5 Best Exhausts for Honda Grom 2026
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The overall best exhaust for the Honda Grom is the Exhausts Pipes for Honda Grom/MSX125, offering solid construction and a noticeable upgrade in tone and flow. For riders on a budget, the Muffler Exhaust Slip-On for Honda Grom delivers a quick sound improvement with easy installation. If you’re after versatility and a balanced mod, the Motorcycle Exhaust Middle Link Pipe pairs well with aftermarket mufflers and enhances performance without going full system.
Upgrading a Grom’s exhaust isn’t just about noise, it’s about refining how this little bike performs and feels. Many riders jump in looking for that aggressive bark but end up with poor fitment, excessive drone, or even lost low-end power. I’ve seen it too many times in forums and owner groups.
This guide cuts through the hype. I compared specs, studied long-term owner feedback, and evaluated build quality to spotlight options that actually improve the ride. Whether you want a bolt-on slip-on or a full stainless system, these picks prioritize fit, sound, and real-world durability, because a good exhaust should earn its place on your bike.
Top 5 Exhaust Honda Groms in the Market
The Best Exhaust Honda Groms, Reviewed
Exhausts Pipes for Honda Grom/MSX125
Strengths
- Stainless steel build
- Dual-out design
- 51mm standard fit
Trade-offs
- No muffler included
- Higher price point
On paper, this mid-pipe stands out for its dual-out design and use of stainless steel, which suggests both visual appeal and long-term resilience against corrosion. The 51mm connecting caliber is a smart spec, it’s a common size that pairs cleanly with many aftermarket mufflers, giving riders flexibility in tuning their full system. Owners consistently report that it holds up well under daily use and contributes to a cleaner exhaust path than stock.
What pushes this ahead of some full systems is its focus on integration. It’s not just a universal fit; it’s engineered to align precisely with OEM mounting points, which reduces the need for clamps, spacers, or welding. Compared to cheaper universal options, this one avoids the guesswork. I’d pick this as the foundation for a full custom setup, especially if you already have or plan to source a high-flow muffler separately.
Video review
Muffler Exhaust Slip-On for Honda Grom
Strengths
- Striking blue finish
- Easy slip-on install
- Improved exhaust flow
Trade-offs
- Color may fade with heat
- Sound change is mild
Let’s be honest, many Grom owners buy this for the bold blue finish. And fair enough. That heat-treated look stands out in a sea of black and chrome, giving the bike instant custom flair. But it’s not just style over substance. The slip-on design means it installs in under an hour, and the internal baffling is tuned to enhance flow without going deafening. Owners report a richer tone and slightly sharper throttle response, especially when the air filter is also upgraded.
Compared to full systems, this strikes the right balance for most riders. It delivers visual pop and a modest performance bump without requiring ECU tuning or mid-pipe swaps. I’d pick this over the universal full system any day for a stock or mildly tuned Grom. Just know the blue will fade over time with heavy heat cycling, some love that patina, others don’t.
Video review
Motorcycle Exhaust Middle Link Pipe
Strengths
- Improves throttle response
- Precision OEM fit
- Corrosion-resistant steel
Trade-offs
- Mid-pipe only
- No sound enhancement
For pure value and function, this mid-pipe is hard to beat. It’s built to reduce backpressure, and owners confirm it delivers a noticeable uptick in throttle response, especially when paired with a free-flowing muffler. The premium stainless steel construction is a standout at this price, and the precision machining means it slips right into place without grinding or adjusting.
It’s not flashy, but it’s effective. Compared to full systems that cost twice as much, this part targets the actual bottleneck in stock exhaust flow: the mid-section. I’d recommend this as the first upgrade before touching the muffler. It’s also a favorite among riders doing XR150L-style mods, thanks to its compatibility with broader aftermarket trends. If you want performance without noise or complexity, this is your move.
Product photos
Exhaust System for Honda Grom/MSX125
Strengths
- Lightweight construction
- Full system replacement
- Low-profile side exit
Trade-offs
- Finish durability concerns
- Modest performance gain
- Baffle can restrict flow
The standout here is the lightweight design, a real plus on a bike like the Grom, where every pound counts. The low-mount side end structure keeps the profile tight and street-friendly, and the included baffle helps maintain a legal, neighborhood-acceptable tone. It’s a full system, so you’re replacing everything from mid-pipe to tip, which simplifies the install compared to piecing together components.
But while it’s lighter than stock, it doesn’t use high-end alloys, so long-term durability isn’t quite at the level of the stainless builds. Some owners note minor finish wear after a few months of wet riding. Still, for a rider who values a clean, OEM+ look and a modest weight reduction, this is a solid middle ground. It doesn’t wow on sound or power, but it delivers where it counts for daily riders.
Product photos
Motorcycle Full Exhaust System with DB Killer
Strengths
- Includes DB killer
- Universal compatibility
- Affordable entry
Trade-offs
- Inconsistent fit reports
- Mounting may require modification
- Less refined finish
This system leans hard into the universal fit market, and that’s both its strength and its biggest compromise. The inclusion of a DB killer is a nod to riders who want a throatier tone without going full race loud, and the durable materials do check out based on owner feedback. But because it’s not model-specific, install stories vary, some praise the fit, others mention needing custom bracketing or alignment tweaks.
It’s clearly built to be adaptable, but that adaptability comes at the cost of precision. Compared to the B0H8RDQCKP mid-pipe or the B0HDW7XMCJ slip-on, this one doesn’t offer the same level of OEM-level confidence. If you’re on a tight budget and willing to fiddle, it might work. But for a Grom, where clean lines and compact packaging matter, I’d rather spend a bit more for a dedicated fit.
Product photos
Our Testing Process
Rather than a hands-on lab test, my research for these Grom exhausts focused on a detailed comparison of published specifications and features across several models. I weighed owner reviews from sites like Amazon and motorcycle forums, alongside assessments from reputable motorcycle publications. As someone who enjoys understanding the mechanics of bikes, I applied my knowledge of exhaust systems – backpressure, flow rates, and material science – to assess each option against key performance indicators.
For Honda Grom exhausts, sound and weight are paramount. A noticeable improvement in tone without being overly aggressive is a sweet spot for many riders, and shedding weight is always a plus on a nimble bike like the Grom. Equally important is fitment; a direct bolt-on installation saves time and frustration. These factors heavily influenced my rankings, aiming to identify exhausts that balanced performance gains with ease of use and rider enjoyment.
Specifications reliably indicate construction materials and physical dimensions, giving a good indication of durability and potential weight savings. However, owner feedback proved crucial for assessing real-world sound levels and any fitment issues. Reputation also played a role – brands consistently praised for quality and customer service received more consideration. Thinking about maintaining your Grom, checking out a Honda motor oil guide is also worthwhile. Ultimately, this research aims to point you toward the best options for upgrading motorcycle exhaust.
How To Pick The Right exhaust honda groms
Finding the right exhaust for your Honda Grom is about more than just making it sound good. It’s about balancing performance, aesthetics, and, frankly, not annoying the neighbors too much.
A quality exhaust system for a Grom should offer a noticeable improvement in flow without sacrificing low-end torque. Materials matter; stainless steel is crucial for resisting corrosion. Fitment needs to be precise, and the design should complement the Grom’s compact frame. Consider whether you want a full system, a slip-on, or a link pipe, and how that impacts installation complexity and potential gains.
Understanding Exhaust System Types
The first step is realizing there are several ways to upgrade your Grom’s exhaust. A full system, replacing everything from the header to the muffler, offers the most potential performance gains, but also demands the biggest investment and often requires more involved installation. Link pipes are a good middle ground; they connect the header to an aftermarket muffler, improving flow without the cost of a full system. Finally, slip-on mufflers are the easiest to install – directly replacing the stock muffler – but offer the smallest performance increase. Don’t underestimate the impact of a simple muffler swap, though, especially if you’re prioritizing sound and style.
Material and Construction Quality
When it comes to exhaust systems, material quality dictates longevity. Stainless steel is the gold standard for a reason. Cheaper systems made from lower-grade steel will rust quickly, especially if you ride in wet conditions. Look for welds that are clean and consistent, indicating a well-built system. Beyond the steel itself, pay attention to the thickness of the pipe walls. Thicker walls generally mean a more durable exhaust, but also add weight. Speaking of weight, if you’re aiming for a lightweight build, exploring titanium options (though pricier) can make a noticeable difference. I always recommend checking into what other Grom owners are saying about long-term durability, particularly for systems sourced from less-known brands. You can find helpful discussions about Grom tires and other upgrades in online forums, giving you a real-world perspective.
Sound and Legality Considerations
The sound of your exhaust is a personal preference, but it’s also important to be mindful of local noise regulations. Some aftermarket exhausts can be incredibly loud, potentially leading to fines or even impoundment. Many systems now come with a DB killer (a removable baffle) to reduce noise levels.
Here’s what to consider when thinking about sound: * Baffle Type: Removable baffles offer flexibility. * Muffler Design: Different muffler designs produce different tones (e.g., a quieter, deeper rumble vs. a high-pitched scream). * Pipe Diameter: Larger diameter pipes generally mean a louder exhaust.
A good rule of thumb is to prioritize an exhaust that sounds good to you but remains within legal limits for your area. Don’t sacrifice practicality for pure volume.
If you’re looking for a similar level of performance enhancement for other bikes, you might be interested in exploring Honda CBR exhaust options – though the Grom’s small engine presents a very different set of challenges and opportunities.
Exhaust Honda Groms Compared
Here’s a comparison of exhaust systems for Honda Groms, focusing on key specifications.
| Product Title | Compatibility | Material | Pipe Diameter | Mounting | Sound Level |
|---|---|---|---|---|---|
| Exhausts Pipes for Honda Grom/MSX125 | 2014-2025 | Stainless Steel | 51mm | Standard | N/A |
| Muffler Exhaust Slip-On for Honda Grom | Grom 125cc | N/A | N/A | Slip-On | Enhanced |
| Motorcycle Exhaust Middle Link Pipe | MSX125 2013-2019 | Stainless Steel | N/A | Direct Replacement | N/A |
| Exhaust System for Honda Grom/MSX125 | 2013-2023 | N/A | N/A | Standard | N/A |
| Motorcycle Full Exhaust System with DB Killer | Universal | Durable Materials | N/A | N/A | Louder |
Frequently Asked Questions
Will installing an aftermarket exhaust void my Grom’s warranty?
Generally, simply installing a slip-on exhaust won’t void your warranty, but modifications that cause damage could. A full exhaust system replacement is more likely to raise concerns with the dealer if a related issue arises.
What’s the difference between a slip-on and a full exhaust system for a Grom?
A slip-on muffler replaces only the stock muffler, offering easier installation and lower cost, while a full system replaces the headers and mid-pipe as well for maximum performance gains. Full systems will be more expensive and require more mechanical skill to install.
Are exhaust wraps necessary for a Honda Grom exhaust?
While not essential, using exhaust wraps can help retain exhaust heat, potentially improving performance slightly, and also protect surrounding components from radiant heat. They are more often used on racing applications.
Can I install a Grom exhaust myself, or do I need a professional?
A slip-on muffler is usually a straightforward DIY project for those with basic mechanical skills. However, installing a full system or link pipe can be more complex and might benefit from a professional’s touch, especially if you’re not comfortable with motorcycle mechanics.
What should I look for when considering aftermarket ATV exhaust systems?
If you also enjoy off-roading, understanding ATV exhaust systems can be useful. Look for stainless steel construction, appropriate sound levels for your riding area, and compatibility with your specific ATV model.
The Bottom Line
Upgrading a Grom’s exhaust always involves compromise. You’re trading a bit of civility for a sportier sound and potentially a small performance boost, and the price climbs quickly as you move toward full systems. For the best overall balance of sound, build quality, and ease of installation, the Exhausts Pipes for Honda Grom/MSX125 stands out. Its stainless steel construction and standard mounting offer a solid upgrade without breaking the bank or requiring extensive mechanical work.
If you’re on a tighter budget, the Muffler Exhaust Slip-On for Honda Grom is a great starting point. For those wanting maximum flow and a more aggressive tone, the Motorcycle Full Exhaust System with DB Killer delivers, though it demands a larger investment and more involved installation. Don’t forget to consider other essential maintenance items – checking out Honda oil filters is just as important as any performance upgrade.
Ultimately, the “best” exhaust is the one that aligns with your priorities and riding style. Don’t get too caught up in chasing peak horsepower numbers or the loudest sound. Focus on finding a system built from quality materials, offering a sound you enjoy, and complementing the overall experience of owning and riding your Grom. Exploring other Honda motorcycle accessories can also help personalize your ride and enhance its functionality.
