Finding the best exhaust for the Low Rider ST can be overwhelming with so many options. We researched and compared the top systems based on manufacturer specifications, published industry standards, and aggregated owner feedback. Our evaluation focuses on sound quality, performance gains, build durability, ease of installation, and safety compliance. Here are our top picks to help you upgrade your ride.
| Photo | Product | Score | Buy |
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Vance & Hines Big Radius 2-Into-1 Exhaust Best Overall 2-into-1 design, stainless steel, black heat shields, includes fuel tuner required |
9.0 | 🛒 Check Price |
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Rinehart Racing 3.5 Slip-On Mufflers Best Slip-On Slip-on design, 3.5 inch diameter, black or chrome finish, no retune needed |
8.7 | 🛒 Check Price |
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Bassani Road Rage 2-Into-1 Exhaust Best for Power 2-into-1 design, 4 inch diameter muffler, stainless steel, includes heat shields |
9.2 | 🛒 Check Price |
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Screamin' Eagle Street Cannon Mufflers Best Factory Option Slip-on design, 4 inch diameter, black finish, compatible with Harley-Davidson factory tuning |
8.4 | 🛒 Check Price |
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Cobra Speedster Short Exhaust Best Shorty Style Slip-on design, 12 inch length, black ceramic coating, includes baffles |
7.8 | 🛒 Check Price |
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Two Brothers Racing S1R Exhaust Best for Sound Slip-on design, carbon fiber end cap, stainless steel, includes P1X power tip |
8.1 | 🛒 Check Price |
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Dynomax Race Bullet Mufflers Best Budget Slip-on design, 2.5 inch inlet, straight-through design, universal fit |
7.3 | 🛒 Check Price |
1. Vance & Hines Big Radius 2-Into-1 Exhaust: Best Overall
The Vance & Hines Big Radius 2-Into-1 Exhaust is a top choice for Low Rider ST owners seeking a balance of sound and performance. Based on owner feedback and the spec sheets, this system delivers a deep, aggressive tone that turns heads without being obnoxious on long rides. The stainless steel construction and ceramic coating ensure longevity, and the 2-into-1 design provides a noticeable bump in horsepower and torque. In our evaluation, the fitment is precise, and most users report a straightforward installation process.
However, this system requires a fuel tuner to unlock its full potential and avoid running lean, which adds to the overall investment. Riders who prefer a simpler plug-and-play setup may want to consider other options. Additionally, the price point is higher than some competitors, but the quality and performance justify the cost for serious enthusiasts.
- Deep, aggressive sound without excessive drone on the highway
- Dyno-proven gains in horsepower and torque across the RPM range
- High-quality stainless steel construction with durable ceramic coating
Pros: Excellent build quality and fitment; Noticeable performance improvement
Cons: Requires a fuel tuner for optimal results
2. Rinehart Racing 3.5 Slip-On Mufflers: Best Slip-On
The Rinehart Racing 3.5 Slip-On Mufflers are an excellent choice for Low Rider ST owners who want an easy upgrade. Based on owner feedback, these slip-ons deliver a deep, classic V-twin rumble that enhances the riding experience without excessive noise. The installation is straightforward and does not require a fuel tuner, making it a budget-friendly option. The stainless steel and powder coat finish resist corrosion and maintain appearance over time.
However, the performance gains are modest compared to a full exhaust system. Riders seeking maximum horsepower gains may be disappointed. Additionally, the sound is not as aggressive as some 2-into-1 systems, which could be a con for those wanting a louder exhaust. If you prioritize simplicity and value, this is a strong contender, but power seekers should look elsewhere.
- Easy bolt-on installation with no remapping required
- Deep, classic V-twin rumble with reduced cabin drone
- Stainless steel construction with durable black powder coat
Pros: Simple installation and no fuel tuner needed; Great value for the price
Cons: Modest power gains compared to full systems
3. Bassani Road Rage 2-Into-1 Exhaust: Best for Power
The Bassani Road Rage 2-Into-1 Exhaust is designed for Low Rider ST owners who demand maximum performance. In our evaluation, this system delivers some of the best dyno-proven gains in horsepower and torque, making it a favorite among performance enthusiasts. The sound is aggressive and race-inspired, with deep bass notes that announce your presence. The stainless steel construction and included heat shields ensure durability and a clean look.
However, the aggressive sound may be too loud for daily commuting or long tours, and the price is on the higher side. Riders who prefer a quieter exhaust or have noise restrictions should consider other options. Additionally, installation may require some mechanical experience, and a fuel tuner is recommended to optimize performance.
- Significant horsepower and torque gains across the powerband
- Aggressive, race-inspired sound with deep bass notes
- High-quality stainless steel with polished or black options
Pros: Top-tier performance gains; Excellent build quality and sound
Cons: Higher price point; Loud for some riders
4. Screamin' Eagle Street Cannon Mufflers: Best Factory Option
The Screamin’ Eagle Street Cannon Mufflers are a factory-backed upgrade for the Low Rider ST. Based on owner feedback, these slip-ons offer a deeper sound than stock without being overly loud, and they install easily with no need for remapping. The build quality is excellent, as expected from Harley-Davidson’s performance division, and the fitment is perfect. They are a great choice for riders who want a mild upgrade without complications.
However, the performance gains are minimal compared to aftermarket full systems, and the sound is not as aggressive as some competitors. Riders seeking significant power increases or a louder exhaust may be disappointed. These are best for those who prioritize warranty compatibility and ease of installation over raw performance.
- Plug-and-play installation with no tuning required
- Deep, powerful sound that meets Harley-Davidson standards
- Factory-tested durability and fitment
Pros: Seamless integration with Harley-Davidson systems; Reliable and durable
Cons: Limited performance gains; Less aggressive sound than aftermarket options
5. Cobra Speedster Short Exhaust: Best Shorty Style
The Cobra Speedster Short Exhaust offers a distinctive shorty style for Low Rider ST owners who want a bold look and sound. Based on owner feedback, these slip-ons produce a loud, raspy tone that turns heads, and the removable baffles allow some sound customization. The lightweight design reduces unsprung weight, which can improve handling. However, the aggressive sound can be tiring on long trips, and some riders report a loss of low-end torque without proper tuning.
This exhaust is not ideal for riders who prioritize comfort or need to comply with noise regulations. The build quality is decent but not as premium as stainless steel options, and the ceramic coating may chip over time. It is best suited for those who want a loud, attention-grabbing exhaust for short rides or show purposes.
- Compact, aggressive look with a loud, raspy sound
- Removable baffles for sound adjustment
- Lightweight construction reduces overall bike weight
Pros: Unique style and loud sound; Adjustable sound with baffles
Cons: Very loud, may cause fatigue on long rides; Potential for decreased low-end torque
6. Two Brothers Racing S1R Exhaust: Best for Sound
The Two Brothers Racing S1R Exhaust is designed for Low Rider ST owners who prioritize sound. Based on owner feedback, this slip-on produces a deep, crisp tone that stands out from typical V-twin exhausts. The carbon fiber end cap adds a custom touch and reduces weight. The P1X power tip is a unique feature that enhances exhaust flow and sound. However, some users report that fitment is not perfect and may require slight modifications, and the carbon fiber is less durable than metal in the long term.
This exhaust is not the best choice for riders who want a set-and-forget upgrade, as the fitment issues can be frustrating. Additionally, the performance gains are modest, and the price is higher than some competitors. It is ideal for those who want a distinctive sound and are willing to spend extra time on installation.
- Unique, deep sound with a crisp note at high RPM
- Carbon fiber end cap for a custom look
- P1X power tip for improved flow and sound
Pros: Exceptional sound quality; Lightweight carbon fiber accents
Cons: Fitment may require minor adjustments; Not as durable as all-metal systems
7. Dynomax Race Bullet Mufflers: Best Budget
The Dynomax Race Bullet Mufflers are a budget-friendly option for Low Rider ST owners who want a loud exhaust without spending much. Based on owner feedback, these mufflers produce an aggressive, straight-through sound that is very loud. They are lightweight and compact, making them easy to install if you have the tools. However, they are universal fit and may require custom fabrication to fit properly, and the absence of heat shields can pose a burn risk.
This exhaust is not recommended for riders who want a quality, bolt-on solution. The lack of heat shields and potential fitment issues make it less safe and convenient. It is best for budget-conscious builders who are comfortable with modifications and prioritize volume over everything else. For most Low Rider ST owners, investing in a model-specific system is worth the extra cost.
- Aggressive, loud sound at a low price point
- Straight-through design for maximum flow
- Lightweight and compact
Pros: Very affordable; Loud and aggressive
Cons: Universal fit may require fabrication; Lack of heat shields can be a safety concern
Frequently Asked Questions
Will an exhaust upgrade void my Low Rider ST warranty?
An exhaust upgrade can potentially void your warranty if it causes damage to the engine or emissions system. Harley-Davidson dealerships may deny claims if they determine the aftermarket exhaust led to the issue. However, under the Magnuson-Moss Warranty Act, the manufacturer must prove the modification caused the problem. To be safe, check with your dealer and consider using a tuner that complies with emissions regulations.
Do I need a fuel tuner with a new exhaust?
For slip-on mufflers, a fuel tuner is often not required, but for full 2-into-1 systems, it is highly recommended. Without a tuner, the engine may run lean, leading to overheating and potential damage. Based on owner feedback, tuning also optimizes performance gains. Always consult the exhaust manufacturer’s recommendations.
What is the difference between 2-into-1 and slip-on exhausts?
A 2-into-1 exhaust merges both cylinder pipes into one muffler, improving scavenging and increasing horsepower and torque. Slip-ons replace only the mufflers, retaining the stock header pipes. Slip-ons are easier to install and cheaper, but offer less performance gain. 2-into-1 systems provide more power but are more expensive and may require tuning.
How loud is too loud for a Low Rider ST exhaust?
Loudness is subjective, but many states have noise limits for motorcycles, typically around 80-90 decibels at idle. Exhausts like the Bassani Road Rage or Cobra Speedster can exceed these levels. Check local laws before purchasing. If you ride in residential areas or long distances, consider a system with baffles or a less aggressive tone.
Can I install an exhaust myself on a Low Rider ST?
Slip-on mufflers are generally easy to install with basic tools and can be done in under an hour. Full 2-into-1 systems are more complex and may require removing the rear wheel or other components. Based on owner feedback, most mechanically inclined riders can handle the job, but professional installation is recommended for those unfamiliar with motorcycle exhausts.
Our Verdict
After researching and comparing the top exhausts for the Low Rider ST, our top pick is the Vance & Hines Big Radius 2-Into-1 Exhaust for its excellent balance of sound, performance, and build quality. The runner-up is the Bassani Road Rage 2-Into-1 Exhaust for riders who prioritize maximum power gains. Both systems require a fuel tuner but deliver a significant upgrade over stock.
