The guy on yt that did the yz450 turbo, made the bike a weapon! He couldn't keep the front end down in the dunes! Every time the turbo hit it hit hard! Cool af!

Best mechanic is a self taught mechanic 👍

Dyno video tuning with this bike would be interesting to watch!

Awesome work Justin! New England motorcycle museum Center of the motorcycle universe. Keep it up guys!

Hired him the day I met him. Justin is one of a kind you can just tell that kid is a wealth of knowledge good job on that one Ken

Seems like a good dude! Ken is lucky to have him on his staff!

Can't wait to see it on the dyno!

Very talented young man to pull that off‼️awesome 🇺🇸💪🏼🦅

You absolute mad men, I love it 👍

That foam intake filter has a 15 minute life when it get hot.

What a amazing build and the qualitybis second to none you guys should build a snowbike out of one of those monsters you can truly never have enough ponies to turn one of those tracks trust me i live in montana and own one

i noticed on some other videos the young bloke was 1. knowledgeable 2. respectful 3. keen …not surprised at all to now find out he does these sorts of mods 👍

Wow! I appreciate the willingness to do this and the skill to make it happen. Almost speechless.. almost.

Just love it Put. Some turn signals on it I’m bringing my checkbook

Wow what a machine. I’m from England and the Mrs and I can’t wait to come to New England and visit you guys! See you soon!!!

Y’all dudes are awesome. Young man there has a bright future.

Love it! Great work

Turbo MX Bike! 😮

Glad He Be On Team Kaplan. Man i Cannot Wait to Visit Your Place, See YOu All Soon, HUge Respect From the Isle Of Skye Scotland !

How would the clutch plates be affected buy the thinner hotter oil from the oil return off the turbo??

Dang that's so off the chain. I'm at home right now recovering from a shattered femur/ broken hip with a full hip replacement comming up in July. As soon as I get healed up and get back to work I 100% am buying one of these turbo kits. So Epic.

Needs a larger intake plenum for the single cylinder turbo.

Awesome video! I love the amount of innovation that Justin is bringing to the team, this is something that I have never seen before, I think that it turned out very well, keep it up Justin, you are doing awesome, 👍👌🤙👏😁💯😎✌

Not only can I just look at that bike, but I've been using a Boxo tool box for the past 10 months in a welding school, good boxes for sure.

Keep snowbikes in mind. Highly interested.

Super cool bike!!! Kaplan and his team is absolutely #1!!! Period!!!

Maaaaan oh man, amazing craftsmanship

Good to see you finally wearing boots man 👌🎯 would have liked to see the thing ROOSTING great build guys woohaaa!!!

It looks cool I'll give you that I'm just a old two smoker kinda guy nothing like the sound of a 500cc two stroke to get the blood pumping. Y'all are #1 in so many ways love the videos your museum bike shop mechanic shop is all second to none l don't know how you get your hands on some of the beautiful older bikes especially the old 500. If I ever hit the lottery most of it will go to you because I would take a lot of them beauty's off your hands.

A lot of work, my respect

so sick! a 450 with a turbo is a dream

I respect you for trying

thestreetsweeper would love this. he made a 110whp turbo yzf450. its surprising how much boost a motor designed for high revs and low torque can handle

That's absolutely insane!! And done so dang well! You should make it a kit! Crazy people that wanna run mx bikes that are insane! That'll be it🤟🤟🤟

Thats almost as wild as my wife !😮😅

I love it when old school beats electric... Makes me smile.😊 they got some pretty cool electric stuff, (and I hate electric stuff), the stark barg I really thought was cool, but THIS....I LOVE IT

I always wanted to turbo charge my honda Rancher 350 es 4 stroke 4wheeler but just can't find the parts to do it with and without blowing it up from too much boost

never thought i'd hear a dirt bike with turbo noises!

i’ve always had thoughts about a turbo 450, but do they run well?

Wow!!! Careful boss!! Go fast!! No lay down!! Cheers!!

I question is whether the engine contains enough oil to feed the turbo and engine internals, and the life of the oil because of the heat created by the turbo

So sick just amazing. One of a kind.

Can't wait to see some dyno runs and races! Let's see how it compares to the cr500 and 701.

🐝🏁 Nice and fast👌 great Job Justin 👍

Awesome job once it’s tuned and done needs some numbers on the plates. Maybe T1 for the first turbo GasGas

Very nice!!! Hey Justin, why don't you just order up a PET Tach 2100DX or similar and monitor the RPM's that way? Nice build.

Ken when are you going to race that I would absolutely love to see that thing in action Kaplan Cycles God Bless America❤

That’s amazing! 🤩🤩

Respect to your talent

Beautiful, great work Justin.. MaD as 😁. Awesome content guys as always 👍👍

My only concern is that's gonna be some smoking hot oil being directed right onto the clutch. That being said, you are limited where you can return on that engine without going fully into the case. Looks pretty tight, really excited to see the numbers.

Your the Man 👍 Justin

Outstanding!!

Insane workmanship. putting it together while keeping the aesthetics of the machine must have had a lot of thought put into it. The only way this could be any better is if the turbo were on a CR500. A CR500 would handle 80+hp all day long without a ton of maintenance.

Wow! 25 Yrs old-With a Speed passion too make Stuff like that--Scary! In a great way. Thanx.

Thanks for sharing this modern machine justin

Please do a dyno video of this bike and maybe a stock bike to compare it to

I really hope we get to see what this gasgas does! Braap!

What’s up kap have a blessed day brother much love

those factory gasgas are sweet

Big props to Justin!!! very impressive

Would make a great supermoto

The machine was so pretty to start with

thats pretty slick... ill stick to 2 strokes :)

Dumping hot turbo oil into the clutch pack?

Finally found a four stroke i want ti ride.

Sweet machine

I’m over this, but let’s see that beautiful RM250 in the background.

What a Weapon!!! 😍💪🏼🎨

How much weight does the turbo add ?

How about calling him custom Justin,great asset to your team 👍🏻

Awesome👍🏻🇺🇸

If you wanted to ride this thing in the dirt it would be nice if you could clock the turbo up under the gas tank more so that when your legs are out cornering or sliding forward on the tank It's not in your way. Don't know how hot those things get and if it could cause fuel to boil, though. For street awesome as is, cool to see 👍

Theres a dude on KZfaq with a turbo yz450. It works really well hes actually got it squared away now. Took a while. It pulls the front wheel up in 5th gear like a stock bike in 1st. He has a supermoto set up on it but hey, its still a yz450.

Awesome. Mr. Turbo. Loop out larry. Wizard. Kaplan america, manic mechanic. Jimmy. Love all the characters in your show. 👍

How much more power? 😊

Yeah. That is badass.

Listen gentlemen, this is absolutely badass; but I gotta know..... turbo 700!

We need the video on the Dyno and tuning the world needs it keep up the amazing work guys much love from 🇨🇦 🦾

Will that void the warranty?

Awesome bike!!!

So awesome

Street sweeper has a sike turbo yz450f making over 100hp

He is not a mechanic, dude is an engineer. This is sick

Ken... the betas prettier lol... but great job on the turbo! Very clean work.

The Street Sweeper channel's yz450 turbo made 100hp a couple of years ago, he is going for 150hp these days! Isn't as clean as yours tho! Sick!

Would be bad. A Super Moto Racer bike!

I’ve been working on a aprillia 550 rxv turbo build.

Sssttttuuuuuuu nice 🇺🇸

Great bike

I’d love to build and ride a bike like that

Just awesome

That’s a bad ass gas gas

More Power the beast, hold on tight or it will buck you off the back. Cheers

Maybe build a Atk rotax motor 600

like to see an smcr with that set up

What a cool bike

That factory edition IS the sexiest bike available right now! If you can kit that thing, the snowbike world will eat those up!

Turbo everything.

HOLY that is cool!