SPEEDWERX MN-1WWS Standard Muffler Pro Kd MN/1WWS 174

( Brand: Speedwerx ), ( Manufacturer Part Number: MN/1WWS ), ( Compatible Year: 2020 2019 ), ( Compatible Model: 850 Pro-rmk 174 ), ( Bundle Description: 1 Pc Genuine Speedwerx Standard Lightweight Muffler ), ( Type: Standard Lightweight Muffler ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review SPEEDWERX Mn/1wws Standard Lightweight Muffler Polaris Pro rmk 174 Kd fits RMK 850 2019–2020

The **SpeedWerx MN/1WWS Standard Muffler** is a meticulously engineered aftermarket exhaust component designed specifically for the **2019-2020 Polaris 850 Pro-RMK 174 KD**, delivering an optimal balance of performance, durability, and compliance with emissions regulations. Crafted from high-quality **304 stainless steel**, this muffler is built to withstand the rigorous demands of off-road riding, ensuring long-lasting performance even under the most extreme conditions. The **MN/1WWS** model features a **dual-tone, polished finish** with a sleek, aggressive aesthetic that enhances the sporty look of the Pro-RMK while maintaining a professional appearance that aligns with the bike s rugged heritage. Unlike generic aftermarket exhausts, this muffler is **precisely tuned** to work seamlessly with the stock engine and exhaust system, providing a **smooth, linear power delivery** without compromising throttle response or low-end torque.

Underneath its polished exterior, the **SpeedWerx MN/1WWS** incorporates a **high-flow internal design** with strategically placed **sound-dampening baffles**, ensuring that it meets **EPA and CARB emissions standards** while still producing a **deep, resonant exhaust note** that s both satisfying and road-legal. The muffler s **expanded internal volume** optimizes exhaust scavenging, reducing backpressure and allowing the engine to breathe more efficiently, particularly during aggressive throttle applications. This results in a **noticeable improvement in mid-range power and top-end acceleration**, making the Pro-RMK feel more responsive and engaging on the trail. The **flanged connection points** are reinforced for a secure, leak-free fit, and the **pre-installed gaskets** ensure a clean installation with minimal effort, even for riders who prefer a DIY approach.

Beyond its performance benefits, the **SpeedWerx MN/1WWS** is engineered for **long-term reliability**, with a **full weldment construction** that eliminates weak points and ensures structural integrity. The **heat-treated stainless steel** resists corrosion, warping, and oxidation, even after prolonged exposure to moisture, dirt, and extreme temperatures making it an ideal choice for riders who push their machines to the limit in all types of terrain. Whether tackling rocky descents, deep mud, or high-speed jumps, this muffler maintains its performance and appearance, reinforcing the Pro-RMK s reputation as a **versatile, high-performance off-road machine**. For those seeking a **legally compliant, high-quality exhaust upgrade** that enhances both power and style without sacrificing durability, the **SpeedWerx MN/1WWS Standard Muffler** is the perfect solution for the **2019-2020 Polaris 850 Pro-RMK 174 KD**.

### Pros and Cons of buying a SpeedWerx MN/1WWS Standard Muffler for a 2019-2020 Polaris 850 Pro-RMK (174 KD)

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#### **Pros**

1. **Improved Sound and Exhaust Note**

The SpeedWerx MN/1WWS is designed to enhance the exhaust tone, providing a deeper, more aggressive sound compared to the stock muffler. It delivers a balanced growl that many riders appreciate, especially those who enjoy a more pronounced exhaust note without excessive volume.

2. **Lightweight Construction**

SpeedWerx mufflers are known for using lightweight materials, which can reduce overall weight. This may contribute to better handling and agility, particularly on off-road terrain where weight reduction is beneficial.

3. **Durability and Quality**

SpeedWerx is a reputable brand in the aftermarket exhaust industry, and their products are generally built to last. The MN/1WWS is constructed with high-quality materials, including stainless steel, which resists corrosion and wear over time. Many users report that SpeedWerx mufflers hold up well under heavy use.

4. **Compatibility and Easy Installation**

The muffler is specifically designed for the 2019-2020 Polaris 850 Pro-RMK, ensuring a proper fit without the need for extensive modifications. Installation is typically straightforward, though some basic mechanical skills may be required. SpeedWerx often provides installation guides or videos to assist riders.

5. **Potential Performance Benefits**

While the primary purpose of this muffler is aesthetic and acoustic, some riders report slight improvements in throttle response or exhaust flow. The design may reduce backpressure slightly, allowing the engine to breathe a bit better, though the gains are usually modest.

6. **Aesthetic Appeal**

The SpeedWerx MN/1WWS has a sleek, aggressive look that enhances the visual appeal of the bike. It often features a polished or matte finish, depending on the model, which can give the Polaris a more customized and sporty appearance.

7. **Warranty and Customer Support**

SpeedWerx offers warranties on their products, which can provide peace of mind in case of manufacturing defects. Their customer support is generally responsive, and they have a strong reputation for addressing issues promptly.

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#### **Cons**

1. **Noise Levels**

While the MN/1WWS is designed to improve the exhaust note, it may still produce louder exhaust tones than the stock muffler. Depending on local regulations, this could lead to complaints from neighbors or potential fines in areas with strict noise ordinances. Always check local laws before installing a louder exhaust system.

2. **Potential for Reduced Fuel Efficiency**

Some aftermarket exhaust systems, including this one, may slightly reduce fuel efficiency due to changes in exhaust flow dynamics. However, the impact is usually minimal unless the system is heavily modified.

3. **Cost**

The SpeedWerx MN/1WWS is a premium product, and the price may be higher than stock or basic aftermarket alternatives. Riders on a tight budget might opt for more affordable options, though the quality and performance gains often justify the cost.

4. **Installation Complexity**

While the installation is generally straightforward, it may require some mechanical skill or access to basic tools. Riders who are not comfortable with DIY installations might need to pay for professional installation, adding to the overall cost.

5. **Potential for Exhaust Leaks or Rust**

Over time, exhaust systems can develop leaks or rust, especially if exposed to harsh conditions like salt, mud, or extreme temperatures. While SpeedWerx products are durable, no exhaust system is entirely immune to wear and tear. Regular maintenance and inspections are recommended.

6. **Limited Customization**

The MN/1WWS is a standard muffler with a specific design. Riders looking for highly customized exhaust tones or performance gains may need to explore other options, such as variable exhaust systems or different muffler configurations.

7. **Compatibility with Other Modifications**

If the bike has other modifications, such as a different exhaust header or downpipe, the SpeedWerx MN/1WWS may not integrate as smoothly. Ensuring compatibility with all installed components is important to avoid issues like improper fit or noise.

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### **Conclusion**

The SpeedWerx MN/1WWS Standard Muffler for the 2019-2020 Polaris 850 Pro-RMK is an excellent choice for riders seeking to enhance the exhaust tone, improve the bike s appearance, and enjoy a lightweight, durable aftermarket component. Its balanced sound, high-quality construction, and ease of installation make it a popular upgrade. However, potential drawbacks such as increased noise levels, cost, and the need for regular maintenance should be considered.

If you prioritize a deeper, more aggressive exhaust note and are willing to invest in a quality aftermarket product, the SpeedWerx MN/1WWS is a strong recommendation. Always ensure that the installation complies with local regulations and that you are comfortable with the process or have access to professional help.

### **Final Recommendation**

For most riders looking to upgrade their Polaris 850 Pro-RMK with a high-quality muffler that delivers both performance and style, the **SpeedWerx MN/1WWS is highly recommended**. It strikes a good balance between sound, durability, and ease of installation. However, if noise restrictions or budget constraints are concerns, it may be worth exploring alternative options or consulting with a local dealer to discuss the best fit for your specific needs.

Details:

Speedwerx Standard Lightweight Muffler for 2019 - 2020 Polaris 850 PRO-RMK 174 kd: Status: In Stock.

part #: mn1wws price

• $517.64

specifications exhaustsnowmobilee:

• for models: Rmk, 850
• for makes: Polaris
• for years: 2019-2020
• brand: Speedwerx
• mpn: Mn/1wws
• compatible year: 2020 2019
• compatible model: 850 Pro-rmk 174
• bundle description: 1 Pc Genuine Speedwerx Standard Lightweight Muffler
• type: Standard Lightweight Muffler
• core charge: Free No Core Charge
• fitment type: Direct Replacement

payments exhaustsnowmobilee:

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

general exhaustsnowmobilee:

• condition: New
• Parts Accessories > Snowmobile Parts > Exhaust

shipping exhaustsnowmobilee:

• class: Standard
• type: Fixed
• transit: 5-11 Days
• cost: $0.00
• service: Standard

returns exhaustsnowmobilee:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

seller exhaustsnowmobilee:

• rating: 99.2%
• city: Multiple warehouses
• # reviews: 23168

offer exhaustsnowmobilee:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• sold: 0
• started: May 23, 2026

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