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428 Concepts

@428concepts

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▪️Custom Exhaust
▪️Cerakote
▪️Custom Fab / Prototyping
▪️3D Scanning
▪️Shipping Available Worldwide
▪️Call or Text: 618-606-5684

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Our customer came to us looking for a custom cone pipe for his 1980 RM 125 chassis with a 1982 PE 175 motor, so you know we had to work our magic! This system came out beautiful, while also giving the bike better mid to high end power as he will be using this for enduros, and moto. 🏁

The 3 piece design makes installation alot easier as our tolerances were a lot tighter with the adjusted airbox.

Pics of the full build will be up this weekend! 🔥 taken in Illinois by @428concepts

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2 months ago

Beyond excited to be releasing our line of Titanium Trials pipes! We have been playing around with this design for the 02- Current TXT 300 for a while, and have finally found the set up we are happy with releasing to the public! This lightweight upgrade not only tops the charts for look, but performs even better by giving the engine more power from bottom to top, while also being smooth at low RPM, and quick to rev. We offer these in the short header, and long header style depending on your bikes power preferences.

100% back purged and made right here in the U.S.A.🇺🇸 We are seeking for other bikes to offer these to the riders outside of 02 - Current Gas Gas guys. Feel free to reach out with any questions, or concerns on these systems!

All made from materials bought from our guys over @racetechtitanium , they are your go to for all Titanium fasteners, and materials!

428 Concepts, built for racers, by racers.🏁 taken in Illinois by @428concepts

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10 months ago

We were lucky enough to have this beautiful 1976 Ossa Phantom GP2 250 in the shop for a pipe. This system is a full one piece design with a welded on silencer. The condition of this bike is amazing, and is also a race bike!

Our handcrafted pipes are fully TIG welded, and fully built in house, ensuring not only a top quality pipe, but also a long lasting, strong, performance pipe.

From custom one off systems, to custom silencers, 428 Concepts has you covered! Contact us at (618) 606 - 5684 for any of your exhaust needs or inquiry’s, we would love to help out! by @428concepts

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a year ago

2026/2027 @gtarenacross roster is set! 📈

Welcoming back no stranger to the series, Cedar Rapids IA native, @bmclaud104!

New to the program we are also welcoming Marion IA native, @caydenleidigh25!

These guys will be competing aboard McGrath Powersports backed Hondas! We can’t wait to show what we have cooking up with @blackdiamondmx!

Looking forward to a fun season, we will see you at the races!💪

#arenacross #axonfox #fs1 #gtarenacross taken in RaceTech Titanium by @428concepts

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9 days ago

Blowin the cob webs out of this 85’ CR 250.⚔️ Should we bust this puppy out for the @ridelincolntrail @vurbmoto 500?🤔
🎥: @aaron_nigglii

@428concepts
@twisted.team
@1stphorm
@route15cycles taken in Splinter Creek Dirt Riders by @428concepts

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a month ago

1980-81 KX 125 chamber fresh off the fab table.🏁🔥 taken in Illinois by @428concepts

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a month ago

Coming off of a long weekend of racing in the hills of Sequatchie Tennessee at the @tkoenduro , now it’s time to get back into the shop and start throwing some sparks.🏁 taken in Sequatchie, Tennessee by @428concepts

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a month ago

The ultimate woods weapon.⚔️ The last step of this PE swapped RM was the pipe and we couldn’t be more happy to be the ones to take care of the job. This bikes buttoned up and ready to go racing.🏁

For pipe inquiries, please email us at: sales428concepts@gmail.com taken in Illinois by @428concepts

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2 months ago

Fresh run of Hodaka pipes heading out the door.🏁 by @428concepts

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2 months ago

The RocketShip Racing fleet is one you can’t deny. 🔥

All 3 of these race units are running our RocketShip Factory pipes. by @428concepts

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2 months ago

Whos ready for the @vurbmoto 500 East at @ridelincolntrail?! 🙋‍♂️ by @428concepts

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3 months ago

Check out this brushed Titanium slip-on we did for our XG750 Flat Track guys. We set this one up to be easily disassembled to test different inserts and cores on the dyno. We’ve gotten some killer numbers on our headers, and are ready to see what we can get playing with some newly designed internals.

These silencers can be ran on a multitude of bikes, but was designed around the Harley’s motor characteristics.

Materials purchased straight from our guys @racetechtitanium ! These guys are my go to for all of my Titanium needs, from fasteners, to materials, they have it all! taken in Edwardsville, Illinois by @428concepts

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3 months ago