Top 10 Best Exhaust for 2023 Honda Grom – 2026 Expert Tested
Upgrading the exhaust on your 2023 Honda Grom is one of the most rewarding mods you can make. It transforms the bike’s sound, adds a bit more power, and gives it a much more aggressive look. But with so many universal slip-on options available, finding the right one that fits properly and delivers the tone you want can be tricky. That’s why we tested dozens of exhausts and rounded up the best options specifically suited for the Grom’s 125cc engine. Whether you want a deep rumble, a sharp crackle, or just a cleaner look, we’ve got you covered.
Quick Product Comparison
Our Top 10 Best Exhaust For 2023 Honda Grom Reviews – Expert Tested & Recommended
1. Universal 1.5-2 inch Motorcycle Exhaust Silencer Muffler for Kawasaki Z650 Honda CBR500 Yamaha FZ1 Grom Dirt Bikes
This universal muffler is a fantastic entry-level upgrade for your Grom. It’s designed to fit a huge range of bikes with its 1.5-2 inch (38-51mm) inlet, making it a versatile choice. The dual-outlet design not only looks great but helps reduce weight and improve exhaust flow. It’s a straightforward slip-on that gives you a noticeable sound upgrade over stock without being overly obnoxious. For the price, it’s hard to beat if you want a simple, effective bolt-on solution.
Key Features That Stand Out
- ✓ Universal fit for most motorcycles with 38-51mm diameter exhaust pipes
- ✓ Dual-outlet design for a sporty look and weight reduction
- ✓ Includes all necessary mounting hardware and springs
- ✓ Stainless steel construction for decent corrosion resistance
- ✓ Direct bolt-on replacement with no welding required for most applications
Why We Recommend It
We recommend this muffler because it delivers exactly what it promises: a simple, affordable sound and look upgrade. It’s one of the easiest ways to make your Grom sound more like a proper motorcycle. The universal fit means you can also use it on other bikes in your garage, adding extra value. While it’s not a high-performance exhaust, the improvement in sound and aesthetics over the stock can is immediate and satisfying.
Best For
Grom owners on a tight budget who want a quick, no-fuss bolt-on that adds a deeper tone and a cleaner look without breaking the bank. It’s also perfect for riders who might need a muffler for multiple bikes.
Pros and Cons
Pros:
- Extremely affordable price point
- Easy installation with basic tools
- Aggressive sound for a small displacement engine
- Fits a wide variety of motorcycles
Cons:
- Build quality is basic (paint may burn off over time)
- Sound can be raspy at higher RPMs
- May require minor adjustments or additional clamps for a perfect seal on some bikes
Customer Reviews
Customer Review: Awesome straight pipe with some darn good sound too! Quality and price for a quick slip on, rather then the stock exhaust. Better then most brands. Also yall complain about paint🤣 peeling owell put in your own work and buy some high heat black spray donut yourself lol if u cant be hands on then why
Customer Review: This is a great little muffler for the price. I put it on my 2017 Honda Grom and it sounds so much better than stock. It’s not too loud, just a nice deep tone. Installation was straightforward, but I did need to use a rubber mallet to get it to seat properly. For under $30, you can’t go wrong.
2. Universal Slip-On Exhaust Muffler with Silencer for Motorcycle ATV Dirt Bike Street Bike Scooter 38mm-51mm Pipe Black
This muffler stands out for its solid stainless steel construction and the inclusion of a dB killer (baffle) that lets you tune the sound. It comes as a complete kit with springs, clamps, and even a connector pipe if needed. The matte black finish looks clean and understated. For a Grom, this provides a significant sound upgrade—deep, throaty, and much more noticeable than stock—while still being manageable for daily riding. It’s a great balance of price, quality, and performance.
Key Features That Stand Out
- ✓ Made of high-quality stainless steel for better heat resistance and anti-corrosion
- ✓ Includes removable dB killer/baffle for sound tuning
- ✓ Complete accessory kit (springs, clamps, connector pipe)
- ✓ Universal 38-51mm inlet fits most motorcycles with minor modifications
- ✓ Sleek matte black finish that resists fading
Why We Recommend It
We love that this exhaust gives you control over the sound. The included dB killer means you can have a quieter ride when you need it, or remove it for a more aggressive note. The stainless steel build is a step up from cheaper options, and having all the mounting hardware in the box is a huge plus. It’s a thoughtful, complete package that makes installation smoother than many competitors.
Best For
Riders who want a versatile exhaust they can tune for different situations—quiet for neighborhood rides, loud for track days. Also ideal for anyone tired of buying separate clamps and springs; this kit has everything you need.
Pros and Cons
Pros:
- Excellent sound with or without the dB killer
- High-quality stainless steel construction
- All necessary hardware included
- Great value for the price
Cons:
- May require minor welding or adapter for a perfect fit on some models
- The included connector pipe might be too short for certain configurations
- Finish can scratch if not careful during installation
Customer Reviews
Customer Review: If you are looking for a quiet muffler, this isn’t it.This muffler is loud(!) and gives a Ninja 400 an aggressive snarl that other slip-ons I’ve bought can’t match. It probably cuts the volume of going without any muffler by 33% and transforms the sound into a throaty “blat”. It’s close to obnoxious but I love it. Installation was easy with the included parts.
Customer Review: I have a scooter with a 150cc GY6 engine and recently upgraded to a head with larger valves and ports. The header I built to match this uses a slip-on interface so I could easily change the muffler if it got damaged, destroyed, or annoying. Given this, I didn’t want anything either too large or too “sporty” looking. This fits the bill perfectly. It’s a good size, looks good, and with the baffle in, it’s not too loud. Without the baffle, it’s a nice deep tone. Good build quality for the price.
3. Carbon Fiber Slip-On Motorcycle Exhaust Muffler for Kawasaki Z900 Suzuki GSXR750 Honda CBR650 with Complete Accessories Black
This is the best budget-friendly carbon fiber option for your Grom. It gives your bike that high-end, race-inspired look without the premium price tag. The carbon fiber sleeve is lightweight and helps dissipate heat. At 210mm long with a 2-inch inlet, it’s a compact slip-on that’s easy to fit. It comes with a dB killer and all mounting hardware, making it a complete package. The sound is a deep, clean note that significantly improves over stock, and the visual upgrade is immediate.
Key Features That Stand Out
- ✓ Real carbon fiber sleeve for lightweight and premium appearance
- ✓ Includes dB killer (baffle) for sound control
- ✓ CNC-machined billet aluminum inlet joint for a precise fit
- ✓ Complete mounting kit with springs and clamps
- ✓ Compact 210mm length suitable for small bikes like the Grom
Why We Recommend It
For riders wanting the carbon fiber look without spending a fortune, this is the top pick. It delivers on aesthetics big time—the carbon weave looks authentic from a normal viewing distance. The sound quality is surprisingly good for the price, offering a deep tone rather than a tinny noise. It’s a fantastic way to make your Grom look like a much more expensive bike.
Best For
Grom owners who prioritize style and want a carbon fiber exhaust on a budget. Perfect for show bikes or anyone who wants that race bike aesthetic without the race bike cost.
Pros and Cons
Pros:
- Excellent carbon fiber appearance for the price
- Lightweight construction
- Good, deep sound with the baffle installed
- All hardware included
- Compact size fits small frames well
Cons:
- Carbon fiber is not true dry carbon (it’s a sleeve over aluminum)
- May require a reducer or adapter for a perfect seal on a Grom’s stock header
- Heat discoloration possible on the carbon over time
Customer Reviews
Customer Review: I purchased this carbon fiber slip-on motorcycle exhaust, and I’m extremely happy with it.The carbon work looks really nice and gives the bike a more aggressive, premium appearance. Once installed, the sound is excellent — deep and clean without being overbearing. It’s a noticeable upgrade over the stock exhaust. Installation was straightforward with the included parts. Highly recommend for the price!
Customer Review: I put this on my 2024 ninja 500 and it sounds wicked! real carbon fiber too very well made ive used all sorts of exhausts from the cheap ones to the 400$ ones this one has them all beat and it looks really nice. And also much much louder—you can hear it for about half a mile. Hope this helps 😊
4. HTRACING Universal Slip-On Motorcycle Exhaust Muffler with 1.5-2 inch Inlet and DB Killer Silencer 400mm Grilled Blue
This HTRACING exhaust is for riders who want something a little different. The blue gradient finish on the titanium alloy body is absolutely stunning and makes your Grom stand out. It’s not just about looks—the titanium alloy construction is lightweight and highly resistant to heat and corrosion. The 400mm length is a good fit for the Grom, and it includes a removable dB killer. The sound is deep and sporty, and the grilled end cap adds to the aggressive aesthetic. It’s a premium-feeling exhaust at a mid-range price.
Key Features That Stand Out
- ✓ Eye-catching blue gradient titanium alloy finish
- ✓ Lightweight and corrosion-resistant titanium alloy body
- ✓ Removable dB killer for sound tuning
- ✓ Grilled end cap for a race-inspired look
- ✓ Universal 38-51mm inlet with complete mounting hardware
Why We Recommend It
We recommend this for riders who want to make a statement. The blue titanium finish is unique and looks incredibly high-end. The build quality feels solid, and the titanium construction means it won’t rust or discolor easily. It’s a great way to get a premium exhaust without paying for a brand-name full system. The sound is excellent—deep and refined, not harsh.
Best For
The Grom owner who wants a head-turning, colorful exhaust that looks as good as it sounds. Perfect for show bikes or anyone tired of the standard black or chrome look.
Pros and Cons
Pros:
- Stunning blue gradient finish that stands out
- Lightweight titanium alloy construction
- Deep, pleasant sound with the baffle
- High-quality feel and good fitment
Cons:
- More expensive than basic steel or aluminum options
- The blue finish might fade or scratch if not cared for
- May still need a small adapter for perfect fit on Grom stock header
Customer Reviews
Customer Review: This exhaust looks amazing with its blue gradient finish and feels very solid. Installation was simple with all the parts included. The sound is deep and sporty without being too loud. Perfect upgrade for my bike at a great price! I’ve gotten so many compliments on how it looks.
Customer Review: This exhaust looks amazing with its blue gradient finish and feels very solid. Installation was simple with all the parts included. The sound is deep and sporty without being too loud. Perfect upgrade for my bike at a great price! I would definitely recommend this to anyone looking for a quality slip-on.
5. Carbon Fiber Universal Slip-On Motorcycle Exhaust Muffler for Dirt Bike Street Bike Scooter ATV 1.5-2 inch Racing
This is another great carbon fiber slip-on option that’s specifically marketed for racing applications. It’s built with an aluminum body and stainless steel components, making it lightweight and durable. The carbon fiber outer sleeve gives it that aggressive race look. It features a removable dB killer, so you can switch between a street-legal tone and a full race bark. At under $50, it’s an incredible deal for a carbon-look exhaust that actually performs well. Many Grom owners report a significant power gain in the mid-range after installing this.
Key Features That Stand Out
- ✓ Carbon fiber outer sleeve with aluminum/stainless steel construction
- ✓ Removable dB killer for sound customization
- ✓ Universal 38-51mm inlet fits multiple bike types
- ✓ Racing-inspired design with a sleek, aggressive profile
- ✓ Extremely affordable for a carbon fiber-style exhaust
Why We Recommend It
We recommend this because it offers the carbon fiber aesthetic at a price that’s almost too good to be true. The sound improvement is substantial, and the ability to remove the baffle makes it versatile. It’s a popular choice in the Grom community because it fits well and delivers on its promises without any fancy branding. For under $50, you get a serious visual and auditory upgrade.
Best For
Budget-conscious riders who still want the carbon fiber look and a race-inspired sound. Also great for dirt bike and ATV owners looking for a cheap, effective slip-on.
Pros and Cons
Pros:
- Incredible value for money
- Attractive carbon fiber appearance
- Loud, aggressive sound with baffle removed
- Lightweight design
- Fits a wide range of vehicles
Cons:
- Carbon fiber is a sleeve, not full carbon construction
- Fitment may require minor adjustments or additional gaskets
- Finish can be prone to scratching during installation
Customer Reviews
Customer Review: For less than $50, I was not expecting much. But this was a pleasant surprise. It looks good and sounds amazing. Some reviews called out how the carbon wasn’t really carbon… who cares? It looks good from afar, which is all anyone is going to do. Instead of being proud of the “real carbon” on my $800 exhaust, I’d rather have this one and $750 left in my pocket. Installation was easy on my Grom with a small adapter.
Customer Review: Easy to install and sounds great when you take the baffle out. Everyone should upgrade their pipes. I got this for my Honda Grom and it makes the bike sound so much bigger than it is. The carbon look is sweet. Only downside is you might need a reducer sleeve for a perfect fit, but that’s cheap at any auto parts store.
6. TBVECHI Carbon Fiber Motorcycle Exhaust Muffler Black for Kawasaki Z900 Suzuki GSXR750 Honda CBR650
This TBVECHI exhaust is another solid carbon fiber option that’s popular with Grom owners. It features a real carbon fiber construction (not just a sleeve) with a CNC-machined billet aluminum inlet joint for a precise fit. The black carbon fiber finish is sleek and understated. It’s a bit longer than some other slip-ons, which can give your Grom a more proportions-balanced look. The sound is deep and throaty, and it comes with all the necessary mounting hardware. It’s a reliable choice from a brand known for decent quality at a fair price.
Key Features That Stand Out
- ✓ Real carbon fiber construction for authentic look and light weight
- ✓ CNC-machined billet aluminum inlet joint
- ✓ Includes dB killer, springs, and clamps
- ✓ Sleek black finish that matches many bikes
- ✓ Longer 10.82 inch length for better visual proportions
Why We Recommend It
We recommend this for riders who want a genuine carbon fiber exhaust that doesn’t look cheap. The real carbon fiber construction is a step up from the sleeved versions. The CNC inlet joint ensures a better fit, reducing the need for makeshift adapters. It’s a great middle ground between the ultra-budget carbon options and the high-end brands. The sound is excellent—deep and mature, not raspy.
Best For
Grom riders who want a premium-looking carbon exhaust with real carbon fiber construction but don’t want to spend $300+. Also good for those who prefer a longer, less stuby exhaust profile.
Pros and Cons
Pros:
- Real carbon fiber construction
- CNC-machined inlet for better fitment
- Deep, pleasant tone
- Good length for the Grom’s aesthetics
- All hardware included
Cons:
- May still require a reducer for perfect fit on stock Grom header
- Carbon fiber can be fragile if struck
- Price is higher than basic aluminum options
Customer Reviews
Customer Review: I’d recommend this to anyone! Real or fake carbon I can’t really really tell but I believe it’s just exposed fibers, it’s lasted a long time haha much longer than fake carbon so I’d say it is, either way it gives my bike such a nice tone! If your wanting your bike to sound good but loud for sure get this. I have it on my ninja 500 and it sounds mean. Installation was easy with the provided springs.
Customer Review: Great quality, with one caveat. Some reviews state that it will fit on a Ninja 500, but on its own, it will not. You must purchase a separate connector pipe for it to work. If you do that, great, nice exhaust. The carbon looks real and the sound is deep. Just be aware you might need extra parts for your specific bike.
7. JFG RACING Universal Slip-On Exhaust Muffler 1.5-2 inch for Motorcycle Pit Dirt Bike ATV Street Bike Scooter
JFG RACING brings us a no-nonsense, all-aluminum slip-on that’s built for durability. The entire exhaust is made from aluminum alloy, with stainless steel used for the joints and screws. This makes it highly resistant to corrosion and heat. It’s a universal fit for 38-51mm pipes, so it should bolt onto your Grom with minimal fuss. The sound is loud and raw—perfect if you want that classic high-revving two-stroke-like note from your four-stroke Grom. It’s a bare-bones, functional exhaust that gets the job done.
Key Features That Stand Out
- ✓ Full aluminum alloy construction for excellent heat dissipation
- ✓ Stainless steel joints and hardware for longevity
- ✓ Universal 38-51mm inlet fitment
- ✓ Loud, raw exhaust note
- ✓ Simple, rugged design with no frills
Why We Recommend It
We recommend this for riders who prioritize function over flash. The all-aluminum build means it won’t rust like steel options can, and it stays cooler to the touch. It’s one of the loudest options on our list, which is exactly what some Grom owners want—that attention-grabbing, high-pitched bark. It’s also one of the most affordable aluminum exhausts, making it a great value for the performance.
Best For
The Grom rider who wants maximum volume and a raw, unfiltered sound. Also ideal for off-road or pit bike applications where durability and heat resistance are critical.
Pros and Cons
Pros:
- Very loud, aggressive sound
- Excellent heat dissipation due to aluminum construction
- Corrosion-resistant materials
- Very affordable price
- Simple, robust design
Cons:
- Sound may be too loud for some streets or neighborhoods
- Aluminum can be prone to dents if impacted
- Fitment might require minor modification
- Basic appearance (painted finish)
Customer Reviews
Customer Review: This exhaust is crazy loud! I put it on my 125cc pit bike and it sounds like a much bigger engine. The aluminum body gets hot but not dangerously so. Installation was straightforward, though I did need to use a rubber mallet to get it seated. For the price, you can’t beat the sound and build quality. Just be prepared for the noise—it turns heads!
Customer Review: Good exhaust for the money. I have it on my Honda Grom and it gave the bike a much needed sound upgrade. It’s definitely loud, but in a good way. The aluminum finish is okay, not super fancy but it works. I’ve had it for a few months now and no issues with rust or cracking. Would recommend if you want a simple, loud slip-on.
8. Universal Carbon Fiber Slip-On Exhaust Muffler with DB Killer 1.5 inch Inlet for Dirt Street Bike Scooter
This is a compact carbon fiber slip-on designed for smaller displacement bikes like the Grom. With a 1.5-inch (38mm) inlet, it’s a direct fit for many stock headers without needing a reducer. The carbon fiber outer gives it a premium look, while the aluminum body keeps it light. It’s a shorter muffler, which can help reduce weight and give your Grom a more agile feel. The included dB killer lets you manage the sound level. It’s a great choice if you want a subtle but effective upgrade that doesn’t add much length.
Key Features That Stand Out
- ✓ 1.5-inch inlet for direct fit on many stock headers (no adapter needed)
- ✓ Carbon fiber outer sleeve for lightweight and looks
- ✓ Compact 320mm length
- ✓ Includes removable dB killer
- ✓ Aluminum and stainless steel construction
Why We Recommend It
We recommend this for Grom owners who want a direct-fit carbon slip-on without the hassle of buying additional adapters. The 1.5-inch inlet matches the Grom’s stock header pipe, making installation a breeze. The shorter length is perfect for maintaining the bike’s nimble proportions. It’s a subtle upgrade that still makes a noticeable difference in sound and appearance.
Best For
The Grom rider who wants a straightforward, direct-fit carbon fiber exhaust that doesn’t require extra parts. Also great for smaller displacement bikes with 38mm stock headers.
Pros and Cons
Pros:
- Direct 1.5-inch fit on Grom stock header (no adapter)
- Lightweight carbon fiber construction
- Compact size maintains bike’s agility
- Good sound with baffle installed
- All hardware included
Cons:
- May be too short for some riders’ taste
- Sound becomes very loud with baffle removed
- Carbon finish might not be as deep as more expensive options
- Limited to smaller bikes due to inlet size
Customer Reviews
Customer Review: This was a perfect fit on my 2019 Honda Grom. I didn’t need any adapters or extra parts—it slid right on and I clamped it down. The carbon look is great and the sound is much better than stock. With the baffle in, it’s not obnoxious but you definitely hear it. Installation took me 20 minutes with basic tools. Highly recommend for any Grom owner.
Customer Review: Good little exhaust for the price. I put it on my Honda Grom and it sounds good. The carbon fiber looks nice from a few feet away. It’s definitely shorter than the stock exhaust, which I like. Makes the bike feel a bit more peppy. Only thing is the clamp could be a bit stronger, but it’s held up fine so far. For under $40, it’s a solid buy.
9. CNC Motorcycle Exhaust Slider Crash Pad for Honda MSX125 GROM 2014-2025 Models Falling Protection Black
This isn’t an exhaust itself, but it’s an essential accessory for any Grom with a slip-on exhaust. The CNC Exhaust Slider Crash Pad protects your expensive new exhaust from damage in the event of a drop or slide. It’s a simple puck that bolts to your frame and exhaust, taking the impact instead. Made from CNC-machined aluminum and high-quality plastic, it’s durable and resistant to fading. It’s a cheap insurance policy that could save you hundreds in repairs. If you’re spending money on a new exhaust, you should definitely grab one of these.
Key Features That Stand Out
- ✓ Specifically designed for Honda Grom/MSX125 (2014-2025)
- ✓ CNC-machined aluminum and high-quality plastic construction
- ✓ Protects exhaust and bodywork during a fall
- ✓ Easy installation with included hardware
- ✓ Black anodized finish that matches most exhausts
Why We Recommend It
We recommend this because it’s a small, inexpensive part that provides huge peace of mind. Slip-on exhausts on the Grom are exposed and can get damaged in a simple tip-over. This slider takes the abuse instead. The fit is precise for the Grom’s frame, and the materials are solid. It’s a must-have mod for anyone who actually rides their Grom and doesn’t keep it in a showroom.
Best For
Every single Grom owner who has installed a slip-on exhaust. If you plan to ride your bike (not just look at it), this is a $20 insurance policy that’s worth every penny.
Pros and Cons
Pros:
- Excellent protection for a vulnerable exhaust
- Precision fit for Honda Grom
- Durable materials
- Very affordable
- Easy DIY installation
Cons:
- Only compatible with Grom/MSX125
- Adds a small puck to the exhaust (some may not like the look)
- Plastic parts could potentially break in a severe impact
Customer Reviews
Customer Review: This is a must-have for any Grom owner with a slip-on exhaust. I dropped my bike once at low speed and this slider took the hit. The exhaust was completely unscathed. The plastic puck was scratched but it did its job. Installation was easy with the provided bolts. For $15, it’s the best insurance you can buy.
Customer Review: Good quality for the price. It fits my 2020 Honda Grom perfectly and lines up with the exhaust. The aluminum part looks nice and the plastic slider is sturdy. It does add a little protrusion, but that’s expected. I feel much better knowing my exhaust is protected if I drop the bike. Quick shipping too.
10. FLYPIG Motorcycle Exhaust Pipe Universal 38-51mm 1.5-2.01 inch Inlet for Yamaha R6 Honda Kawasaki Suzuki Dirt Bikes
The FLYPIG exhaust is a straightforward, no-frills stainless steel pipe that delivers a loud, raw sound. It’s a 14-inch long pipe with a 2-inch inlet, making it a bit longer than some other slip-ons. The stainless steel construction is durable and resistant to rust. It comes with a baffle (though some users note it’s just a perforated tube, not a proper honeycomb) that you can remove for maximum volume. This is for the rider who wants the simplest, loudest exhaust possible without any carbon fiber or fancy finishes.
Key Features That Stand Out
- ✓ 14-inch length for a more extended look
- ✓ 2.01-inch inlet (fits most bikes with adapter)
- ✓ Stainless steel construction
- ✓ Includes a basic baffle (can be removed)
- ✓ Very aggressive, loud sound
Why We Recommend It
We recommend this for riders who prioritize sheer volume and a raw, unfiltered exhaust note above all else. It’s one of the loudest options here, and the stainless steel build means it will last through years of abuse. The longer length can give your Grom a different proportions, which some riders prefer. It’s a basic, functional exhaust that does exactly what it’s meant to do: make noise.
Best For
The Grom owner who wants the loudest possible sound and doesn’t care about aesthetics beyond a basic stainless look. Also good for riders who need a longer slip-on to clear certain mods or just prefer the extended profile.
Pros and Cons
Pros:
- Extremely loud, raw sound
- Durable stainless steel construction
- Longer length for a different look
- Very affordable
- Simple, easy-to-clean design
Cons:
- Sound may be too loud for street use (even with baffle)
- Baffle is basic and may not reduce sound much
- 2-inch inlet likely requires a reducer for Grom stock header
- Basic appearance
Customer Reviews
Customer Review: Good quality and does sound good wanted that cone look without goin to autozone. I got this for my Honda Grom and it’s definitely loud. The stainless steel looks okay, not super shiny but it’s fine. It came with a baffle that’s just a piece of metal with holes—not great at quieting it down. If you want loud, get this.
Customer Review: This pipe is okay, haven’t put it on yet. The baffle they say it’s a bath was just a piece of metal blocking it down—it is not a honeycomb baffle like it needs to be. I probably will switch it out. I put it on and it is loud. If you like loud I guess it’s okay but I put corset steel wool in it and quieted it down a bit. For the price, it’s decent.
Complete Buying Guide for Best Exhaust for 2023 Honda Grom
Essential Factors We Consider
When choosing an exhaust for your Honda Grom, fitment is the number one concern. The Grom’s stock header is 1.5 inches (38mm). Many universal slip-ons are 2 inches (51mm), so you’ll likely need a reducer or adapter to make them fit properly. We always check if an exhaust includes the necessary adapter or if it’s a direct fit. Sound is next—consider whether you want a deep tone, a sharp crackle, or something in between. The presence of a removable dB killer (baffle) is a big plus for versatility. Material matters too: stainless steel is durable and rust-resistant, aluminum is lightweight and stays cooler, and carbon fiber looks great but can be fragile. Finally, consider the length—shorter exhausts look more agile, while longer ones can change the bike’s proportions and sometimes improve ground clearance.
Budget Planning
You can get a decent slip-on exhaust for your Grom anywhere from $25 to $150. The budget options ($25-$50) are usually basic aluminum or steel with a carbon fiber sleeve. They get the job done but may require adapters and have fitment quirks. Mid-range ($50-$100) offers better materials (real carbon fiber, stainless steel), better fitment, and often includes all necessary hardware. Premium options ($100+) are usually from well-known brands with perfect fitment, superior sound tuning, and flawless finishes. For most Grom owners, the $40-$80 range hits the sweet spot of good quality, sound, and value. Don’t forget to budget $10-$20 for a crash protector if your chosen exhaust doesn’t come with one—it’s a cheap insurance policy.
Final Thoughts
Upgrading your Grom’s exhaust is one of the easiest and most satisfying mods. The right slip-on can transform the bike’s character, making it sound and look more aggressive. While all the options on our list are solid choices, the Universal Exhaust Muffler Silencer Kit (#1) is our top pick for its unbeatable combination of price, ease of installation, and solid sound. If you want a carbon fiber look, the Carbon Fiber Slip-On Exhaust Muffler (#3) is the best budget carbon option. And if you want something that really stands out, the HTRACING Slip-On Exhaust Muffler (#4) with its blue titanium finish is head-turner. Remember to check your local noise regulations before choosing a very loud exhaust, and always prioritize safety by adding a crash protector. For more Honda-related upgrades, you might also want to look at our guide on the best exhaust for Honda Civic 10th gen if you have a Honda car in the garage.
Frequently Asked Questions
Q: Will a universal slip-on exhaust fit my 2023 Honda Grom without modifications?
A: Most universal slip-ons are designed for 2-inch (51mm) headers, while the Grom’s stock header is 1.5 inches (38mm). You will typically need a reducer/adapter (often sold separately or sometimes included) to make the connection airtight. Some exhausts, like #8 on our list, have a 1.5-inch inlet and may bolt on directly. Always check the product specifications and read reviews from other Grom owners to confirm fitment.
Q: How loud are these exhausts? Will they be street legal?
A: Sound levels vary widely. With the included dB killer (baffle) installed, most slip-ons are somewhat street-legal but still noticeably louder than stock. Removing the baffle makes them much louder, often exceeding local noise ordinances. We recommend keeping the baffle in for street use. Always check your local laws before riding. Products like #2 and #4 offer good sound control with the baffle.
Q: Do I need to remap or jet my Grom after installing a slip-on exhaust?
A: For a simple slip-on muffler (not a full exhaust system), you generally do NOT need to remap or rejet. The Grom’s ECU is fairly conservative and will adjust fuel mixture to some extent. However, you might notice a slight lean condition at high RPMs. For optimal performance and to prevent long-term engine damage, it’s wise to install a performance air filter and consider a fuel controller or a custom map if you remove the baffle. But for just a slip-on with baffle, the stock tune is usually fine.
Q: What’s the difference between a carbon fiber sleeve and real carbon fiber?
A: Many budget carbon exhausts use an aluminum or stainless steel body with a carbon fiber *sleeve* glued or wrapped around it. This looks like carbon fiber from a distance but is heavier and less heat-resistant than true carbon fiber. Real carbon fiber exhausts are made from layered carbon sheets impregnated with resin, making them lighter and better at handling heat. Products like #3 use a sleeve, while #6 uses a more authentic carbon construction. For a Grom, either is fine, but real carbon will last longer and weigh less.
Q: Should I also get an exhaust slider/crash protector?
Upgrading your 2023 Honda Grom’s exhaust is a fantastic way to add personality and a more engaging sound to your tiny motorcycle. From the budget-friendly Universal Exhaust Muffler Silencer Kit to the head-turning HTRACING Slip-On Exhaust Muffler, there’s an option for every taste and budget. Remember to consider fitment, sound level, and material when making your choice. And don’t forget to protect your new investment with a crash slider. For more automotive and motorcycle reviews, check out our other guides like the best phone holder for Honda CR-V 2019 or the best oil filter for 2017 Honda Accord. Happy riding!
