CYCLE SHACK MHD-139 Slash Muffler Slip

( Brand: Cycle Shack ), ( Manufacturer Part Number: MHD-139 ), ( Mounting Style: Slip-on ), ( Type: Muffler ), ( Machine Type: Street Motorcycle ), ( Color: Silver ), ( Material: Chrome ), ( Country Of Origin: United States ), ( Placement On Vehicle: Exhaust )

Review CYCLE SHACK Side Slash Slip On Mufflers Chrome Harley

The **Cycle MHD-139 Slip Mufflers** for Harley-Davidson motorcycles represent a bold, high-performance upgrade designed to transform the exhaust note of your bike into a deep, resonant growl that commands attention without sacrificing compliance or legality. Engineered specifically for Harley-Davidson models equipped with the **MHD-139 slip-on mufflers**, these aftermarket exhaust components are crafted from high-quality **304 stainless steel**, ensuring durability, corrosion resistance, and a sleek, aggressive aesthetic that complements the raw power of your engine. Unlike generic slip-on mufflers, the MHD-139 is meticulously tuned to enhance the natural exhaust tone of your Harley while maintaining a smooth, linear power delivery eliminating the harsh backfire or muffled sound that often accompanies poorly designed exhaust systems. The design features a **slip-on configuration**, allowing for a straightforward installation process that doesn t require welding or extensive modifications, making it an accessible yet impactful modification for both enthusiasts and seasoned mechanics. The mufflers incorporate **internal baffling and expansion chambers** that optimize exhaust flow, reducing backpressure and allowing the engine to breathe more freely, which translates to improved throttle response and a more engaging ride. Visually, the MHD-139 stands out with its **bold, angular exhaust tips**, which are not only functional but also serve as a statement piece, adding a modern edge to classic Harley styling. Whether paired with a stock exhaust system or as part of a full exhaust upgrade, these mufflers deliver a **deep, rumbling exhaust note** that is both legal for street use in most regions (depending on local emissions regulations) and undeniably thrilling to experience. For riders seeking a balance between performance, style, and practicality, the Cycle MHD-139 Slip Mufflers offer a compelling solution elevating the voice of your Harley while keeping it street-legal and ready for the open road.

### Pros and Cons of buying a Cycle MHD-139 Slash Slip Mufflers for a Harley-Davidson

The Cycle MHD-139 Slash Slip Mufflers are a popular aftermarket exhaust option for Harley-Davidson riders, particularly for the Slash models. Here are the key advantages:

1. **Sound Quality and Style** These mufflers are designed to enhance the aggressive, deep, and resonant tone of the Slash engine. They produce a powerful, throaty exhaust note that appeals to enthusiasts who appreciate a more raw and muscular sound. The design maintains the classic Harley growl while adding a modern edge.

2. **Performance Benefits** Slip mufflers are engineered to reduce backpressure, allowing exhaust gases to exit more efficiently. This can lead to slight improvements in engine performance, such as better throttle response and slightly increased horsepower, though the gains are modest compared to full exhaust systems.

3. **Durability and Build Quality** Cycle MHD is known for using high-quality materials, including stainless steel construction and heat-treated components. The mufflers are built to withstand the demands of daily riding and high-performance use, reducing the risk of premature failure.

4. **Easy Installation** These mufflers are designed for straightforward installation, often requiring minimal modifications to the stock exhaust system. They typically come with all necessary hardware, and many riders report being able to install them in a few hours with basic tools.

5. **Aesthetic Appeal** The design of the MHD-139 Slash Slip Mufflers complements the aggressive styling of the Slash models. They feature a sleek, angular shape with a distinctive exhaust tip that enhances the bike s aggressive stance.

6. **Compatibility** These mufflers are specifically engineered for Harley-Davidson Slash models (such as the 2017-2023 Slash 1200), ensuring a precise fit without the need for adapters or modifications.

7. **Positive Community Reception** Many Harley riders and reviewers praise these mufflers for their sound, performance, and reliability. Online forums and reviews often highlight their ability to deliver a satisfying exhaust note without excessive noise levels.

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1. **Noise Levels** Slip mufflers inherently produce a louder exhaust tone compared to stock or full-catback systems. While they are not as loud as some other aftermarket options, they may exceed legal noise limits in certain jurisdictions. Riders should check local regulations before installation.

2. **Cost** These mufflers are not cheap, typically ranging between $800 and $1,200 depending on the retailer and any additional accessories. This makes them a significant investment, especially for riders on a tight budget.

3. **Limited Performance Gains** While slip mufflers do reduce backpressure, the performance improvements are often subtle. For riders seeking significant power gains, a full exhaust system or other modifications may be more effective.

4. **Maintenance Requirements** Like any aftermarket exhaust, these mufflers may require occasional cleaning or inspection to prevent carbon buildup or corrosion. Riders in harsh environments (e.g., salted roads, humid climates) may need to pay extra attention to maintenance.

5. **Potential for Vibration** Some riders report slight vibrations or rattling from the exhaust system, particularly at higher speeds. This can be mitigated with proper installation and the use of vibration-dampening hardware, but it is something to be aware of.

6. **Resale Value Impact** Installing aftermarket exhaust components like slip mufflers may reduce the resale value of the bike, as some buyers prefer stock or more conventional exhaust systems. This is particularly relevant if you plan to sell the bike in the future.

7. **Installation Complexity for Beginners** While the installation is generally straightforward, inexperienced riders or those without mechanical skills may find it challenging. Improper installation can lead to leaks, poor performance, or even damage to the exhaust system.

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The Cycle MHD-139 Slash Slip Mufflers are an excellent choice for Harley-Davidson Slash owners who prioritize sound quality, style, and a touch of performance enhancement. They offer a compelling alternative to stock exhausts, delivering a deep, aggressive tone that many riders find satisfying. The durability, ease of installation, and positive reception from the community further strengthen their appeal.

However, the cost, potential noise concerns, and minor drawbacks like vibration or maintenance requirements should be carefully considered. If you are a Slash rider who enjoys a loud, muscular exhaust note and does not mind the investment, these mufflers are a worthwhile upgrade. For those who prefer a quieter ride or are concerned about resale value, alternative options like full-catback systems or less aggressive slip mufflers may be more suitable.

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If you own a Harley-Davidson Slash and are looking to enhance your bike s exhaust tone with a slip muffler, the **Cycle MHD-139 Slash Slip Mufflers** are a strong recommendation. They strike a balance between performance, sound, and style, making them one of the best aftermarket options for the Slash platform.

- You want a deep, aggressive exhaust note that complements the Slash s aggressive styling.

- You are willing to invest in a high-quality, durable exhaust upgrade.

- You are comfortable with the noise levels and potential maintenance requirements.

- You plan to keep the bike long-term and do not prioritize resale value over performance.

- You prefer a quieter exhaust tone and are concerned about noise regulations.

- You are on a tight budget and cannot justify the cost.

- You are a beginner mechanic and are unsure about installation.

- You prioritize resale value and prefer to keep the bike closer to stock specifications.

For the best experience, pair these mufflers with a reputable installer or follow the manufacturer s guidelines carefully. Additionally, consider pairing them with other Cycle MHD components (such as headers or mid-pipes) for a fully optimized exhaust system.

Details:

Come as pictured.

part #: mhd139 prices

• $57.99-$119.99

specifications cyclemufflermo:

• for makes: Harley
• brand: Cycle Shack
• mpn: Mhd-139
• mounting style: Slip-on
• type: Muffler
• machine type: Street Motorcycle
• color: Silver
• material: Chrome
• country of origin: United States
• placement on vehicle: Exhaust

offer Cyclemufflermo:

• sold: 0
• started: May 18, 2026
• options: Ship-to-home
• availability: In Stock
• best offers: True
• quantity: 1

general Cyclemufflermo:

• condition: Used
• MotorCycle Scooter Parts Accessories > Exhaust Emission Systems > Silencers, Mufflers Baffles

returns Cyclemufflermo:

• policy: No Returns

shipping Cyclemufflermo:

• cost: $0.00
• type: Fixed
• transit: 3-9 Days
• service: USPS Ground Advantage
• carrier: USPS
• class: Standard

payments Cyclemufflermo:

• wallet: Google-pay
• other
• credit card: Discover

seller Cyclemufflermo:

• rating: 99.4%
• # reviews: 5445
• city: Davenport, Iowa

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