Testing the LoudmouthMX Intake
Chris
- February 20 2009
- 11,285 views
- 89 comments
The guys from LoudmouthMX came out west last week to do some testing with the TWMX crew at Cahuilla Creek MX Park. For this test, they put their focus on the 2009 Suzuki RM-Z450. Check it out.
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February 20th, 2009 at 9:17 pm
Believe the hiype! (sp?) I have one on my CRF and it RIPS
February 20th, 2009 at 9:55 pm
loudmouthhhh, people go get thattt
February 20th, 2009 at 10:01 pm
Brendan Lutes is such a salesman……… “yeah I feel the performance” LMAO!!!!!
February 20th, 2009 at 10:53 pm
my brother’s gotta LOUDMOUTH!
February 20th, 2009 at 11:22 pm
I’ve been wayting for the loudmouth system for my CRF 450r 09 for since November and they haven’t finish the design or some like that
I call them and nothing yeat so I gave up and bought a twin air power flow kit tha one that comes with aluminum cage and also eliminate the back fire screen
sorry loudslow design we’re in a fast sport
February 20th, 2009 at 11:30 pm
$150 for a circular piece of alluminum and another piece of foam?
February 20th, 2009 at 11:52 pm
I just love the comment section……..
February 20th, 2009 at 11:53 pm
who needs dat thing ? i get way more hores powers when i just tooked off my whole air filter. thers no use four the filter on a durtbike andyways. wast uf money
February 20th, 2009 at 11:59 pm
They’re actually working on a design for that bike. It should be done soon. Since it’s a new company and all, it takes a little bit to create the design of products for an all-new bike… But then again, I’m just being a good salesman now, aren’t I?
February 20th, 2009 at 11:59 pm
NO ONE, needs more power on a 450 motocross bike.
February 21st, 2009 at 12:00 am
I took 150 one dollar bills to the strip club instead. Much better use of $150. Aww yeah.
February 21st, 2009 at 12:41 am
Thats weird I used it for halloween as a smurf hat
February 21st, 2009 at 2:16 am
Well, as an engineer and motocrosser(oxymoron, perhaps) I don’t see the benefit in an intake system that offers negligible tangible gains without proven scientific principals backing any such improvements. Where’s the reduction in turbulent flow? Where does the performance come from? Every phenomenon has an explanation. In this case, I don’t see any quantifiable gains by way of a velocity stack, low deltaP filter or aerofoil to explain a seat of the pants power increase noted by the test rider. In fact, the LOUDMOUTH system seems to mate up to the same bore as the original bell mouth of the carb/ TB as the OEM unit with the exception of an over extended straight flange. Without changing the bore, there is only one other way to pass more air through the same area, via a pressure change. Not likely without a great deal of intake tract manipulation. The possible pros I do see with this intake would be the increase in measurable intake tract length, increasing the low end. Downside being the new locality of possible airborne contaminate and an unproven, small surface area filter which will undoubtedly introduce some deltaP at high RPM’s. Not to mention the large drain on your bank account. I do apologise for the rant. However, I do think that 1.5 large would perhaps be better spent elsewhere for the average MXer trying to survive this economy. Maybe by filling the tank to commute the exacerbated distances between hospitable communities and any decent MX tracks.
February 21st, 2009 at 8:14 am
Will it work on a 2 stroke ? Or this is maybe obly a 4 stroke device?
February 21st, 2009 at 8:41 am
Get a V force, they got the two stroke intake market covered
February 21st, 2009 at 9:16 am
If you have an 08 CRF250R I really wouldn’t buy this for your bike. I mean I bought it and all I got was a little bit more torque and it seemed to pull a little bit harder in corners. And thats it. Hahaha Brendan you call that muddy??
February 21st, 2009 at 9:17 am
absolute and total b s
February 21st, 2009 at 9:32 am
I’m a California kid, so that was muddy to me haha. You really don’t see the worst parts of the track that day, though. There were guys getting stuck in mud holes in the back sections of the track that aren’t on video.
February 21st, 2009 at 9:43 am
Great vid, i like everything that is cheap and adds more power to your bike… Im thinking about getting these to my 08 crf250..
Hey brendan, did you feel it the most in the corners? I will guess so..
February 21st, 2009 at 9:55 am
Thoes are big rocks in the background. You can hear the diference in the bike. Sounds like when you put a cold air intake on your car. NASTY!!!
February 21st, 2009 at 10:52 am
If it makes a difference, you will need to rejet.
If it doesn’t you won’t. (efi may be excluded from comment)
February 21st, 2009 at 11:08 am
honestly i belive it works,,, probaly make a big differnt in throttle respons and what not.
i want 1 for my rmz250
lower the price 75$ and you’ll sell so much more.
i would NEVER spend 150 on a peice of foam and a tiny aluminum sheet.
February 21st, 2009 at 11:13 am
I bet your local shop loves you.lol
February 21st, 2009 at 11:51 am
Pretty cool product. Makes sense and looks like it would def. help. The graphics on that bike are sick too.
February 21st, 2009 at 12:33 pm
If you remove the backfire screen from the stock set up you can basically do the same thing. No advisable though. I have seen a couple bikes catch fire when the screen was removed.
February 21st, 2009 at 12:42 pm
Hahaha I definitely agree with your comment about being both an engineer and motocrosser. As a fellow powertrain engineer, I dont understand why you have trouble believing why this works. You already eluded to several ways that you reduce your pressure drop from the ambient to the port, and I can see that this system at least addresses the pressure drop across the stock airfilter as a way to increase VE. You dont have to change the geometry of the intake tract to give a lower pressure drop across the filter. When they pulled off the stock setup, you could see how the cage and backfire screen could be restrictions that would give a significant pressure drop across it. Its hard to tell from the video how the total surface area of each filter compares, but Im just pointing to the fact that the single layer Loudmouth filter simply gives a lower pressure drop than the stock setup. Aside from the filter though, one thing that does look like it is not conducive to making power is that the adapter plate gives a small expansion into the intake boot, which has a flow loss factor associated with it. I can understand why they designed it this way however, and Im sure it had to do with mating up to the airfilter they chose for the application. There is no intake tract length modification, because there arent really wave reflections occurring through the airfilter in the airbox. The power gain seen across the RPM band is a function of the lower pressure drop that the setup as a whole gives you versus the stock setup. Trust me, Ive seen this occur on race engines on dyno when trying different sizes/materials of air filters. You see a gain all the way across the power band with a lower delta P across the filter.
February 21st, 2009 at 1:43 pm
LET ME GUESS YOU’RE A CE.
February 21st, 2009 at 2:04 pm
the ONLY reason i would get it for my 09 crf450 is to make changing/cleaning air filters easier but for a buck fiddy im not buyin it i rather have a fresh set of rubber….im a broke azz mutha and tires make a diff to me
February 21st, 2009 at 2:14 pm
i can just hear it sucking the air..i can feel the power lol…. if u lowered the price to $100 u would make a s*** load of money
February 21st, 2009 at 2:33 pm
Have you looked at a backfire screen before Pdoran? They are fairly restrictive and increase the pressure drop on the intake system. Remove the pressure drop, increse airflow, increase power.
February 21st, 2009 at 4:50 pm
I think a response like this requires a couple beers for me and the author.
February 21st, 2009 at 7:55 pm
h0lesh0t,
Your comment about needing more power out of a 450 is of strict opinion.
February 21st, 2009 at 9:19 pm
is this true if you just use a regular twin air filter you can take off the backfire screen? i do not want it backfiring and having my air filter go on fire haha
February 21st, 2009 at 10:18 pm
I was out at our loca track and a kid cut the screen out of his stock cage on his CRF250… granted this squid never jetted his bike correctly, bolted on a pipe (at 7000ft elevation) and took off, poping and cracling in each cornet till… we heard no more anoying pop and crackle… looked out and he was pushing his bike back. When he got back we asked what happened, my first questions was were you out of gas lol (this kid is an idiot) did you put oil in it… then we took the seat off, looked like someone took his air filter and tossed it in a tree shearder, picked up the pieces and dropped them in his airbox and bolted the seat on…
Now it would have been less devistating if he knew a thing about the bike and set it up but his “more power” kick sucked his shredded filter into the engine… well you know the rest of that story.
My concern would be with no support how do I know that thing is not sucking the filter into the intake tract when its tapped out?
February 21st, 2009 at 11:56 pm
lol someone put a comment that this thing was a cheap priced add on. If you call a 160 dollar airfilter a cheap add on, I wanna see what the rest of your bike looks like!!!!!!!!!!!!!!!
February 22nd, 2009 at 12:06 am
in the case of a greater air flow distance being a minus wouldn’t you just take that from from the loudmouth, bolt it on and then clamp on any piece of foam that sticks out about an inch, i mean seriously or wouldn’t you just remove the mesh from your stock air filter frame? all it would take is some sidecutters and a bit of time rather than 150 bucks!
February 22nd, 2009 at 12:37 am
proper english please….
February 22nd, 2009 at 10:00 am
Not disputing the power increase claim, but it would have been more informational and undisputable if the video would have shown an actual comparison being done with the suzuki on a dyno with the oem filter set up, and then with the loudmouth set up, instead of a guy riding the bike and offering an opinoin.
February 22nd, 2009 at 1:12 pm
I put one on my 09 KX 450, what a product, changing filters sucks so bad, now it is actually kind of enjoyable because of the ease. THIS PRODUCT WORKS, IT IS AWESOME.
February 22nd, 2009 at 1:15 pm
Your a idiot, it is also making the jobe so much easier, you must not change your filter much cause you don’t have a clue.
February 22nd, 2009 at 1:19 pm
It all sounds good in theory but your motor is only gonna draw in so much air and fuel, you would need a cam that allows to hold the intake valves open a little longer to even benefit from this $150 paper weight.
February 22nd, 2009 at 3:05 pm
nice what about the air filter basket thing?
do u still need it
and how much does it cost i might get one
February 22nd, 2009 at 4:04 pm
The Venturi effect does its job. Re-jetting has not been necessary as far as we have seen.
February 22nd, 2009 at 4:44 pm
2 bad they dont make them fur a katoom o wait you dont need one for a ktm
ps:it actually does work!!
February 22nd, 2009 at 6:51 pm
Even if it does not give you any gain in HP its a pretty neat idea with just changing filters.. You don’t have to worry about making sure your filter is lined up correctly and also taking 5 min to find the hole to screw the filter screw in.. Looks pretty simple just slip the filter on and tighten up. Who needs more HP from a 450 anyways? Id get one as long as you can use no toil oil on it its worth it imo just because of less headache from the stock filter system.
February 22nd, 2009 at 9:22 pm
What’s “hores power”? Is it like a hore’s power or are you talking about your Friday night last week…. wait, I don’t think I even want to know.
February 23rd, 2009 at 9:58 am
I’m from the Bronx, NY and even we don’t ride without a clean filter you toolbag. You should run cooking oil in your motor. It will make you go faster. Less friction and it smells great.
February 23rd, 2009 at 10:09 am
Let it be known that this is the first time in the industry that we actually have access to the maximum benefits in horsepower in this portion of the bike. It can be argued that its “this” or its “that” if you want to further delay a wise investment into your bike and maintenance routine, but there hasn’t been any other alternative to all the benefits of this system. Lets just say that the kit for $150 gives you get more horsepower than $500+ elsewhere, filter changes that you don’t mind doing and the possibility that its sealing features will save your engine.
February 23rd, 2009 at 10:39 am
What would you know about over head valves you 2-stroker? I’m jk This thing sounds quite expensive.
February 23rd, 2009 at 10:41 am
150 BIG ONES!!! QUITE A BIT AYE?
February 23rd, 2009 at 6:02 pm
I think its absolutely hysterical that everyone who leaves a negative comment about the price of the loudmouth system calls it a “pricey air filter with a sheet of aluminum”….being that the loudmouth base and induction ring are both CNC machined pieces of aluminum that are hand welded together by a very skilled tradesman, then anodized for a great long lasting finish…id say that its well worth 150$$$….this system is very simple in the way that it works!
MORE AIR = MORE HORSEPOWER!
Just for the record all results are proven by dyno testing! Results might vary a lil bit from bike to bike…state to state… while re-jetting is not typical to achieve the same power gains…it might be necessary…
For the price tag of 150$$$…its a well spent investment to be able to protect a 7,000 machine…it works well on 2 and 4 strokes…with more power being seen on the 4 stroke machines…Maybe would u rather spend 6 times as much on a full exhaust system for your bike so you can get the same performance gains???
Instead of belly akin on a computer about not spending 150$$ on dyno proven performance…Get off ur computer…Vacum the cheetos dust outta ur belly button….buy a loud mouth and put your opinion on here after it completely blows ur mind!!!
BELIEVE THE HYPE!!!
TRANSWORLD DOES!!
February 23rd, 2009 at 8:45 pm
I love cheetos.
February 24th, 2009 at 8:36 am
For the price, you get a complete Kit to get you going. Not just a Loud Mouth. This includes 1 air filter, hardware, Trick, high quality Front Fender & Air Box Decals to bling out your bike and an installation guide.
February 24th, 2009 at 5:20 pm
everyone’s gotta quit complaining about the price… last time i checked thats the cheapest 3 or 4 horse gain on the market!
February 24th, 2009 at 8:55 pm
I think its amazing how many people are overlooking the HUGE benefit of making the filter change easier AND much less likely to knock any contaminants down itno the airbox that will destroy a 3K motor. Maybe they should make a carbon fiber version, then all these people claiming CNC aluminum components are “cheap” would want to pick one up no matter of price or gains….
February 25th, 2009 at 9:56 am
thats a great idea. i totally agree, i get more horsepower withouth my piston too, who needs it? and that pesky rear tire and sprocket, they just weigh my bike down… and that damn frame.. i get way more horse power when i just take off the whole thing anyways. theres no use for any a frame or even handlebars.. i mean, hey!, its a dirtbike!
February 25th, 2009 at 4:45 pm
Very well said kell…loudmouth mx stands behind all they’re products 110%….No cheaply made outta the states garbage here!!!
All though no plans are in the works for a carbon fiber version yet…we are always up for new ideas!!!!
100% American made!!!
Thanks kell!!!
February 25th, 2009 at 8:38 pm
there are tow realities to this deal. one is simplicity and the other is performance..changing and cleaning the airbox filter is a bitch, go ahead and hang your little rage over the cage and try and keep the trash out of your screen, what a joke. secondly is improved performance, even if its marginal its an improvement. so weigh the pros and cons of changing filters coupled with some improved performance and i think you will agree its a decent upgrade. of course if a 150.00 is alot to spend on a $7,000 dirt bike then i rest my case.
February 25th, 2009 at 9:04 pm
Dont you think with more airflow you would be letting more dust in?
BTW who thinks its really that hard to change the stock one? lol its one thumb screw. I would imageing you clean/oil this one just the same.
February 25th, 2009 at 9:50 pm
twin air is about the same so dont cry this sport is expensive get used to it you gonna skimp on a helmet to while your at it
February 25th, 2009 at 10:39 pm
Alex…I’m pretty sure that not oiling your air filter might let more dust in. That’s a given… As far as filter changes go, its the most hated routine maintenance we as riders have to endure. So why not embrace the fact that you can remove and replace your air filter in about the same time you can adjust your chain?? Assuming you have the proper tools… I guess knocking the concept all together would be more intelligent? RATINGS: MXA 5 Stars; TWMX: 10 for Power, Protection & Ease of Use.. That never, happens.
I guess everybody should ask themselves when the last time time they had a 5 Star Product on their bike?
February 26th, 2009 at 9:49 pm
whats up with those guys at 3:56
February 27th, 2009 at 5:00 am
yeah you can get way with out using an air filter,then maybe stick it to your helmet in relly muddy conditions! i guess it would work great! but i havent tried it!
February 27th, 2009 at 10:53 am
shut up bla ill listen to anything lutes says if i can get as quick as him ahahahah
February 27th, 2009 at 2:22 pm
I agree with both of you, it works perfectly not at all. I for one think that without reducing the load of air on the hinge pin contractor diode, you could never really see any gains of power anywhere. If you would reverse the cambient delta force or the air trifector about 20 MM to the 5th degree of duration deflection it would result in a massive flow gain. Until then It fails.
February 27th, 2009 at 11:35 pm
im sure lutes gets paid to say all that shit cause 1st off he isnt even fast enough to tell minor gains like that 2nd the little power he gained he lost when he covered the bike in mud and how would you gain power if you arent giving it more fuel to mix with the extra air. i should be a transworld tester this guys a plug
February 28th, 2009 at 9:08 pm
This is probably the same Tyler I’ve watched superman off a 60ft Table without the bike? hehe..Scars are permenant, but so are trophies…
March 1st, 2009 at 9:21 am
The shape provides the integrity of the filter. That’s why name brands such as No-Toil, Twin Air, & DT1 are making them. Thousands sold with %100 satisfaction provides substantial confidence in this product design. Its just one of those things that make you bike so much better you’d have to try it to believe it. Thats why we do Demos at the Tracks every week.
March 2nd, 2009 at 12:05 pm
I am unable to see these videos at work but please tell me this isn’t a product that makes already track closing loud bikes… loader. That would be just plain stupid on everyone’s part, especially TWMX’s. Whoever has convinced themselves they need a tad more power from a 450 is deluding themselves.
March 2nd, 2009 at 7:21 pm
OMFG…. are you kidding me??? $150 !!!!! What a freakin scam you guys got going there.. Brendan Lutes I have totally lost all respect for you helping sell this snake oil. There are people who don’t know better and would listen to you just because you work for a magazine. I hope your boss pulls you aside and slaps your wrist for thinning down an already watery magazine.
March 3rd, 2009 at 9:32 am
notice they said “fuel injection bikes”
March 3rd, 2009 at 5:30 pm
I’ll buy it….. As soon as the price drops if it isnt going to give me that much of a difference then wtf am i going to spend a 150 bucks for a 100 would be a little pricy just for an air filter but i’d buy it 75 would be reasonable
March 4th, 2009 at 10:45 am
wow it would take like 5minutes to invent that system…150 seems kinda steep for a piece of metal and 1 air filter wow
March 5th, 2009 at 10:01 am
Would be worth the $150 just so I wouldn’t have to deal with that wing nut thing that holds in the filter…
March 15th, 2009 at 9:34 am
Modern 450 MX bikes already have too much power for 99.9% of riders. Even some pros do not use all the power. $150 seems like a bit much for a $5 piece of chinese built aluminum (and a $5 filter).
March 18th, 2009 at 4:19 pm
American made…That same system/kit also works on the following bikes:
SUZUKI
2004-Present RM 125
2003-Present RM 250
07-09 RMZ 250
05-09 RMZ 450
KAWASAKI
1990-07 KX125/250
YAMAHA
1998-99 YZ 400F
2000-2002 YZ 426F
2001-02 YZ 250F
1996-01 YZ125/250
1991-2002 WR250
March 18th, 2009 at 4:24 pm
Start up Kit costs $150, comes with system, hardware, air box & front fender arch decals as well as 1 filter & clamp.
That same system also works on the following bikes:
SUZUKI
2004-Present RM 125
2003-Present RM 250
07-09 RMZ 250
05-09 RMZ 450
KAWASAKI
1990-07 KX125/250
YAMAHA
1998-99 YZ 400F
2000-2002 YZ 426F
2001-02 YZ 250F
1996-01 YZ125/250
1991-2002 WR250
March 19th, 2009 at 1:57 pm
What a waste of money!!! Hear a lot of talking and no DYNO graph… You can get the same horsepower FOR FREE… Just take 10 mins, a heat gun, and a pair of snips and cut the screen out your self. BAM free ponies!!! Better yet for those of you that don’t have your suspension done.. Put your buck fiddey towards something that acutally will make you faster!!
March 24th, 2009 at 6:49 pm
The response above is an uneducated opinion… We would have called it a screen removal kit if it didn’t make substantial gains over the stock intake, screen removed. If you want to see a dyno chart then I suggest you Check out the News Section of LoudMouthMX.com, or copy & paste the link below. Unlike many other companies, we don’t make fake claims to give our/other riders an advantage. We Test, Test, Test & Test some more in between our Demos at the tracks. It would be to your loss not to believe the hype. This design has already evolved the direction of this industry in a very short time.
Dyno: YZF 450
http://www.loudmouthmx.com/sitex/images/stories/newy.jpg
March 27th, 2009 at 9:47 am
I feel sorry for any of the suckers that fall for this. A fool and his money soon part ways.
I wish I had the link or article but it is a proven fact that removing the screen from a modern mx bike makes NO difference to power. The screens are so freaking huge compared to the carb they offer very very little resistance.
It’s so obvious Lutes has a stake in this scam. He’s in here defending it so many times. I have totally lost respect for him now, not that I had much to begin with. He is a poosy on a bike and I would never take anything he says about any given bike seriously.
And for any of the dudes here who think you can use any more hp from a 450 is living in a dream. Trust me, they may not tell you but non of your friends believe you are that fast.
March 27th, 2009 at 10:32 am
Just so everyone who is hating on me in this test knows. I’m not on here defending anything, it was my opinion in the video and I’m sticking to it. Did you ride that exact bike I rode? No. So then how can you say I was wrong or have anything to do with the company who makes the product I was testing. The other Brendan that you see posting on here isn’t me!!!!!!! It’s actually the guy that makes the Loudmouth product!!!!!!!!!! When I post it shows my whole name like it does above this post. Now, go ahead and hate away. Like they say, Opinions are like a$$holes, everyone has one…
March 27th, 2009 at 10:34 am
Also, let it be known that if there is any confusion on if this is me or a different Brendan. This comment above here ISN’T BRENDAN LUTES!!!!!! Everyone on here seems to be getting that mistaken. When it’s me posting it shows my picture like it does above this comment I just made!!!!!!!
March 27th, 2009 at 10:39 am
To clear it up even further, like I have said below in this comment section, the Brendan above my comment isn’t me (Brendan Lutes)! I think people are getting it confused. When I post or comment, my picture shows up above my comment like in this comment!!!!
March 27th, 2009 at 10:47 am
This is the last comment I’ll write on this subject. JoJo. I don’t have a stake in Loudmouth. I simply tested the product that day, and on that bike with those track conditions, it made a difference, which I conveyed to you and the other viewers. I stand by my opinion of the Loudmouth system. It does work!!! You didn’t ride the same bike I rode that day, so please don’t call me a liar when you really have no idea how it performed when I rode on it. And for the record, this really is the only post that I’ve made defending anything that has to do with the Loudmouth system. For the most part, I’ve let all you people voice your opinions and hate on everything about this for the entire time. The other “Brendan” that you see on here fighting back and giving facts about the system isn’t me!!!! He’s one of the guys that created the system!!! As you can see above this comment, when I post my photo and full name shows up!
May 14th, 2009 at 12:51 am
for Pdoran. you think it doesnt increase horsepower well ur wrong cause ive riden my friends bikes with this new air filter they have and you can feel the difference and i have seen the dyno test sheets and shows the improvement of horsepower so dont talk about stuff that you dont know the truth too untill you see the papers proving their fact. You are to judgemental for something you dont know about.
June 9th, 2009 at 7:52 pm
I just bought one for my YZ. Maybe a little expensive. I can tell off the bat the throttle response is cleaner. I didn't get a chance to turn enough laps yet to comment further. It's nice not having the screen. It's clean and streamlined. Installation is a snap. I'm glad to not have to mess with the stupid little wingnut. If all I get is a crisper response than I'm more than satisfied.
October 3rd, 2009 at 4:41 pm
yea…..this product will offer 0 performance, ur stock intake is not so much restricted by the foam/plastic holder as it is more the amount of air that is being drawn into ur airbox that will help. For mx riding I suggest you make some vents on the side of your airbox to scoop/draw more air into your filter. much more likely to get a gain than this silly product. Still use are Americans and Americans will buy shit if it is coated in sugar.
Long live Australia m8!!!!!!