TURBO CHARGED STARK KILLER 2024.5 GASGAS 450 MC FACTORY EDITION 2024 2025 

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!

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!

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

Can't wait to see it on the dyno!

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 👍

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

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

You absolute mad men, I love it 👍

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

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.

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

Finally found a four stroke i want ti ride.

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

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.

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.

Keep snowbikes in mind. Highly interested.

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

Turbo MX Bike! 😮

Thats almost as wild as my wife !😮😅

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

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

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!

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

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

so sick! a 450 with a turbo is a dream

That’s a bad ass gas gas

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

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!!!

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

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

Would make a great supermoto

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

Thanks for doing your part to make electric shit obsolete

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

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, 👍👌🤙👏😁💯😎✌

Needs a larger intake plenum for the single cylinder turbo.

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 !

Theres a dude on RU-vid 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.

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!!!

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.

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

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.

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

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

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🤟🤟🤟

The raffle 125 goes faster than I can handle.

Your the Man 👍 Justin

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

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

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.

Love it! Great work

You guys should do a video about that guys turbocharged bikes! Hes got 9 of them? I wanna see those lol

Respect to your talent

Better put a "roll bar" on the turbo prior to hill climbing.

those factory gasgas are sweet

I wouldnt ride it on the track, but i would be a menace on the streets and state park trails 😂

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

What a Weapon!!! 😍💪🏼🎨

Big props to Justin!!! very impressive

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 👍

Yeah. That is badass.

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

Growing up in the 70,s and 80,s riding most every bike made, Never did I think I would see a turbo charged motocross bike. We could pick up a cheap used bike for a couple hundred dollars. Boom 2024 your lucky to pick up a used bike for $2000 needing a total rebuild.

I respect you for trying

A lot of work, my respect

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

Outstanding!!

Get jr out there to bench press it

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

Nice man! Let’s race it against the electric bike! Lol

Can you do a CR500 Turbo ?

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

Just awesome

Awesome bike!!!

like to see an smcr with that set up

Amazing job guys. Super cleaning system and pretty bike

What a cool bike

🐝🏁 Nice and fast👌 great Job Justin 👍

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

The machine was so pretty to start with

Sssttttuuuuuuu nice 🇺🇸

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

So sick just amazing. One of a kind.

This showed up on my playlist. Initially thought it was from 04/01 - April Fools Day. Nope, it's Kaplan Cycles as FJB would say 'No Joke'.

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

Street sweeper has a sike turbo yz450f making over 100hp

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

So awesome

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

Would be bad. A Super Moto Racer bike!

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

Maybe build a Atk rotax motor 600

That’s amazing! 🤩🤩

Put Barcia on it. Let’s see what it can do around a super cross or outdoor track

How much more power? 😊

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