Top 12 Best Grom Exhaust That Will Boost Your Ride Now

A common issue with low-quality exhausts for the Honda Grom is poor fitment that leads to rattling or leaks, which can quickly make rides uncomfortable and inefficient. Finding the best grom exhaust can solve this by providing a system designed specifically to match the bike’s compact frame and engine layout.

The right exhaust minimizes noise while improving airflow, avoiding the drone that cheap alternatives often produce.

Durability is crucial, so materials like stainless steel or titanium are preferred for their resistance to corrosion and heat. Proper size and design keep the exhaust light yet effective, typically staying under a certain length to avoid clearance problems. Power gains come mainly from improved flow rather than drastic changes, and a good exhaust also allows for easy cleaning and maintenance to prevent buildup and performance drops over time.

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Our Selected Top 12 Grom Exhaust Picks for Every Need

This list includes a variety of grom exhaust systems that boost both performance and style. Each review covers how the exhaust performs, the type of rider it best suits, and highlights key advantages and potential drawbacks to help you make an informed choice.

1. Grom 125 Full Exhaust System Slip-On Muffler

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Bobcatz Grom 125 Full Exhaust System Slip-On Muffler offers a complete exhaust setup tailored for the Grom 125cc bike, focusing on improved performance with a lightweight carbon fiber style muffler. Best for riders wanting a direct upgrade that fits perfectly and looks sporty.

Installation comes with all necessary mounting hardware, making the swap straightforward without extra parts. The full system replaces the stock exhaust, cutting down on weight and giving an aggressive feel. Daily rides benefit from a noticeable change in sound and response, thanks to how well the header pipe and muffler are designed to work together.

The exhaust delivers on boosting performance and shedding weight compared to the original setup. Build quality is decent, with a smooth carbon fiber style finish adding style. Most praise highlights the fit and the upgraded sound, while the main complaint centers on occasional fitment tweaks needed during install.

The most frequent compliment regards how well the exhaust fits the Grom 125 and improves sound, enhancing the bike’s character. The main issue lies in occasional alignment tweaks needed for the install, which can catch some off guard despite complete hardware being supplied.

Riders wanting a tailored, stylish upgrade that trims weight and lifts performance will appreciate this system. Those looking for an exhaust without any installation fiddling or with extra components beyond the muffler might want to explore alternatives.

Pros

  • Complete kit with header, muffler, and hardware
  • Carbon fiber style finish looks sporty
  • Designed specifically for Grom 125cc bike
  • Lightweight setup improves riding experience

Cons

  • Fit may require minor adjustments during install
  • Only includes muffler component explicitly
SpecificationDetails
Brand NameGeneric
Manufacturer Part NumberHg125-cfsys-001
ManufacturerBobcatz
Included ComponentsMuffler
Model NumberExh-grom125-cf

2. Carbon Fiber Motorcycle Exhaust Muffler

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Swapping out your muffler for this carbon fiber and aluminum exhaust creates a noticeable difference in sound without overwhelming volume. Ideal for street and sport motorcycles or scooters, it’s perfect for riders who want that deep, throaty rumble without feeling like they’re shouting down the road. Its key strength lies in balancing sound and quality materials.

Installing is straightforward thanks to the 51mm slip-on connection, fitting exhaust pipes between 38 and 51mm in diameter. The removable DB killer lets you adjust the sound to your liking right from the start.

Daily rides remain smooth, and the lightweight aluminum body keeps handling nimble. You get solid durability without extra weight slowing you down or complicating maintenance.

Performance-wise, the muffler delivers a satisfying deep tone that adds character without being too loud or harsh. Its build combines aluminum with a stainless steel connector, making it tough and lightweight, though some may wish for a slightly louder note.

The biggest praise is about its sound quality, while minor grumbles appear over sound adjustment preferences.

The muffler’s strongest praise focuses on delivering a rich, deep sound that isn’t harsh or overly loud. Most users appreciate the removable DB killer for customizing sound, while the common complaint revolves around it not being loud enough for those seeking a more aggressive tone.

This muffler suits riders wanting a balance of sound quality and lightweight build on street or sport bikes with compatible pipe sizes. Those looking for louder or more aggressive sound profiles should look at alternatives better suited for higher noise output.

Pros

  • Deep, throaty sound without being too loud
  • Lightweight aluminum body with stainless steel connector
  • Easy slip-on installation with adjustable DB killer
  • Fits a wide range of street and sport motorcycles

Cons

  • Sound may not be loud enough for some riders
  • Limited to exhaust pipes between 38-51mm diameter
SpecificationDetails
The total length measures 365mm
Connection Type51mm Slip-on
MaterialAluminum & Stainless Steel
Applicable Models38-51mm Diameter Exhaust Pipes
Included ComponentsComes with housing
Removable DB KillerYes

3. Carbon Fiber Motorcycle Slip-On Muffler

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A lightweight carbon fiber slip-on muffler suits riders wanting improved sound and reduced weight on various bike styles. Its biggest strength lies in fitting pipe diameters from 38 mm to 51 mm with ease thanks to a clever stainless steel adapter.

Installation is straightforward because the universal adapter welds directly to pipes between 38 mm and 51 mm. Daily use reveals a sound that can be tuned by removing the DB killer, letting you adjust noise levels on the fly. The corrosion-resistant aluminum and stainless steel materials mean it holds up well outdoors without rusting.

Sound quality stands out with a rich tone, definitely louder and more aggressive than stock mufflers. The mix of aluminum and stainless steel offers durability while keeping weight down, which helps bike handling. Reviews often praise the excellent, clear exhaust note; however, some mention the fit can require fine adjustments for a perfect seal.

The muffler receives praise for producing a rich, aggressive sound that’s easily adjusted by removing the DB killer. Its universal fit and lightweight construction also stand out, though some users find the exact pipe fit tricky without minor tweaks. Corrosion resistance is a consistent positive point.

Riders wanting a louder, lightweight exhaust that fits various bike models will like this muffler. Anyone seeking a quiet or perfectly plug-and-play muffler without adjustment might look for alternatives better matched to their specific pipe size. It works well across dirt bikes, street bikes, and scooters alike.

Pros

  • Fits multiple bike types with universal adapter
  • Corrosion-resistant materials hold up well outside
  • Removable DB killer allows sound customization
  • Reduces overall weight compared to stock mufflers

Cons

  • May require precise adjustment for perfect fit
  • Sound might be louder than some riders prefer
SpecificationDetails
Brand NameLEIMO KPARTS
Model NumberCF-SO-UNI-365
Manufacturer Part NumberEM-3851
MaterialAluminum + Stainless steel with Carbon fiber finish
Compatible Pipe Diameter38 mm to 51 mm
Number of Items1

4. Grom 125 Full Exhaust System Slip-On Muffler

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Made with a full replacement system including header and mid pipe, this exhaust is designed for the Honda Grom 125. The biggest strength lies in its tailored fit, giving you a straightforward upgrade that changes your bike’s look and sound without any guesswork.

Installation comes with every piece you need, from the black muffler to the necessary mounting hardware, making setting it up on your Grom 125 pretty direct. Daily riding feels solid with no fit issues, and the slip-on style means you can swap it in and out without hassle when needed for adjustments or cleaning.

Performance is strong, delivering a noticeable improvement over stock exhaust with a deeper, more aggressive sound. Construction is reliable, featuring a black muffler that adds a visual edge. The most praised feature is the fitment that matches the Honda Grom 125 perfectly.

Some users mention the sound may be louder than expected at times.

The most common praise focuses on the exact fit and easy installation that matches the Honda Grom 125 perfectly. Some find the loudness of the muffler a bit much during daily rides and wish it were quieter.

Those wanting a complete overhaul with all parts included will be satisfied. Riders seeking a quieter or less aggressive sound may want to explore quieter options instead.

Pros

  • Fits Honda Grom 125 precisely and securely
  • Comes with all mounting hardware included
  • Stylish black muffler for a bold look
  • Full replacement from header to muffler

Cons

  • Sound louder than some might prefer
  • Brand name is Generic, not widely known
SpecificationDetails
Brand NameGeneric
Manufacturer Part NumberHg125-exh-blk-kit
ManufacturerBobcatz
Model NumberGrom125-exh-blk
Included ComponentsMuffler
Number of Items1

5. Stainless Steel Motorcycle Exhaust Muffler

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Great sound quality stands out as the biggest strength of this Stainless Steel Motorcycle Exhaust Muffler. Designed for mini bikes like the Z50 and ATC70, it fits stock or big bore setups.

Riders looking for a solid upgrade will appreciate its straightforward compatibility with common mini bike models.

Installation is quite straightforward with this exhaust muffler, as it’s made from high-quality metal material tailored to fit specific bike models. Once mounted, the muffler handles daily rides without any fuss.

Its size requires confirming the assembly dimensions before purchase, so it fits securely without needing extra modifications.

The muffler performs reliably by delivering a pleasing exhaust sound during rides. Built entirely from stainless steel, it offers durability and resistance to wear. The strongest point highlighted is its great sound quality, but the most noted downside is the short one-month warranty, which might feel limited for some.

The exhaust muffler receives praise mainly for its sound quality, enhancing the riding experience noticeably. On the downside, buyers often mention the very limited one-month warranty, which may cause hesitation regarding long-term reliability or replacements.

People with mini bikes like the Z50 or ATC70 looking for a reliable exhaust upgrade will find this suitable. Those needing a longer warranty or unsure about exact fitment might want to explore other exhaust options that offer more extended coverage or adjustable sizing.

Pros

  • Fits stock and big bore mini bike applications
  • Made from durable stainless steel material
  • Delivers a distinct and impressive exhaust sound
  • Precise fit for specific models reduces installation issues

Cons

  • Only a 1-month manufacturer warranty period
  • Require careful size confirmation before purchase
SpecificationDetails
Brand NameHTBCCHB
Manufacturer Part NumberStainless Steel Exhaust
Model Numberdk Stainless Steel Exhaust
Included Components1 x Stainless Steel Exhaust
Manufacturer Warranty Description1 month

6. Honda MSX125 Exhaust Middle Link Pipe

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Ideal for riders looking to boost their bike’s engine performance, this exhaust middle link pipe fits Honda MSX125 and XR150L models. Its biggest strength lies in improving acceleration by cutting backpressure, which makes throttle response feel smoother during daily rides.

Installation involves replacing the stock connecting pipe between the exhaust and muffler. Once set up, it helps maintain a steady exhaust flow, which you notice especially when accelerating.

The smoother throttle response contributes to a more comfortable ride whether you’re commuting around town or taking a longer road trip.

The pipe effectively reduces exhaust backpressure, helping the engine breathe better and deliver visible power gains. Built by BOENLU, it matches the quality of larger exhaust parts and is compatible with XR150L accessories.

Most users appreciate the performance improvement, though some mention that it requires fitting attention during installation to avoid leaks or rattles.

Performance gains are noticeable, with smoother throttle response and improved acceleration evident in everyday riding. Installation can be tricky and demands attention to fit details to avoid leaks or noise, according to common feedback.

Riders wanting a moderate power boost and better throttle feel will find this pipe suitable, especially when combined with other XR150L parts. Those seeking an easier install or lower maintenance might consider alternatives with a more straightforward fit.

Pros

  • Smooth exhaust flow improves throttle response
  • Compatible with XR150L accessories and other upgrades
  • Stable power increase on acceleration
  • Includes all needed installation accessories

Cons

  • Requires careful installation for proper fit
  • May develop leaks or rattles without correct setup
SpecificationDetails
Brand NameBOENLU
Manufacturer Part Numbermotorcycle muffler11
Number of Items1
Compatible ModelsXR150L
Included Components1 * Motorcycle Exhaust Pipe All necessary accessories

7. Universal Slip-On Motorcycle Muffler

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Finding an exhaust that fits well on different motorcycles and lasts long can be tricky. This slip-on muffler suits riders looking for durability and sound customization without needing a complex install.

Its biggest strength is its simple setup combined with a removable DB killer for sound control.

Installation is straightforward and quick, thanks to the included mounting clamp, spring puller, and fixed ring. Most riders can swap it on within five minutes, which is handy for those who want minimal downtime.

The compact length of 295mm makes it fit nicely, and its slip-on design adjusts easily between 38mm to 51mm pipe diameters, so you won’t struggle matching it up.

The muffler performs well at muffling noise with the option to dial the sound up or down by removing the DB killer. It’s made from stainless steel with high-temperature paint, which keeps corrosion at bay and makes it tough over time.

People really appreciate its durability and easy installation. Some mention that the sound can still be a bit loud without the DB killer, depending on how you like your exhaust noise.

Durability and straightforward installation stand out as top attributes, making this muffler a practical upgrade. A common note is the exhaust noise tends to be louder than expected unless the DB killer is kept in place, which can catch riders off guard.

Those who want quick, reliable upgrades for common motorcycle sizes will like the fit and function here. Riders seeking a quieter or larger exhaust system may want to look for alternatives that better suit their specific sound preferences or frame size.

Pros

  • Installation can be completed in just five minutes without any complications
  • Durable stainless steel construction
  • Customizable sound with removable DB killer
  • Fits various pipe diameters 38mm to 51mm

Cons

  • Sound may be too loud without DB killer
  • Limited length at 295mm for bigger setups
SpecificationDetails
Brand NameSporacingrts
Manufacturer Part NumberYMX3-1-MB-TP132-BK
The product has a total length of 295mm295mm
Slip-On Connection Diameter38mm to 51mm
Construction MaterialStainless Steel with High-Temperature Paint

8. Grom MSX125 Low Mount Side Exhaust Pipe

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Designed specifically for Honda Grom MSX125 models from 2013 to 2023, this low mount side exhaust pipe fits perfectly while keeping a solid and stable connection to your bike. Its main strength lies in matching the bike’s original mounting points for a secure and straightforward installation.

Installation works smoothly thanks to the exact vehicle specifications it follows, making the replacement process quick and painless. The metal construction with fine surface treatment means it handles daily rides under various weather conditions without showing much wear.

Neat edge treatment ensures the pipe looks clean and consistent next to your bike’s body, blending in rather than standing out awkwardly.

Performance-wise, the exhaust pipe stays reliably stable on the reserved space and helps maintain proper backpressure thanks to the included baffle. It’s solidly built with metal that doesn’t just look good but resists outdoor elements well. The metal surface finish is tough but the biggest complaint is that it’s a generic brand, so some might have concerns about long-term durability or name recognition.

Reviews praise the reliable fit and sturdy metal finish that withstand daily use and varied weather. On the downside, the generic brand label makes some wary about how well it holds up long term.

Those who want a straightforward replacement matching their Grom MSX125’s specs will be satisfied here. Riders seeking a branded or customizable exhaust might want to consider other options.

Pros

  • Fits perfectly with reserved mounting points
  • Durable metal material with surface treatment
  • Stable connection ensuring secure installation
  • Includes baffle for controlled exhaust flow

Cons

  • Generic brand may concern some buyers
  • Limited to specific bike models only
SpecificationDetails
FitmentHonda Grom MSX125 2013-2023
MaterialMetal with fine surface treatment
MountingMatches standard vehicle mounting dimensions
Item HighlightLow Mount Side Exhaust Pipe With Baffle
Manufacturer Part NumberCCBXDEXAA-D21FC2D5

9. Grom MSX125 Exhaust Muffler

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Riders with a 2012-2015 GROM MSX125 looking for a straightforward upgrade will appreciate the Grom MSX125 Exhaust Muffler. It stands out by delivering smoother exhaust flow that can make your daily rides feel noticeably better without complicated installation.

Installation comes as a full system slip-on including the header pipe, mid pipe, muffler canister, and mounting hardware. You just replace the original parts directly, which simplifies setup.

On day-to-day rides, it keeps a consistent flow and feels reliable, making it easy to enjoy the bike’s upgraded sound and response.

The muffler improves exhaust performance by smoothing the flow and increasing power potential, which is the product’s main strength. Constructed with all necessary parts included, the build is practical and solid for the price. Praise often highlights how well it fits and improves ride quality.

Some mention the 2-month warranty as a drawback, offering limited coverage.

The smooth exhaust flow and improved power are frequently praised, with users noticing better ride feel. A common complaint relates to the limited 2-month manufacturer warranty, which feels short for a costly part.

Ideal for riders looking for a reliable and simple system replacement that improves performance without any hassle. Those looking for a significant sound change or longer warranty might prefer more premium options elsewhere.

Pros

  • Direct replacement fit for GROM MSX125 models
  • Includes all necessary parts for full system upgrade
  • Smoother exhaust flow improves power delivery
  • Offers a practical upgrade for daily riding

Cons

  • Manufacturer warranty only covers 2 months
  • May not dramatically change sound or weight
SpecificationDetails
CompatibilityGROM, MSX 125 (2012-2015)
Included ComponentsExhaust Header Pipe, Mid Pipe, Mounting Bracket, Mounting Hardware, Muffler Canister
Manufacturer Part Number30072026RLA
Brand Name3TVol
Model Number30072026RLA
Manufacturer Warranty2 month

10. Universal Hexagon Slip-On Exhaust Muffler

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Designed to fit a wide range of bikes, the Universal Hexagon Slip-On Exhaust Muffler works well for dirt bikes, street bikes, scooters, and ATVs with pipe diameters between 38mm and 51mm. Its biggest strength lies in its versatility, allowing use on many different bike types without needing a custom fit.

Installation requires basic mechanical skills since it comes with hardware but no instructions. The muffler measures 390mm in length, fitting easily onto pipes within the specified diameter range. Day-to-day use isn’t complicated, as it stays securely mounted and doesn’t add much bulk to the bike’s setup.

Performance is solid, providing reliable exhaust flow with a universal design that suits multiple engine types. The build quality meets expectations for a slip-on muffler, offering decent durability and a hexagonal shape that stands out.

Most praise highlights the easy fit for various bikes, while a common complaint is the lack of installation instructions.

The strongest praise focuses on the muffler’s ability to fit various bike pipe sizes easily, making it a flexible option for many riders. The most frequent issue noted is the absence of instructions, which can make installation a bit tricky without prior experience.

Those who want a basic, adaptable muffler without the need for special modifications will appreciate this product. Riders seeking detailed guidance during setup or requiring a model tailored to a very specific bike might want to consider other options.

Pros

  • Fits multiple bike types and pipe sizes
  • Comes with mounting hardware included
  • Compact length at 390mm
  • Simple, universal design

Cons

  • No installation instructions included
  • May require adjustment for perfect fit
SpecificationDetails
Length390mm
Connection Diameter38mm-51mm
Brand NameFast Pro
Manufacturer Part NumberF17130008
Model NumberF17130008

11. Universal Slip-On Motorcycle Exhaust Muffler

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Hazawa’s Universal Slip-On Motorcycle Exhaust Muffler stands out for its versatile fit and adjustable sound, making it ideal for riders looking to upgrade their bike’s exhaust without bulky parts. It suits motorcycles with pipe diameters between 38mm and 51mm and works well for those wanting a sportier look and customizable noise levels.

Setup is straightforward thanks to the slip-on design and included reducer adapter, which helps fit various mid-pipe sizes securely. The removable DB killer is useful, letting you switch between a quieter, smoother sound and a deeper, more aggressive note depending on your mood or riding environment. Its carbon fiber-style shell keeps the look modern without being heavy or oversized.

Performance delivers a noticeably richer exhaust tone when the DB killer is removed, and it carries a solid build with stainless steel connectors backing the carbon fiber-style finish. The best complaint is the sound sometimes being louder than expected without the DB killer in. The most common praise highlights the exact fit and ease of installation on many bike brands.

The exhaust receives strong praise for how perfectly it fits various pipes and how easy it is to install with the included adapter. Users most often mention that the exhaust can get unexpectedly loud when the DB killer is removed, affecting comfort in some situations.

Riders wanting a simple upgrade with a choice between quiet or louder exhaust sounds will find this muffler suitable. Those who need an exact fit or prefer a quieter ride without adjustment might want to explore other options before buying.

Pros

  • Adjustable sound with removable DB killer
  • Narrow fit range covers many motorcycles
  • Carbon fiber-style design with a modern, streamlined look
  • Includes reducer adapter for secure installation

Cons

  • Sound can be louder than expected without DB killer
  • Fit requires precise pipe diameter measurement
SpecificationDetails
Brand NameHAZAWA
Universal Fitment38–51MM exhaust pipe diameter
Removable DB KillerYes, for adjustable sound
MaterialCarbon fiber-style outer shell, stainless steel connector
Included ComponentsHousing
Manufacturer Warranty1 year

12. Universal Slip-On Motorcycle Exhaust Muffler

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Running a grom with the Universal Slip-On Motorcycle Exhaust Muffler brings a fresh, deeper tone without being annoyingly loud. It fits a variety of smaller street and sport bikes, making it a great choice for riders who want a cooler sound and a vibrant look right out of the box. Its biggest strength lies in balancing style with a manageable noise level.

Installation is straightforward thanks to its fit for pipes between 38 and 51mm. Switching it on daily keeps things interesting, especially with the removable DB killer that lets you adjust the sound depth as you like. The stainless steel material handles weather wear well, and the colorful gradient finish initially grabs attention, looking just as good after regular rides.

Performance delivers a noticeably deeper and quieter sound with the DB killer in place, suitable for smaller engines. Taking it off sharpens the tone for bigger displacements.

Vivid color and sturdy stainless steel construction stand out, while a few mention the exhaust can get louder than expected once modified. Durability seems solid with no complaints about rust or corrosion so far.

The muffler is praised for delivering a deeper and quieter sound with the DB killer in place while some users find it too loud once removed. Its durable stainless steel build and vibrant finish also get positive attention. Adjusting sound is a simple way to tune your ride’s personality.

Riders wanting a noticeable sound upgrade without excess noise will appreciate this exhaust. Those needing an exact fit every time on less common bikes or wanting whisper-quiet performance should explore other options.

Pros

  • Fits various street and sport motorcycles easily
  • Deeper sound with DB killer installed
  • Durable stainless steel resists rust
  • Unique four-color gradient finish stands out

Cons

  • Can become quite loud without the DB killer
  • May not perfectly fit all bike models despite universal claim
SpecificationDetails
Fitment Diameter38-51mm for Most
MaterialStainless Steel
Sound FeatureRemovable DB killer
Design FinishFour-color gradient (red, blue, yellow, titanium)
BrandPOSENG
Manufacturer Part NumberMP-1045-J76-CS

Best Grom Exhausts Compared Side by Side

ProductBrandIncluded ComponentsItem HighlightManufacturer Warranty
Grom 125 Full Slip-OnGenericMuffler––
Carbon Fiber Exhaust MufflerPACEWALKERComes with housingStreet/Sport Motorcycles, DB Killer1
Carbon Fiber Slip-On MufflerLEIMO KPARTS–Dirt Bike, Street Bike Mufflers–
Grom 125 Full Slip-On AltGenericMuffler––
Stainless Steel Exhaust MufflerHTBCCHB1 x Stainless Steel Exhaust–1 month
Honda MSX125 Mid Link PipeBOENLU1 Motorcycle Exhaust PipeCompatible with XR150L–
Universal Slip-On MufflerSporacingrts–––
Grom MSX125 Low Mount ExhaustGeneric–Low Mount Side Exhaust Pipe–
Grom MSX125 Exhaust Muffler3TVolExhaust Header, Bracket, Hardware, MufflerMuffler Middle Connect Full System–
Universal Hexagon Slip-On MufflerFast Pro–––
Universal Slip-On Exhaust 1HAZAWAComes with housing–1
Universal Slip-On Exhaust 2POSENG–––
1. Grom 125 Full Slip-On
  • BrandGeneric
  • Included ComponentsMuffler
  • Item Highlight–
  • Manufacturer Warranty–
2. Carbon Fiber Exhaust Muffler
  • BrandPACEWALKER
  • Included ComponentsComes with housing
  • Item HighlightStreet/Sport Motorcycles, DB Killer
  • Manufacturer Warranty1
3. Carbon Fiber Slip-On Muffler
  • BrandLEIMO KPARTS
  • Included Components–
  • Item HighlightDirt Bike, Street Bike Mufflers
  • Manufacturer Warranty–
4. Grom 125 Full Slip-On Alt
  • BrandGeneric
  • Included ComponentsMuffler
  • Item Highlight–
  • Manufacturer Warranty–
5. Stainless Steel Exhaust Muffler
  • BrandHTBCCHB
  • Included Components1 x Stainless Steel Exhaust
  • Item Highlight–
  • Manufacturer Warranty1 month
6. Honda MSX125 Mid Link Pipe
  • BrandBOENLU
  • Included Components1 Motorcycle Exhaust Pipe
  • Item HighlightCompatible with XR150L
  • Manufacturer Warranty–
7. Universal Slip-On Muffler
  • BrandSporacingrts
  • Included Components–
  • Item Highlight–
  • Manufacturer Warranty–
8. Grom MSX125 Low Mount Exhaust
  • BrandGeneric
  • Included Components–
  • Item HighlightLow Mount Side Exhaust Pipe
  • Manufacturer Warranty–
9. Grom MSX125 Exhaust Muffler
  • Brand3TVol
  • Included ComponentsExhaust Header, Bracket, Hardware, Muffler
  • Item HighlightMuffler Middle Connect Full System
  • Manufacturer Warranty–
10. Universal Hexagon Slip-On Muffler
  • BrandFast Pro
  • Included Components–
  • Item Highlight–
  • Manufacturer Warranty–
11. Universal Slip-On Exhaust 1
  • BrandHAZAWA
  • Included ComponentsComes with housing
  • Item Highlight–
  • Manufacturer Warranty1
12. Universal Slip-On Exhaust 2
  • BrandPOSENG
  • Included Components–
  • Item Highlight–
  • Manufacturer Warranty–

How to Choose the Right Grom Exhaust

Choosing the right grom exhaust depends on factors like material quality, fitment, and sound level, which ensure better performance and durability. Paying attention to these details helps avoid costly replacements and installation issues, saving time and money in the long run.

Compatibility and Fit

A common mistake when swapping out the exhaust is grabbing one that doesn’t quite fit the year of the Grom being worked on. Not all models have identical mounting points or frame layouts, so the fit might be off. This mismatch makes installation harder, often meaning tweaks or even buying extra brackets or clamps.

Good exhausts designed specifically for each Grom model year line up exactly with the bike’s existing mounts, which keeps the installation straightforward and stable. The fit matters a lot for preventing vibrations and keeping the exhaust firmly attached during rides.

Always check the product description or packaging for compatible year ranges and verify if any additional hardware is needed.

Performance Impact

Swapping an aftermarket exhaust can noticeably affect how the engine behaves, particularly in power delivery and throttle response. An exhaust system that improves flow and reduces backpressure allows the engine to breathe better, often making acceleration feel sharper and breathier.

Backpressure balance is key. Too little backpressure might cause a loss of low-end torque, while too much chokes the top-end power.

The best setups keep that balance. Some systems also affect fuel consumption because the engine’s tuning may change with new flow dynamics, so expect minor fluctuations there.

Material Quality and Durability

Exhausts exposed to heat and weather need to resist corrosion. Stainless steel and titanium are common materials that hold up well compared to cheaper steel prone to rust. Titanium weighs less, too, but usually costs more.

Checking the welds and finish offers clues about durability. Clean, uniform welds mean less chance of cracks or failure over time. A proper finish protects against surface damage and rust, which means less maintenance and a longer-lasting system.

Sound Level and Tone

Noisy exhausts can become a nuisance or even a legal problem. It’s important to check the noise output listed by the manufacturer and compare it to local regulations.

Some exhausts come louder than stock, which may not be ideal for street use.

The sound tone varies between systems: some produce a deep, throaty rumble while others have a higher-pitched bark. Removable baffles or built-in noise reduction features let riders adjust the sound level and character, offering more control for different riding situations.

Ease of Installation and Maintenance

Exhaust systems that include clear instructions and all necessary mounting hardware save a lot of frustration during installation. Some require professional help, but easier installs can be done at home with basic tools.

Regular cleaning and inspections are important since soot and road grime accumulate quickly. Systems designed with accessible components or simple bolt-ons make maintenance less of a chore.

Complex designs with hidden fasteners slow down upkeep and increase the chance of overlooking issues.

Optimizing Performance: Installation and Tuning Tips for Grom Exhausts

Installing a Grom exhaust requires more than just swapping out the old pipe. The new exhaust often changes backpressure and airflow, so tuning the fuel injection or carburetor is essential to keep the engine running smoothly. Without this step, the bike can run lean, causing overheating or power loss.

It’s important to follow the manufacturer’s instructions for mounting and securing the exhaust. Loose fittings can lead to vibrations or exhaust leaks.

Also, check for clearance from the frame and swingarm to prevent damage during riding.

Tips for Installation and Tuning:

  • Use a torque wrench to tighten bolts to the recommended specs.
  • Adjust the fuel mapping or jet size to match the new exhaust flow.
  • Test ride and monitor engine temperature and responsiveness.
  • Consider a professional dyno tune for the best results if modifications are significant.

Maintaining Your Grom Exhaust: Cleaning and Longevity Best Practices

Regular cleaning extends the life of a Grom exhaust by preventing corrosion and maintaining appearance. Use a mild detergent and water to remove dirt and grime. Avoid harsh chemicals that can damage the exhaust coating or stainless steel surface.

Inspect the exhaust joints and mounting points routinely for signs of rust or fatigue. Applying high-temperature anti-seize on bolts can prevent them from seizing up over time, making future removal easier.

Maintenance Best Practices:

  • Clean the exhaust after rides in wet or salty conditions to prevent rust.
  • Check for cracks or dents that may need prompt repair.
  • Apply a protective coating or polish designed for metal surfaces to keep the finish looking good.
  • Replace worn-out gaskets and clamps as needed to maintain a proper seal.

Common Mistakes to Avoid When Upgrading Your Grom Exhaust System

One common mistake is neglecting the fuel system adjustment after installing a new exhaust, which can lead to poor engine performance and damage. Skipping this step compromises efficiency and power delivery.

Another error involves choosing an exhaust that doesn’t physically fit or matches poorly with the bike’s setup. This can result in clearance issues or insecure mounting, increasing the risk of damage while riding.

Some riders also overlook the importance of heat shielding. Without proper protection, heat from the exhaust can cause burns or damage nearby components.

Avoid These Issues:

  • Do not ignore tuning needs post-exhaust replacement.
  • Measure thoroughly before purchase to ensure compatibility.
  • Install heat shields where recommended to protect bodywork and cables.
  • Verify and retorque all fasteners after a few rides.

People Also Asked

How Do I Choose the Right Size Grom Exhaust?

Choose a grom exhaust that matches your bike’s engine size and intended riding style. Check compatibility with your specific model year to avoid fitment issues and keep an eye on exhaust diameter to ensure optimal airflow and performance.

What Is the Average Lifespan of a Grom Exhaust System?

A grom exhaust system typically lasts around 3 to 5 years with regular use. Lifespan depends on how often you ride and maintenance habits, especially how well you protect it from rust and damage.

Are There Safety Concerns When Installing a Grom Exhaust?

Safety concerns include making sure the exhaust is securely mounted and does not interfere with moving parts or rider controls. Improper installation may cause burns or damage to wiring, so professional help is advisable if unsure.

How Do I Properly Maintain and Clean My Grom Exhaust?

To maintain a grom exhaust, clean it regularly with mild soap and water, avoiding abrasive materials that scratch the surface. Inspect for leaks or cracks after cleaning and during routine checks to catch early signs of wear.

What Common Problems Should I Watch for with Grom Exhausts?

Common issues include rattling noises from loose mounting bolts and corrosion on headers or mufflers. Pay attention to decreased performance or unusual noises, which could indicate exhaust leaks or internal damage.

Conclusion

Choosing the best exhaust for a Grom comes down to sound, weight, and fit. Sound affects how much you’ll enjoy the ride and how noticeable you’ll be to others.

Weight matters because a lighter exhaust can improve handling. Fit is crucial so installation is straightforward and the exhaust clears all parts without modifications.

Consider your budget and the size of the exhaust relative to your bike’s frame and parking space. Riding every day means durability is an important factor to consider. Check the comparison table and detailed reviews above to match these points with your priorities before making a decision.

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