About quality and texture, I can confirm that the quality is great and that the material used is stainless steel for the pipe and stainless steel for the muffler, all surfaces come with a polished finish. About the feeling of use, The styling of the muffler was what sold me on the product and I am not disappointed with the exhaust sound either. A positive experience from making the purchase thru to using it on the bike. Products to buy together, This exhaust has also improved the appearance of the bike so a fender eliminator to allow the removal of the next ugly part would be ideal to also add to your cart. Difficulty of installation, I can say the fitment of the exhaust system was very easy due to the small number of mounting points for the exhaust and the easy acess to these mounting points on the bike. Everything from the muffler mount to the exhaust port mount lined up perfectly. Cost performance and comparison with other products, The pricing of the product was great. You receive a full exhaust system that is made using high quality materials and has high quality surface finishes. About shipping and packaging, My order was shipped within 24 hours of the product being in stock and I received a few emails advising me of the status up until the order was dispatched. The order arrived within the estimated date range and was extremely well packaged. I found the link supplied to track my order very useful while I was waiting for the order to land in the country. Any concerns, cautions, or advice when purchasing, I have no concerns or cautions when purchasing from Webike. I cannot recommend Webike enough for the majority of your biking needs. They not only sell aftermarket parts and bike gear but also OEM parts for your repairs and servicing needs.
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263.98 USD (40,296 JPY) 305.87 USD Save 14%
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Product detail
[Material]
・Silencer: Stainless steel
・Pipe: Stainless steel
[Weight] 2.2kg (Stock: 4.9kg)
[Volume] Proximity exhaust noise: 86dB
[Specification] Government certified exhaust (for vehicle inspection)
[Maintenance Data]
・Removing and installing the oil drain bolt: ○
・Change oil filter: ○
・Whether center stand can be used or not: -
ZERO exhaust system with legitimate silencer!
ZERO exhaust is a high quality exhaust system equipped with an orthodox silencer of cylindrical shape, which Moriwaki has been manufacturing and selling since 1993.
To improve the new GROM's sporty nature, this manufacturer designed more compact silencer than traditional spec.
The ZERO exhaust with the new silencer produces a powerful and massive sound that makes it hard to believe that it is a 125cc machine, and has excellent power characteristics in the mid to high speed range.
You can enjoy powerful and exhilarating riding in the scene where intermediate acceleration is required and long touring.
Not only the tone and the output characteristic, but also the good balance which is the special point of ZERO exhaust is well combined, and the safety and the durability which consider the daily maintenance and the various driving conditions, all items are balanced at a high level and developed and commercialized.
Two types of silencer colors are lined up, "ANO (Anodized Titanium) " which is known for its vivid color, and "SUS (Stainless Steel) " which is cool and based on the sparkle of the material.
Stainless steel material is used for the pipe, which is easy to maintain and strong.
In addition, the Megaphone exhaust, which produces a mild and calm bass sound that is the opposite of the Zero exhaust and has a characteristic output in the low to mid speed range, is also lined up exclusively for the 2016 GROM.
This megaphone exhaust is the opposite of the ZERO exhaust, it produces a mild and calm bass sound and has a characteristic of low to mid speed output.
・About government-approved exhausts
Moriwaki has taken the environment into consideration while maximizing engine performance.We have obtained government certification by keeping the noise and emission regulation values within the specified limits.
However, it may not be able to meet the exhaust gas regulation and the near exhaust noise regulation due to the overall reasons including the circumstances of the vehicle body such as the aged deterioration of the vehicle or the lack of proper maintenance.In this case, please review the intake and exhaust system, carburetor or injection setting.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
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Customer Reviews
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- Japan (9)
- United States (3)
- Australia (2)
- France (1)
- Philippines (1)
- Singapore (1)
- United Kingdom (1)
Fits:HONDA glom 16-20

Installed on: HONDA MSX125 (GROM)
Fits:HONDA glom 16-20

Installed on: HONDA MSX125 (GROM)
Excellent
Oct 12, 2023
My Favourite Exhaust for the Honda Grom
I am extremely impressed with the results of the Moriwaki Megaphone. I love the finish, the sound, and the quality of this exhaust.The black finish is beautiful, and it looks amazing on my bike to compliment the glossy black engine. The exhaust is perfectly made, and all the welds are clean and even.The sound of the exhaust is also amazing. It is slightly louder than the stock exhaust, but it is not as loud as say a Yoshimura RS-2. It has a deeper bassy tone that comes alive over 6000rpm. and provides a welcome bump to mid-range power. It is also significantly lighter than the stock exhaust.Overall, I am extremely happy with the Moriwaki . It is a high-quality product that looks and sounds great. I would highly recommend it to any Grom owner looking for an upgrade to their stock exhaust. But also keep the noise down compared to other aftermarket offerings.The delivery to the UK took about 8 days in total, and of course there is an import customs charge to prepare for. But it was money well spent.
View DetailFits:HONDA glom 16-20

Installed on: HONDA MSX125 (GROM)
Excellent
Jul 6, 2023
Fits a third generation Grom too
About quality and texture: I am happy with the quality of the stainless steel header pipe and polished stainless steel muffler which is finished with a unique designed end cap. About the feeling of use: Super lightweight compared to the Honda exhaust which results in a good weight saving. This exhaust system design and proportions are well suited to the Grom and it manages to generate an enjoyable exhaust note from the little 125cc motor. Products to buy together: Some form of higher flow air filter would also be desirable to purchase along side this full exhaust system, I chose to go with an open air intake from Chimera. Difficulty of installation: The process to install takes about one hour to complete. A new gasket for the forward mounting flange is recommended and modification to the rearset is needed for the third generation Grom. Not difficult to do. Cost performance and comparison with other products: Good costing as you are receiving a well designed and manufactured product using quality materials that will help increase performance but there are also other options for much less cost, so browse Webike available exhausts if you have a lower exhaust budget. About shipping and packaging: Sea frieght is my preferred method of shipping due to the lower cost and it is fantastic that it has returned as an option once again so I can put my money toward parts and not high shipping costs. Webike kept me updated on the status of my order up to when it shipped. The parcel arrived within the expected date range and was well packaged with no chance of the part being damaged. Any concerns, cautions, or advice when purchasing: A JMCA approved exhaust so it is suited for everyone that needs an exhaust to my legal specifications.
View DetailFits:HONDA glom 16-20
Excellent
Feb 8, 2021
Super exhaust, great noise, top, modification for my msx 2013, very nice model very good quality, only 10 jours from France
View DetailFits:HONDA glom 16-20
Excellent
Aug 13, 2020
Looks amazing and just a subtle increase in sound
I bought this to replace a zoom loop exhaust which was just too loud. The Moriwaki is quiet under light throttle and opens up with a perfect sound under open throttle, perfect balance. Also I noticed a significant performance boost, I think my previous exhaust didn't have proper back pressure.
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