Kawasaki KLX300 EJK, Exhaust, KDX Snorkel Install: 0-60 MPH Before & After

[@brandonhamilton3416]

With my experience, riding for 34 years, carbureted and efi bikes. The most effective mods for the money is what is most expected. Free'er flowing exhaust and k&n air filter. Best money spent and most power gains with stock internals. Stock getting and tuning are great with such mods. Can gain 10 percent power and torque with just these two mods.

[@stephencox4224]

I noticed whoever supplied the bike did not pull the foam airfilter and oil it which is part of required predelivery so the mixture will be lean because of that so a revisit after oiling the filter will be required for acurate power measurements

[@quinnwarman5139]

Love how you do the 0 to 60 right next to the 25 sign awesome 👌

[@jiveturkey9223]

Yeah, like F**k the law! 🤣

[@hewasdeadwhenigotthere46]

Lmao its simulated!!!

[@BlueRidgeRider]

Excellent video!

[@GrotrianSeiler]

This is a great video. I hope you decide to do more in the series. You make the bike even more appealing with what you’ve done to it. Very tempting. Fun.

[@goaheadmakeourdayscooterpe9644]

Just a tip, when ever putting stainless steel to stainless steel use never seize especially on exhaust like the baffle screws. It will gall and weld itself together or use a regular steel screw.Almost ruined a new muffler, and had to drill out the screws.

[@beamdoctor5637]

good to know

[@mikemathews1711]

Lots more acceleration ....good video. IMS makes a 2.7 gal tank for the KLX.... about $400. I installed a Twin Air air filter for more air flow, along with the snorkel, EJK and FMF Q4 pipe. The dyno says 25.4hp @8k rpm with 17 ft/lbs of torque at 7.7k rpm. The KLX cam really comes on at 7k rpm thru 8.5k rpm. Dirt Rider did a dyno run on a stock KLX300 with 23hp @ 8.1k rpm and 15.4 ft/lb of torque. Once you are satisfied with the tune, I mounted the EJK under the left side panel which attaches to the tank. If fits very nicely out of the way but easy access with just removing the side panel if needed.

[@makjak111]

Which twin air filter fits?

[@mikewex4764]

Great video. Coming from a CRF450L, I just got my 2023 KLX300 2 days ago but won't be able to pick it up for a few weeks. But doing/buying the required mods, at least in my mind:(footpegs/handguards/skid plate/different bars) that I have done on other builds. I think I'm going to at least do 1000 miles of break-in before considering what you have done. I've found over the years that the factory engineers have found their sweet-spot that improvements like this are minimal. Want to go to Stage 2 you might as well spend the $$ up-front and get a Beta or Husky or KTM. These bikes are pretty much "there" off the factory floor at a pittance of the price of the Europeans. I am however interested in the snorkel & Exhaust upgrade only. But specific to dropping some weight between the factory can & the aftermarket can. Does anyone know the actual difference in weight other than "feels lighter"? Thanks for the excellent video.

[@KrustyQuad]

well sort of.. the engineers have their hands tied because of emission regulations. These bikes have to meet the strictest of requirements so they can be sold in California... That's why there is such big gains just be swapping out a muffler, opening up the intake, and dialing it in with a tune....this goes for nearly every bike.

[@tieoneon1614]

When i put on a EJK for my '18 KLX250, i had already gone the cheap route and put on the O2 sensor bypass from Europe for $16. I figured the EJK would be better....but made almost no difference. The bypass was just a resistor to read the ECU optimal fuel/air ratio and run it richer after putting on an aftermarket pipe

[@keithcanfield6519]

Best in depth video I have seen so far thanks for sharing. Highly appreciated !

[@josephgeorgeejr7039]

Ur time gains on 0-60 are definitely more on lower end I can tell just by the times compared also 1.30 seconds is huge in racing great video as well, also the back fire is common on delkevic exhaust for first 50 miles or so

[@tatmanmyownbossdannydraco]

Cap only shaved 1 sec lol

[@leewaken5059]

Edit on comparison test is done well and very satisfying.👍🏼

[@beamdoctor5637]

I loved your efforts and honest gas tank size opinion and kinked line warning. I just bought the 2024 model and I am not overly impressed in stock set up. I am putting racks on my bike and lowered 1 inch. Next winter I will probable do what you did for more power.

[@michaelstone2596]

Have the same exhaust on my crf250l. Great value for money

[@savagebikerx1357]

Great video, ty. I read that if you dont do the o2 sensor delete, the ejk doesn't work properly bc the computer adjusts. Be worth the delete, and be a great new video.

[@thomasschofield6633]

best video if seen yet on a stage 1 tune!

[@trevlanes]

I just did tusk rear rack and Oxford heated grips to mine :) grip heaters are sweet!

[@KatRiders]

i got the oxford heated grips on mine, sure saves my hands on early morning drives to work in the spring

[@psyolent.]

starting bike without exhaust when changing it over is a rite of passage mate! has to be done.

[@FullArmorE6]

Very well done. Let's see a lot more of this bike.

[@Myrussell67]

Would have been interesting if you did the runs after each mod. So just exhaust 0-60 then just snorkel 0-60 then exhaust and snorkel 0-60 , ejk and exhaust 0-60 EJK snorkel 0-60. Just so you can see exactly where the power is coming from. I know lots of work but could be interesting.

[@dREaDneck_Moto]

Yes, I agree with this comment 100%. In any scientific experiment, you should only change a single variable at a time.

[@d_ward4871]

I like that idea too. Also interested to see a 0-60 run before the EJK was installed

[@davidrsmith2417]

The drag racing on a street while eyeballing a speedo to stop the watch, with all of the variations in riding technique (clutch slipping or not, high revving each gear or not, different ambient temperatures and humidity) is far from an accurate test. The precise way to test these mods is to put the bike on a dyno, which as you know makes the rider's technique moot. The dyno computer keeps very accurate measurements of HP and Torque vs time. And repeated runs on the same bike (w/ same mods) are very similar. Any Harley rider will swear that his bike is faster after "just removing the mufflers" - but the dyno results invariably disagree - modern 4-stroke bikes rely on a certain amount of back pressure from the exhaust to deliver maximum wide-rpm power. Removing mufflers or running wide-open aftermarket mufflers usually decrease HP / Torque across the entire rpm range except for a small peak in the very high range. Money wasted.

[@Myrussell67]

It’s just a KZbin vid. Relax

[@roderickmoyer9851]

God modifications now start showing more videos of it out on the trails

[@jonfisher7071]

Great video! How much did those mods cost you? I'm looking into getting one. Thx!

[@yammi.raven.r6891]

Hey man! late to the party as I just bought my 2023 KLX300SM. But as far as where to mount your EJK and still have solid access, I've seen people run it on/near the frame along the right side of the bike, in a gap by the plastics near where your calf would be! I'm sure you already found a good place for it by now though, thanks for the video though, very well put together, especially with your speed averages!

[@GatlinMcDoubleStack]

I’m looking at getting one. Wish they made it in a 450 though.

[@greenmoto]

I thought I was just a fat boy getting my 0-60 times. Makes me feel a little better now 😂

[@ar2043]

What a great video. Thanks for the thorough content and your voice/attitude is very relaxing!!! 🤣🤣🤣👍👍👍👍

[@JasonStJohn-my1cs]

You need to disconnect the O2 sensor for that module EJK to work properly.

[@chrisb6791]

Cool informative vid, kid. With a bonus trail ride at the end!

[@kennyg42]

Thanks for the great video. How much weight do you think you lost from old exhaust?

[@diylife1688]

excellent content mate! i think ill buy one for lightweight Adv

[@GibbAsp]

Pull the secondary throttle plate and bin it. Fills the midrange on full throttle

[@Ted007-r5r]

I would be interested in knowing the weight savings of the new pipe & the weight of the existing metal fuel tank. Please keep up the great videos.

[@albertgonzales5857]

Great mod video but what we’re the settings you ended with . I want to keep the baffle in

[@Cabooseified]

Oh I know where you are! 21:00 your in the Pittsburgh area, not going to say specifics for obvious reasons. I saw that road and was like yeah, I've been to Barnes lol

[@robertjavior4339]

It sounded like it lost some power with the baffle out, there is such a thing as to much flow especially on smaller motors.

[@nomasker1360]

Do a Big Bore and a Cam next . Sounds the best with open exhaust . Especially coming down the road

[@GoldGuyRides]

Can you get a big bore kit and cam for this bike? I haven't seen one yet.

[@nomasker1360]

@@GoldGuyRides yeah guess there are none yet ... maybe check J&E pistons

[@darkshizuma2556]

​@nomasker the 300 is a bored 250, so great news! Already done!

[@robertrodriguez8167]

First videi of your i watched, you werr working on a ts185, you've come a long way.

[@GoldGuyRides]

Thank you!

[@Carimars]

What a great video, thank you!!

[@Rickmac22]

Great video and content!

[@TeamProCycle]

Great job on the video!😎🙌

[@mr.terwilliger5728]

I like my bikes quiet do you have any suggestion for a very quiet exhaust with more flow than stock?

[@billingsfmx]

I have the snorkel and Delkevic with spark arrestor installed. I habe a few videos if youd like to see the mods Ive made so far. Biggest difference to me was the throttle response. It feels more peppy and powerful on the lower end. Not much top end difference. On the trail its definitely noticeable. Im on the fence about the ejk. Bike doesnt seem to be running too lean. Mine pops when cold too, it runs rich till it warms up. A pair valve delete plate or plug would solve the issue. Such a fun do it all bike!

[@danielgreen7159]

I have the Delkevic and snorkle and plugged pair system . No fuel controller. Very little popping . Checking the spark plug color for fuel mixture looks fine. I see no reason for the fuel controller or to eliminate the o2 sensor.

[@d_ward4871]

@@danielgreen7159 what’s the “plugged pair system” mean ? I’m thinking I should mod up my KLX’er now too

[@danielgreen7159]

Pair stands for , pulse air injection reactor. It allows air into the exhaust system so that the reaction is to heat it up quicker so thar the catalytic converter starts working sooner.

[@danielgreen7159]

I plugged the air hose to disable the system .the exhaust stays cooler and reduces popping.

[@d_ward4871]

@@danielgreen7159 thx 🙏

[@binobones]

What kind of riding jacket is that? Looks sick

[@GoldGuyRides]

@@binobones it's the borleni racing motorcycle jacket from Amazon, I love it!

[@spring9603]

Pretty good times on a descending slope. Now let's see you do it on an ascending slope.

[@longranger5226]

Definitely sounds better with the baffle in…a drawer in the garage. 😂. What can I say, I’m a sucker for a louder dirt bike.

[@DANGITKREEPA]

GREAT VID

[@patdog5922]

awesome video, thanks for sharing!

[@joshdoddadbod]

Dang I think this is convincing me to mod my bike next winter. It just needs a bit more pizazz

[@TheSmatlock]

Awesome bike man!!!

[@quinnwarman5139]

You need to get your self some boots mate broken feet suck keep up the awesome videos

[@scottmilo3429]

Really want one of these but...have to much 2 stroke memories of kawi 500 ktm 406 etec and now curre t ride ktm 1190 does 0-60 in 2.6 then 5.9 to 100 mph, but still want 250/ 300cc non race enduro sigh where is the olf dt250

[@thomasschofield6633]

for sure! nothing compares to a 2 stroke.

[@ricksters11]

A sprocket mod would be cool to see in comparison. Front and rear?

[@patw9175]

I have a Delkevic can on my T7, it's pretty sweet. Good sound, not crazy loud though, and they're not charging Yoshimura prices either lol. It is weird though, they send you a LOT of stickers

[@geraldburmeister9637]

Thats no lie. I've bought 5 delkevic systems. I'll never run out of stickers!!

[@kb-xy6pc]

That popping drives me crazy

[@copisetic1104]

The early klx 250 was rated at 28hp the later klx 250-300 had the milder cam. The engine is lacking lift and duration, they come alive with a better cam.

[@diggy-d8w]

But how much did you spend to make up the 1.4 seconds in the 0-60 run? I get that you like modding stuff & I used to do the same but for over half the folks they bought this b/c of a lack of money? But I gave a thumbs up b/c you believe in what you are doing. That's worth something..... peace man

[@diggy-d8w]

So today I did see someone who did the snorkel mod & an ecu plus they took out the 2nd throttle plate. On the exhaust they removed the heat guard & cut 4 like 2 1/2" cuts & put the guard back on. That was to relive the back pressure since they'd opened up the air intake so much. For a stock exhaust & modified, it sounded quieter which was what he wanted but he also got some gains similar to yours. I hope you're alright, you didn't like crash or something & I only asked b/c I'd dropped you a post 6 months ago. Anyhoo, hope this finds you well. peace

[@zr2trackerjoe]

Finally someone did the video I've been waiting on Good work on the video I have the same setup except I have a delkavic tri oval pipe. You aren't riding in the Durty Dabber ride are ya?

[@GoldGuyRides]

Thanks for watching! No I'm not gonna be attending that one it's a littttle but too far away for me. Have fun though if you are!

[@LaceyOGrady]

You should make a video showing the different 0-60 times only changing the tune

[@MetalY2KMusic]

Hey hey next time you should benchmark: 0-60 0-30 30-60 Would be very informative, thanks man love your videos

[@garrettsmith8286]

It is recorded in the video. Can't you just look at the time stamp?

[@gorgon9786]

Great modifications GG. Seems like a good idea, towards make it more interesting to ride on.. About 15-20% more acceleration, it's very noticeable!. - you must by all means keep your original parts.. Best luck onward from here! 🙂👍

[@andrewbisbee9251]

love the video I have a 23 klx 300 do you think the exhaust will fit? and also can you give the exhaust model #?

[@GoldGuyRides]

Thanks, yes it will fit. I don't think anything is different between the 22 and 23 models. Here is the item number for the Delkevic 14" slip on muffler with the spark arrestor: 171966809449 I can't find any available on eBay right now but it should become available again soon. Cheers!

[@andrewbisbee9251]

@@GoldGuyRides thanks bro ill be watching your channel....i might go with Yoshimura I'm still deciding....great channel

[@CAPS_Paranormal]

Did you notice an improvement just by changing the exhaust? Thank you!

[@GoldGuyRides]

Only an improvement to the sound!

[@jbird3868]

I talked with ims tanks. They told me the 3.2 tank for the 250 fits the kl300 1.2 larger

[@inrptn]

seriously? That's a game changer. Did you install it?

[@Snide01]

I have one on my 300, it's much better than the stock tank. Just had to get 250 shrouds..

[@inrptn]

@@Snide01 Could you please post a link or model number for the tank? Thanks!

[@Snide01]

@@inrptn I tried to post a link and it looks like it wouldn't let me. The website that I got mine from is "Four Stroke Works". Let me know if you find it.

[@inrptn]

@@Snide01 Thank you! Is it the Kawa gas tank for $250 and the Kawa shrouds for $100? I found those.

[@MotoMango]

The mods have been sick bro! We gotta figure out a way to trail ride together in the future 💪💪

[@GoldGuyRides]

Yess bro that would be awesome 👍

[@terrys.7655]

Nice video

[@dionoliveira4058]

No baffle can only be for the teenie boppers lol. Sweet mods dude and a cool vid

[@garrettsmith8286]

Said to the millions of old farts riding around on their loud Harleys. lol 😅

[@Adam-ox4mt]

More fuel is injected when the motor is cold, which is why it is popping because it is running rich when it’s cold

[@peterlindvall7671]

No, it's popping on decel, because of the PAIR, and you can plug it with a marble in the air supply hose.

[@Esperia-ef9xh]

Nice job

[@SupersamProduction]

Might be a stupid question but haven't found the answer online. Looks like you were able to remove the KLX and 300 sticker from the panels, is that right? Were they easy to remove?

[@GoldGuyRides]

@@SupersamProduction yeah I removed them in a different video. They were really easy to remove after heating them with a heat gun.

[@SupersamProduction]

@@GoldGuyRides You're awesome. Thanks for the quick reply. I'll look for the video unless you have a link real quick

[@jeffg3895]

My Delkovic pipe pops just like yours without the EJK.

[@Weltbummler23]

Dont know if u mentioned this in your other videos but how much more top speed do u get with this over stock?

[@KingFriday274]

What mirrors are they? Much better than the round.

[@christophe3358]

i have the same exhaust, i do no spark arrestor, much louder a tad more pull

[@klxonthetrails2093]

What did you use for a tail tidy. It seems to give more space between Delkovic and blinkers than the stock set up. That is what I am looking for?

[@GoldGuyRides]

I made a video about that! Give it a watch: kzbin.info/www/bejne/qoHbiHiJnNN0nsU

[@yougear100]

How was your mileage affected?

[@twistedjeeper1]

I would also be interested if there was a change in fuel economy.

[@axelsnipergarage3139]

BOIIIIIIIIIIIIIIIIIIIIIIIIIIII!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@albertgonzales5857]

Just got my exhaust installed . What were the final setting you used

[@markscott117]

Your numbers are off for the setting on the ejk check the website they don't match up when you tuned it

[@YZ426f]

I just cut my stock muffler as close to the first bolt as possible its so loud 😂😂

[@dandil]

an EJK will not work great on a bike with an O2 sensor; the feedback from the O2 will make the map move back to where it should be, so you'll have all sorts of weird behavior. you should leave the mid range alone and only enrich the high range where the ECU actually goes into open loop at high loads.

[@williamfoster4268]

Should it not go open loop once it's up to operating temperature or is a KLX300 completely different from everything else that is fuel injected.

[@dandil]

@@williamfoster4268 other way around; open loop until it warms up. Also does open loop at wide open throttle.

[@bottomlinebassin2001]

When you turned it over with the straight pipe I was like 🤣 yep great minds think alike hahaha

[@RupDawgs]

Hey GG - I bought a DRZ400S for my first dual sport and have had it 2yrs now. I still don't feel much confidence on it as it feels REALLY top heavy. What are your thought about the KLX300 vs the DRZ for ease of riding? I LOVE the power of the DRZ as I have jetted it and run exhaust but the height and weight seem to make me feel uneasy. 5'10" 220lbs

[@GoldGuyRides]

I have ridden a drz400 and I know exactly what you're talking about. I feel way more confident on the klx300. It is a lot smaller and lighter. You might be a little disappointed with the power of the klx though since you are used to the drz400 but with these mods I think it is a lot more tolerable.

[@spartanx169x]

I'm late to this conversation, but I have to say, the KLX300 is not top heavy AT ALL, the handling on it is amazing. Kawasaki is really good at getting the center of gravity lower than their competitors on all their bikes.

[@ar2043]

So if you wanted to, you could literally just cut the stock snorkel in the air box and have almost the same thing for free, correct?

[@BB-1990]

You could if you wanted no improvement. The new snorkel has a much larger intake area.

[@Stanislav888]

Класно цікаве та корисне відео 👍

[@truckacabrarex9831]

It’s a whole second faster with just the stage one mods wonder what it will do with stage two

[@ryzon8029]

when you say 60! it sounds like Timmy!

[@UrszulaBroniszewski]

On my g.f phone ... I have klx sm 2022 I want to upgrade exhaust and after watching video help me out so thAnks

[@Ryan-oz7ud]

I noticed the ejk has settings for kdx snorkel and airbox lid removed; why did you choose the kdx snorkel?

[@GoldGuyRides]

The snorkel is there for a reason, I don't want to get rid of it.

[@blastradiu5]

Did you weigh the difference between the stock and Delkevic exhausts?

[@GoldGuyRides]

No I didn't but the delkevic is definitely lighter

[@snwboardr1987]

How is the bike feeling now and do you still have the same EJK settings? I have basically the exact mods and am trying to dial in the EJK settings. Talking to them on the phone they recommended starting with 2, 2, 2, 4.5, 4.5, 5.5 which is working fine but I feel like its not 100%

[@401BAM]

Are you guys still running the same settings gs? I feel like I'm running a little lean as my header pipe is pretty blue now..

[@hackcult3738]

@@401BAM mines doing the same. It glows slightly at night until it warms up and the idle rpm’s go down. Did you find a solution yet?

[@chevy2575]

Did u remove the secondary butterfly?

[@jcbwltn143]

Take off the emissions recirculating system and the valve for it. They make a plate to cover the hole after removing the valve. Thats where your popping is coming from

[@Scantcity]

Great work, I wonder how just the kdx snorkel vs stock would help? Stock is so restrictive...anyone try just that one mod?

[@jeffg3895]

Ive seen plenty of videos where guys are just removing the snorkel. The KDX snorkel cost $50. I would think no snorkel would be better than a KDX snorkel?

[@trevorjameson3213]

@@jeffg3895 Yes, no snorkel is the way to go, but it's best to enrich the fuel mixture a little if you do that to keep it from running too lean.

[@williamfoster4268]

It's running lean which is why you have the popping on decel.

[@BeanoNoir]

That's unburned fuel detonating in the exhaust. It's pretty normal when switching to a high flow exhaust, hence why they ship with spark arrestors. In other words, too rich, not too lean. It clears up a bit when the combustion chamber warms up because it's burning more thoroughly. A little pop adds character though.

[@williamfoster4268]

@@BeanoNoir negative ghost rider. High flowing exhaust will lean you out unless corrected. These bikes run lean from the factory.

[@gdough87]

What riding shoes are those that you’re wearing?

[@dethklok21]

un clip the o2 wire under the seat and untwist that no bueno twisty wires.. :D

[@dropsofink1336]

Thant was great when you started it straight piped 😆

[@albertgonzales5857]

Who was your supplerof your muffler?

[@deanteasdale6252]

Did the spark arrestor and baffle come at no extra charge? I didn't get either with mine.

[@GoldGuyRides]

Yeah they came with mine for no extra charge. It was probably a mistake, I would email whoever you bought it from.

[@GatlinMcDoubleStack]

Shifting a little too early. Milk tf outta that thing! lol 😂 Good video though.

[@tanner2669]

did your ejk say it was for the klx300r?

[@GoldGuyRides]

It just said it was for the klx300.