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2-Stroke Muffler Exhaust Pipe with Expansion Chamber - 1 PACK | Angled Design with Pipe Gasket, Compatible with 47/49cc CAG Daytona Pocket Bikes, Kids Mini Dirt Bike, Easy to Install

  • Based on 474 reviews
Condition: New
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Availability: 19 left in stock
Fulfilled by Amazon

Arrives Wednesday, Jul 29
Order within 1 hour and 49 minutes
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Features

  • Less Noise, More Power - Expertly designed with a rear expansion chamber, this 2-stroke 47/49cc pocket bike exhaust can help lower noise while at the same time giving pocket bikes a power boost.
  • For Pocket Rockets & Mini Dirt Bikes - This mini bike muffler is crafted to perfectly fit 2-stroke 47cc/49cc engine pocket bikes. It can also be installed on various kids' dirt bike models.
  • Designed For Easy Installation - The bent or angled design makes installation easier. Aside from screws, it also comes with a gasket for seamless connection and a bracket for enhanced stability.
  • Superb Heatproof Coating - The exterior is finished with premium paint that stands well against high temperatures. The paint won't easily peel off so your dirt bike exhaust looks like new for longer.
  • Zero-Risk Purchase - We're confident that you'll love the performance of our gas bike exhaust. If not, get in touch with us to avail of our 1-year replacement warrantyno questions asked.

Description

For years, WEIYINGSI has been developing and supplying an array of aftermarket spare parts for its customers around the world. Born out of a love of adventure and passion for power sports, it will always be committed to producing products that deliver quality, performance, and an awesome riding experience. Fits 47cc/49cc 2-stroke engines. Designed with a traditional expansion chamber for increased speed and power. Featuring an optimized angled design for easy installation and better fit. Engineered for precise connection with accurate hole locations. Comes with an additional bracket for enhanced stability during installation. Pipe gasket and 3 screws included in the package. Reduces engine noise while still producing excellent sound. Exhaust pipes can get hot during and after use. Enjoy less noise and more power with the WEIYINGSI MUFFLER. Provide a good experience for brave motorcycle enthusiasts, looking forward to your joining WEIYINGSI is concerned with the design, development and production of aftermarket parts for motorcycle. WEIYINGSI considers more on safety and practicability, pursuing to let all users enjoy the reliable products Providing an exceptional driving experience to our customers around the world

Brand: WEIYINGSI


Material: Alloy Steel


Vehicle Service Type: ATV, Scooter


Item Weight: 0.91 kg


Shape: Round


Item Weight: 0.91 kg


Outlet Connection Size: 39 millimeters


Compatible with Vehicle Type: ATV, Scooter


Material Type: Alloy Steel


Shape: Round


Brand Name: WEIYINGSI


Manufacturer Part Number: EN18


UPC: 787894799783 787894799868


Manufacturer: Wingsmoto


Unit Count: 1 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Nice for the price
5 stars for the price. How well it fits depends on how good you at bending with a torch. Will need some deburring at the flange. Fits my 36v/50cc mototec conversion perfectly
Reviewed in the United States on September 10, 2025 by SG

  • Great Replacement for Pocket Bikes
This is a solid replacement for the stock pocket bike exhaust. Installation is easy and we were able to do it without having to disassemble the bike! And that was a first. I usually have to remove the faring and gas tank or the fork. It comes with gasket and hardware, but did not include lock washers, which are critical for preventing the screws from backing out from engine vibration. ... show more
Reviewed in the United States on April 30, 2025 by J. Hewlett

  • It works on my super scooter
It improved midrange power but I lost some top end. That said I’m very pleased with the results. Just be aware that this is loud so take that into consideration you don’t want to piss off the neighbors. About the super scooter it started out as a Razor metro Eco-smart. I replaced the 500 watt electric motor with a 47.2cc motor. I installed a 450 watt electric motor on the front. It’s a 2 wheel drive hybrid now. I changed the drum brake to a 180mm disc and added rim brakes. For comfort I added front suspension, suspension seat post and a comfortable leather seat. I’m 6’1” 175 pounds and this thing will do 20 mph going up an incline. ... show more
Reviewed in the United States on October 2, 2023 by Charles W

  • Cheaply made and no customer service
This project was perfect
Reviewed in the United States on March 25, 2025 by Amazon Customer

  • Welds are busted
Was broken from the time I opened it. all welds are splitting and are not even good welds. Would not recommend buying at all. also it did not fit product specifications.
Reviewed in the United States on December 8, 2024 by Bike guy

  • The exhaust pipe is a little bent
Is little bent
Reviewed in the United States on November 19, 2025 by Chandler goodrich

  • Excellent improvements
Nice quality, increased mid and top end significantly. For the price you cannot beat it.
Reviewed in the United States on September 18, 2025 by Aaron

  • Almost correct fit
Great exhaust system for small performance engines. I used this on my 52/49cc (you never know with the cheap Chinese ones) engine swapped pocket bike. I put the engine I used in the review pictures. This exhaust system for almost perfectly after cutting the hanger off of it and this bike is very very small so that’s impressive. As you can tell by the custom engine mounts, I’m no welder or mechanic. So I could have made it fit with some more “custom” work but it is almost all the way on, very very minor exhaust leak. Build quality has been good so far, will update if that changes ... show more
Reviewed in the United States on June 14, 2021 by Ani

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