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  3. MBRP 5408-M356657-98

MBRP 5408-M356657-98 Performance Exhaust Silencer Ski Doo

fits model: Std, Mx, 800. make: Ski-doo. year: 2004–2007.

5408-m356657-98 Mbrp Std Series Performance Exhaust Silencer For 2004-2007 Ski-doo Mx Z 800

( Brand: Mbrp ), ( Manufacturer Part Number: 5408-M356657-98 ), ( Part Type: Exhaust Silencer )

Review MBRP Series Performance Exhaust Silencer Ski doo fits STD MX 800 2004–2007

The **MBRP 5408-M356657-98 STD Performance Exhaust Silencer** is a meticulously engineered aftermarket upgrade designed specifically for the **2004 2007 Ski-Doo MX 800**, delivering a harmonious blend of enhanced performance, refined sound, and uncompromising durability. Crafted from high-grade **304 stainless steel**, this silencer is built to withstand the rigorous demands of off-road riding, ensuring long-lasting reliability even under the most extreme conditions. The **standard performance tuning** of this exhaust system is optimized to maintain a balanced power delivery while subtly amplifying the natural growl of the MX 800 s twin-cylinder engine, creating a deep, resonant exhaust note that resonates with both the rider s ears and the surrounding environment. Unlike generic aftermarket replacements, this silencer is **directly compatible** with the factory exhaust headers and mounting points, eliminating the need for costly modifications or adaptations, while still offering a noticeable improvement in both throttle response and overall engine efficiency.

The design of the **MBRP 5408-M356657-98** incorporates a **precision-engineered internal baffling system**, which not only reduces noise levels to meet legal standards in most regions but also enhances exhaust flow, allowing for a smoother and more aggressive power curve. The **smooth, tapered exhaust tip** not only contributes to the system s aesthetic appeal but also helps in directing exhaust gases away from the rider and passenger, improving overall comfort during extended rides. Built to **OEM specifications**, this silencer ensures a seamless fit with the Ski-Doo s stock exhaust system, maintaining the original functionality of the catalytic converter (where applicable) while still providing the performance gains expected from a quality upgrade. Whether you re tackling rugged trails, carving through deep snow, or pushing the limits on the track, this silencer delivers a **noticeable yet refined** exhaust tone that enhances the MX 800 s already formidable presence, making it a standout choice for riders who demand both performance and precision.

The **MBRP 5408-M356657-98 STD Performance Exhaust Silencer** is designed for the 2004 2007 Ski-Doo MX 800, offering a balance between performance and compliance with emissions regulations. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Legal Compliance**

The exhaust is designed to meet **EPA and CARB emissions standards** for the specified model years, meaning it can be legally installed without triggering a check engine light or violating emissions regulations. This is a critical advantage over aftermarket exhausts that may not comply.

2. **Performance Enhancement**

While not as aggressive as full performance exhausts, this silencer is labeled as a "performance" model, suggesting it may improve exhaust flow slightly compared to the stock unit. This can contribute to a minor increase in horsepower and throttle response, especially when paired with other performance upgrades.

3. **Stock Fitment**

The part is engineered to replace the original exhaust silencer directly, ensuring a proper fit without the need for modifications to the frame or mounting points. This makes installation straightforward for those with basic mechanical skills.

4. **Durability**

MBRP (Motorcycle & Bike Repair Parts) is a reputable brand known for producing high-quality aftermarket parts. The silencer is likely constructed from **stainless steel or high-grade materials**, which should resist corrosion and last longer than some cheaper alternatives.

5. **Sound Modification**

The exhaust may offer a slightly deeper or more aggressive tone compared to the stock unit, though it will not be as loud as a full performance or cat-back exhaust. This can enhance the sound without violating noise regulations.

6. **Ease of Installation**

As a direct replacement, the silencer should require minimal tools and time to install, typically involving only the removal of the old unit and the attachment of the new one with the provided hardware.

7. **Compatibility with Other Upgrades**

Since it meets emissions standards, this exhaust can be paired with other performance parts (e.g., air filters, carburetor upgrades) without risking legal or operational issues.

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### **Cons**

1. **Limited Performance Gain**

The exhaust is labeled as a "standard performance" model, which implies it is not as aggressive as a full performance or cat-back exhaust. Expect only modest improvements in power and exhaust note compared to the stock unit. For significant gains, a more advanced exhaust system would be required.

2. **No Catalytic Converter Replacement**

If your Ski-Doo s stock exhaust includes a catalytic converter (common in later model years), this silencer is likely a **replacement for the muffler section only**, not the entire exhaust system. This means you would still need the stock catalytic converter, limiting the overall performance benefit.

3. **Price Relative to Benefits**

The cost of this exhaust may not justify the minor performance improvements it offers, especially if you are primarily looking for a significant power boost. For the price, you might consider a more aggressive exhaust or other upgrades that provide better returns.

4. **Potential Weight**

While not excessively heavy, the silencer may add slight weight to the exhaust system compared to a lighter aftermarket option. This could have a negligible impact on handling but is worth noting for those prioritizing weight reduction.

5. **Installation Complexity**

Although a direct replacement, installing the exhaust may require removing the catalytic converter (if applicable) and possibly the heat shield. This could add time and complexity to the installation process, especially for beginners.

6. **Limited Customization**

This is a standard performance part, not a custom or high-flow exhaust. If you are looking for a unique sound or significant power gains, you would need to explore other options.

7. **Warranty and Return Policies**

While MBRP parts are generally reliable, always check the warranty and return policies before purchasing. Some aftermarket parts may have limited warranties or require proof of purchase for returns.

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### **Conclusion**

The **MBRP 5408-M356657-98 STD Performance Exhaust Silencer** is a **practical choice** for Ski-Doo MX 800 owners who want a **legal, easy-to-install upgrade** that offers a slight performance improvement and a more aggressive sound without violating emissions regulations. It is best suited for riders who:

- Want to stay compliant with emissions laws.

- Prefer a straightforward, no-fuss upgrade.

- Are not seeking dramatic power gains.

- Have a basic understanding of exhaust installation.

However, if your primary goal is **maximizing performance**, this exhaust may not be the best value. For more aggressive power and sound, consider a **full performance exhaust system** (e.g., from brands like **MBRP, KTM Performance, or others**) that replaces the entire exhaust, including the catalytic converter where applicable.

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### **Recommendation**

- **Buy this exhaust if:**

- You want a **legal, compliant upgrade** that improves exhaust flow slightly.

- You are satisfied with modest performance gains and a deeper sound.

- You prefer a **direct replacement** that is easy to install.

- You are not planning to pursue aggressive modifications in the future.

- **Consider alternatives if:**

- You want **significant power gains** (opt for a full performance exhaust).

- You are open to **custom or high-flow exhausts** for a more aggressive sound.

- You are willing to explore **cat-back exhaust systems** for better airflow and cooling.

- You are on a tight budget and want to prioritize other upgrades (e.g., air intake, clutch, or suspension).

For most riders looking for a **balanced, legal upgrade**, this MBRP exhaust is a solid choice. However, if performance is the top priority, research more aggressive options to ensure you are getting the best possible return on investment. Always verify compatibility with your specific model year and consult with a mechanic if unsure about installation.

Details:

This is helpful if you are buying multiple items. I need to exchange an item. 2003 - 2007 Ski-Doo MX Z 600 X. Parts without fitment are to be assumed universal and may require vehicle modification.

Brand: MBRP, model Number: 5408-M356657-98. Muffler body, Louder than trail version, Lighter stock. MBRP Std Series Performance Exhaust Silencer for 2004 - 2007 Ski-Doo MX Z 800 : 1 year warranty, Better throttle response, Proven HP gains on Dino, Lighter weight, Easy install, Stainless steel body, Great Sound, Direct fit to stock exhaust, 5in. 2003 - 2007 Ski-Doo MX Z 600 Renegade.

part #: 5408m35665798 price

  • $334.99

specifications exhaustsnowmobilee:

  • for models: Std, Mx, 800
  • for makes: Ski-doo
  • for years: 2004-2007
  • brand: Mbrp
  • mpn: 5408-m356657-98
  • part type: Exhaust Silencer

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

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offer exhaustsnowmobilee:

  • availability: In Stock
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  • options: Ship-to-home
  • started: March 28, 2026
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for models: std, mx, 800, for makes: ski-doo, for years: 2004-2007, part type: exhaust silencer,
category: snowmobile parts > exhaust, sku: 9850762589572722,
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  • New. Offer #1 priced at $334.99 + $0.00 shipping estimate = $334.99* total. 2003 - 2007 Ski-Doo MX Z 800 Renegade. Great MBRP Sound.FREE SHIPPING

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