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I just picked up a 19 kx450. I’ve always had full built 250 2 strokes on 110 race. What happens if I put vp race fuel in my stock 450? Do I run internal risk

How do you remove the grommet in the air box?

Well he said how much Hp the 2023 had but never said how much the 2024 had. It looks like it’s more but a quick telling of what it was woulda been nice lol

Great video and explanation

2024 version has better hp at higher rpm because of the new design of downdraft intake design ang new headworks.

Is the muffler corked up like most say? Thanks for the video!

Perfect video thank u!

Enough power but lacking like 6-9 hp from comp.

Awesome mate appreciate this vid

How donyou remove the gromet

Appreciated

Well done!

Can you do a updated video when you have a play with ecu mapping with the app?

First one I've seen that shows with the grommet removed overlay

Awesome video. Such a good comprison

Wow!! Thank you, I now think I may buy one ....I weight 250 and live at 5000 ft., so I was worried.

Next to nothing.

I have same bike same year. I bleed kawi but jmo I feel the white coupler is B.S. before and after installing my 4.1 fmf full exhaust. I’m so use to the low end Power hit from my 2015I’ve ridden for past 7 years that my 2023 feels honestly slower but kawi calls it linear/smoother/easier to ride….🤷🏽‍♂️🤷🏿🤷🏽‍♀️ #My buddies 2023 Suzuki RM450 has more thump at bottom then my 2023 KX450. RM power Feels like the older 450 thumpers!!! 😆😁😄😃😀

Крутой мотоцикл !!

Hi is this the same for the gytr power flow kit

those black rims that were on the kart before actually look really good. do you remember what they were called? might get myself a pair.

Does anyone know if you can run the same coupler for 250s and 450s I guess what I mean is I've got the green coupler will it work in my KX450 and my KX250 both

I think on your chart with the 3 different outputs @ 3:14 the white coupler was supposed to be yellow line right? You had yellow line as green couple. Reason I say this is yellow was the hardest hitting according to dyno chart which would be the white aggressive coupler?

Bad ass video glad someone finally Dyno’d couplers!

1hp for a 250$ air filter

This video was fucking awesome!!!!! Keep them coming!!!!!

For anyone looking for the next step,Cycra makes a taller lid. I added one to my YZ250F and added a small vent hole also.

That bike looks sick

I bleed yamalube, have the tuning fork logo tatted on my arm. But Yamaha OEM air filters SUCK!!!!!

Hi there, I have a 2021 WR450F and have a power flow kit to put into the bike over the weekend. Any map suggestions please? I assume the photo power turner has fail safes built into it so people can't blow their bikes up.

Keep doing these wtf

You've reached the next bottleneck. The airbox itself

The kart looks amazing!

Hi Judd it is Fischer

I know you... You met my step dad Jake!

Looks amazing, happy laps mate:)

is that rear wheel HP ?

4 strokes are gutless extremely overrated pile of crap

This is wrong it has 39

Hi mate

Awesome vids 👍👍

Please can you pass me the best map to run my yz450

Please please compare dyno of Airbox cover on vs off. And with and w/o backfire screen. Be nice to know just where the restrictions are. Thanks Waiting for more great info👍

Yeh, I heard the bottom to mid power is less than my '19 but a tad more on top. I'm guessing they just changed the cam profile a little. I rather have a healthy bottom end for the Harescrambles I like to race. But adding more on top would be great

Have you dyno'd the 250f? Also, would have been nice to test/compare without the cover on. I know just cracking the cover open and quickly reving it, it instantly ducks the cover down. Has to be restricting air flow. I'd bet that would make power difference. Thanks. Love real substantive provable numbers. Your new sub👍

The dyno isn’t going to show what that bike can really achieve in hp cause you have no air being forced in the bike like it does when riding the bike.

No chart?

You would be hard pressed to find that horsepower gain on the track. Thanks for doing the test.

Just got my 2021 luv it

very interesting !!!! if someone wants to squeeze out the last HP its okay thanks for that nice comparison