car and they stated the benefits would not be noticed straight away as the ECU needed to learn as it was seeing the new airflow settings coming through. I noticed the induction noise straight away obviously but after about a week of regular stop start driving, I noticed the car was more responsive when accelerating.

[@STAG162]

6:03 you use a panel filter instead. this preserves the "tuned" intake path and increases air flow from the filter as well.

[@ewingfox6459]

Insomnia FTW!!

[@WyFoster]

Hell yeah! LETS GOOO

[@crmercer6407]

On my swift, I angled the knN filter over the gearbox. I still binned it for a panel filter in the stock box, but that was because i didn't like the noise .

[@dennisclay9283]

I’m just a shade tree mechanic but I’ve always heard that pod filters like fart mufflers may look sporty but do little if any performance boost. It just sounds like you’re going faster. Fun series.🖖

[@DrNorbet]

I think the dyno is the variable and maybe even the day itself. If you want to do a test with the only variable being the filters; I think it would show more realistic resuts if you dyno with stock filters, and then dyno with aftermarket ones, all in the same day on the same dyno.

[@FPV_sk8]

Loving this series boys! Can't understand how you both lost similar power. This is super informative!

[@roxieloot]

Swift lost like %8 more than the 206. The pug was marginally worse. Swftt noticeable loss. Just shows, spending thousands thousands is not always the answer!

[@not12listen]

For the Peugeot the expanded exhaust piping will have the impact of lowering exhaust velocity, this directly impacts the scavenging effect, which directly impacts the air fuel ratio (aka. power). Going from a 2.0 inch pipe to a 2.25 inch pipe would have minimal negative effects in the lower RPM range while giving a bit more breathing room for higher RPMs. Going from 2.0 inch to 3.0 inch (without large displacement, a turbo or supercharger) will result in a loss of power. Dale covered the basics of this on MCM2 2 weeks ago. As per the Peugeot intake, I would wrap every joint/connection with tape, just to make sure there are no leaks, as any air leaks past the air metering device will have a negative impact on the air fuel ratio. The ECU is expecting a certain amount of metered air, but the reading via the oxygen sensor is different (ie. there is more air present than expected), which the ECU will react by changing the amount of fuel being delivered - thereby taking the engine outside of it's tune operating zone. More air and more fuel is only good if it can be leveraged (ie. it is tuned for that volume), otherwise it is wasted. Along with that, the Peugeot (being much older and likely not maintained) should get new spark plugs at a minimum. If the existing ones are high on the time usage, they will also be out of their efficiency range. Per the Swift intake... The filter element placement is really poor. If possible, I would rotate it to be away being directly over the engine, then try to get/make some ducting that would channel air from the front of the vehicle directly to the air filter. That would help to mitigate the negative impacts that intake clearly has.

[@Zoid2025]

Really like this episode as I have been down this path with my old Ignis Sport. Lost power with a K&N pod filter. Put back the stock box with a drop in K&N filter and gained back the power. Dont understand the engineering behind this, but I just named it Suzuki sorcery and moved on.

[@thebadman0035]

you got to use the same dyno for comparison, or do back to back runs on the same dyno making the mods. Otherwise its not the same comparison. The amount of settings of the dyno that could change the calculated output just make it too hard to compare reasonably especially if the gains/losses are so small.

[@mathewgehman6279]

Came here to ask if they were using the same dyno as the base runs. If not, there is no way to do it accurately, and it's almost a waste of time.

[@jo300hn]

Exactly, not only that, it's the Dyno calibration that could be say 2% different, test needed to be performed on same dyno to give a definitive comparison, though it's obvious the banana machine has lost some power, the silver french shitbox probably could be making the same power as it did before

[@Kenny_P_abz]

Looked back at the previous video and it is the same dyne.

[@carriedhome]

Did the ECUs get a full reset and enough miles to approve whatever emission controls which may be in place? California resident so ECUS and emissions is on the mind..

[@InJayzBrain]

I've ran into the same thing with most all aftermarket "cold air intakes". However I have felt improvement over a K&N stock filter replacement over a paper element and with 200k on that K&N cleaning it whenever it needs and MAF sensor cleaner handy it's the only way I roll.

[@Mrmassikar]

Pod filters work if correctly placed & benefit more from direct cool intake piping and if you can heat shielding / sealing from the rest of the engine bay so cold air only

[@grahamford9646]

A drop in K&n filter with factory intakes are the go 💯👌

[@ChocolateFrog]

Still crap filtration. Just fit a paper filter and change it regularly.

[@kostasnls4566]

​@@ChocolateFrogor clean up your filter more regularly, same stuff really

[@andrewsbbq]

K&N is shit filtration

[@footballplaya3k271]

​@@kostasnls4566 K&N filters let loads more contaminants through than paper filters. Project Farm did a great video on it.

[@garagecedric]

I dynoed one on my car and it lost power, and worse filtration

[@williamstewart3469]

Someone in the comments called it, a comparison of acceleration times on a track before and after the mods would be interesting to see, cause that's what it's all about. A engine dynamometer is an awesome tuning tool, but it's the on tarmac results that will count here.

[@Lothyde]

Agreed 100%, I don't trust these Dyno results

[@jakegackle7398]

I usually add K&N drop-in filters to my cars. You get a bit of intake noise and still keep your air pipe efficiency. Kind-of a win/win. Just don't over oil it and they work just fine, in my experience.

[@michaelwolejszo6445]

A lot of cars made now have very well engineered intake systems. For my car it got the most hp gain by just swapping out the factory filter with an aftermarket one. No change in any tubing just stock box.

[@thatoldshitbox]

Really loving this build series

[@lcddan]

Fun series :) As others have already mentioned, I believe its the heavier wheel/tire combo that caused at least some of the loss. Maybe next time bring 2 of the old wheels/tires and try installing those (on the front of course) to see if it would have made a difference.

[@Nabeelco]

No. It's the pod filter. This isn't the first time they've tested this, and this is also well known amongst the educated people in the car community. Pod filters, and K&N filters suck, and are aimed at suckers who don't know better.

[@badbatch974]

Moog’s wheels were basically the same weight as the stocks. They showed it being weighed on the episode.

[@mihaiserbanescu8676]

The original box was enclosed and had a shape that would make air flow in a way the engine likes better. Also, the enclosure protects from the heat of the engine/exhaust. High temperature air makes the combustion worse resulting in lower hp. If you put that pod filter and somehow isolate the rest of the intake, it's probably still not gonna flow as good as the original intake but probably won't lose that much power.

[@MiniH0p]

2:55 buddy is cleaning the tempreature sensor lmao.

[@wickensvideography3577]

Would be interested to see the test done again on the same dyno you first done to see if it’s the difference in the dyno itself

[@Edu_RJR]

you guys should've done 0-60 tests on track before and after mods, just to be sure there isn't anything finnicky about that dyno calibration (specially since it's been weeks since the first test)

[@samuelgarrod8327]

I would think it would introduce too many variables but not a bad idea.

[@SloppyMechanics]

filter right on most maf's makes them swirl instead of straight sections metering right, also stock box was getting air from a different place not back of engine bay, just some stuff to try

[@lukaz861]

For my Swift Sport the best air intake was Simota with "carbon" cover. It increased the stock power by 5hp. No oil on it so it doesn't foul the maf reading as well and grabs the air from directly in front of the cars bonnet (you can cut the bonnets gasket for better airflow in that part).

[@lukaz861]

@Absolute Mad Chad autocorrection hahah. It was meant to say Simota of course. And it's not a lie, I did 4 Dyno tests. Stock was 126bhp, air filter 131bhp, with full custom exhaust 136bhp and remap brought it to 142bhp.

[@delcowizzid]

The loss with the filter was most likely the way the filter changed the flow over the maf sensor making the tune off

[@ForceFed]

Literally came here to say this. The ECU needs to be tuned for the intake and exhaust. The factory ECU fuel and ignition tables are not tuned or adaptive enough to take advantage of the extra air flow.

[@cavemanvi]

It’s this. Source: I’ve been tuning cars for weeks now.

[@ForceFed]

@@24k__J K&N in this situation are incorrect, as the video pointed out. That's because each ECU fuel and ignition tables are defined differently. So while there may be an overwhelming majority of stock ECU mappings for various cars that can take advantage of the K&N intake, there are other vehicles whose ECU mappings can not. Moral of the story here is the manufacturers claims are not always correct. Remember, they are a business looking to make money. They make a decent product. In the case of the Suzuki, it's ECU was mapped for airflow from the factory airbox. Not an aftermarket intake. Remapping the ECU will allow the car to take advantage of the K&N. Which was my original point.

[@SloppyMechanics]

i just posted this also lol why doesnt tuner know that

[@phuzz00]

That K&N kit was made specifically for the Swift Sport, so if the MAF wasn't positioned correctly, that's on K&N for not testing it.

[@Cyber_Nomad01]

Cold air is the key! Pod filters are great as long as they are put in a place that they can suck cold air.

[@MiGG_Aus]

pod fiilters are trash.

[@callumriddell9792]

K&N drop in filter is the go to for me…tiny bit more sound and lots more air😍

[@ezrollergbg]

Unless you go with a pretty large pod filter the filter area is usually smaller in a pod filter than the stock air box. It is usually better to use a performance oriented filter in the air box instead until you go to a mors optimized plenum design or separate throttle bodies. And to really make use of a better flowing intake you usually need to up the cam/cams and an updated tune and much more aggressive ignition. A custom map session on the dyno would probably be my first choice, then cam, exhaust & catalytic converter with a tune.

[@tyhub7455]

You gotta get it tuned to match the new exhuast and intake. Mods add power but sometimes need a tune to bring them to their full potential. It throws the air fuel mix off

[@Nebbia_affaraccimiei]

tune in next week for more clueless comments

[@reyedengoh552]

U have to tune it to fully maximise the power. Just bolting these on will cause power loss

[@AWOL_ODST]

Exactly. Bolt ons only give power gains if the ECU knows what it’s working with.

[@fohatadri]

K&N doesn't specify if tune is needed or not.

[@AWOL_ODST]

@@fohatadri U can bolt on a K&N air filter no problems. It will change the induction sound making you think it is better but there will be no objective improvements as the ECU doesnt know what to do with the increased airflow. If anything it panics and cuts power for safety as it gets confused. U can put it on and it wont do any harm but u will not get a true performance benefit until u turn your car. Most people add filter, then exhaust, headers etc. then when u have them all bolted on that you are going to get then u go for a tune to keep costs down (tune after each bolt on is too costly). Then u will get the combined benefits of all the breathing mods.

[@andronikosandronikou9587]

im not a mechanical engineer either but you have put the swift air filter near the engine and it consume the heat, better to be down with some stainless steel pipes or the stock filter with a big air scoop. +bonus a sprint booster will be a good idea. If you want extra power you have to remove or uptade catalytic converter and headers and then all together will work and you will see some results.

[@WickedTRX]

The experience I have with pod filter em MAF is in my diesel commuter, a pod filter right before the sensor doesn’t work all that great, the sensor registers less flow, in my case ECU debits less fuel.

[@CTRLerSupport]

2 questions: Were all runs on the same dyno? And, how does the weather/ temperature compare from original to current testing?

[@fermillo65]

Given that the 206 gave similar results I think we can rule out the Dyno and conditions as a reason for the swift decrease in power

[@crisnmaryfam7344]

@@fermillo65 swift had different wheels and tires this time. Conditions were not quite the same. Not an apples to apples giggy.

[@carlwarnett2054]

Would have liked to see a run with pod filter vs stock housing and filter vs stock housing and performance flat panel filter.

[@bumbdunny349]

I had the exact same thing happen to me. I just restored a 1983 VT500C Honda Shadow, yes I know it's a motorcycle, but it's an internal combustion engine just the same. The previous owner had removed the air box and put in pod filters, after hours of research I found out that I had to change my carb jets up two sizes to account for the extra air flow. The same is happening with both of your cars. You changed the filters but you didn't change the tune on the engine. Unless you can reprogram the computer to make up for the increased air flow you will never make more power. A drop in K&N filter in the stock air box may help a bit, but again, unless you retune the engine you will see very little gains going that route.

[@darktdi85]

Factory intake system with k&n inlet is the better option, but to remap after the changes is the key 😉

[@shayispunkish]

Is the tyre size different between dyno runs? That will definitely effect power reading on the dyno.

[@jackrichards1863]

Yeah it is. That's why the results are irrelevant and also there was no tuning carried out which is essential to get the gains from mods.

[@shayispunkish]

@@jackrichards1863 it's not essential, of the tune was a bit fat stock (which they pretty much all tend to be), opening up intake and exhaust can improve volumetric efficiency and give some small gains. Bigger gains can be achieved with tuning.

[@jackrichards1863]

@@shayispunkish pretty much. Still those efficiencies are pretty clean so they should be able to capitalize on the change. Very hard to beat a factory assembly now I'm the performer cars like the Sport or Peugot, or the hot Golf is hard to improve on those hot models

[@GrizzlyGarage]

You guys should get the cars tuned with the mods, that way you can maximize those mods cause like what was said the stock tune prob doesn’t compensate

[@SlowSTEN]

Honestly super surprised they haven't.

[@GrizzlyGarage]

@@SlowSTEN right? Usually they slap a haltech on it by now

[@OPTIMUS6LTR]

even just resetting ecm may have helped, worth a try

[@oDilby]

@@GrizzlyGarage Because they wanna race them with just adding mods, no tune or anything like that I believe don’t quote me

[@GrizzlyGarage]

@@oDilby yeah I’m pretty sure you’re right

[@grapsorz]

i know a pod filter close to the MAF the "bad air" sometimes mess with the sensor. so a tube and a grid might work. here we some times replace the injector's and adjust it with a bigger MAF sensor housing. that is if the car can use some extra fuel etc. and then the throttleboddy is upgraded if that is a restriction.

[@joshehman3571]

Amazing boys

[@martinmees878]

It would be interesting to test a K&N filter inside the standard airbox.

[@Nabeelco]

K&N filters are shit. They have fewer pleats, which means less airflow, their material is thinner, and instead they soak them in oil to try to compensate for the shitty filter. Want a good filter? Pick something with a lot of pleats, and thick material. The pleats will let it flow better, the thicker material will filter more.

[@TheStriker0525]

​@@Nabeelco was that something you read on a forum?

[@Nabeelco]

@@TheStriker0525 No, it's something automotive engineers, mechanics and scientists have said.

[@madmax9009]

@@Nabeelco And oil contaminate the MAF

[@scottbutts6703]

I wonder if the tires could affect the dyno numbers a bit?

[@williwonti]

That's why it's silly to test after changing so many variables

[@TotalDbag24]

It's the same thing with my gen Civic Si. The stock intake is better than any aftermarket intake of the same size. The only time an intake is worth it is if it uses bigger pipe, and it's tuned.

[@Doogleraia]

A lot of cars will not have self-learning ECU's, and when you just throw more air at them, they'll struggle with matching up the AFR and start to attempt compensating for reading what it perceives as wrong values and end up cutting power because it thinks it's too lean etc. Some cars come with self-learning ones that you just need to leave the battery off of for an hour or so, then teach it the injector profiles etc through driving it again after the reset and have a lot of sudden stops from choking out the engine as it's learning. Evo 7 to 9 ecu's are known to be such ECU's that you can teach and also tune by connecting to, but for many folks it's better to pick the latter and actually head to a proper tuning shop to get dyno-run tuning done.