MBRP 3504-M370849-84 Performance Exhaust Cat

( Brand: Mbrp ), ( Manufacturer Part Number: 3504-M370849-84 ), ( Part Type: Exhaust )

Review MBRP Series Performance Exhaust Arctic Cat Snowmobile fits TRAIL ZR 900 2003

The **MBRP 3504-M370849-84 Trail Performance Exhaust System** is a meticulously engineered aftermarket upgrade designed to elevate the performance, sound, and aesthetics of your **2003 Arctic Cat ZR 900** off-road motorcycle. Crafted from high-quality **409 stainless steel**, this exhaust system is built to withstand the rigorous demands of trail riding while delivering a dramatic improvement in both power and throttle response. The **dual-tone, polished finish** not only enhances the visual appeal of your ZR 900 but also provides a sleek, modern contrast to the stock exhaust, giving your bike a more aggressive and sport-tuned appearance. At its core, this exhaust features a **high-flow design** with optimized internal baffling, allowing for superior exhaust gas evacuation and reduced backpressure, which translates to increased horsepower and torque across the rev range. The system is also equipped with **heat-shielded mounting brackets** to minimize heat transfer to the frame and handlebars, ensuring rider comfort during extended rides. Whether you're tackling rough terrain, pushing the limits on the trail, or simply seeking a more engaging riding experience, the MBRP exhaust system delivers a noticeable boost in performance while maintaining durability and reliability. Perfect for enthusiasts who demand both power and precision, this upgrade is a seamless fit for the ZR 900, offering a balance of performance gains and stylish refinement that sets it apart from standard OEM components.

### **Pros and Cons of buying a MBRP 3504-M370849-84 Trail Performance Exhaust for a 2003 Arctic Cat ZR 900**

1. **Improved Sound and Tone** The Trail Performance exhaust is designed to enhance the engine s exhaust note, giving it a deeper, more aggressive sound while maintaining a balanced tone. This is often preferred by riders who enjoy a more engaging exhaust sound without excessive noise.

2. **Better Backpressure and Horsepower** The exhaust system is engineered to optimize flow, which can improve throttle response and slight horsepower gains, especially in off-road applications where airflow efficiency matters.

3. **Durability and Quality Construction** MBRP (Mega Bass Racing Products) is known for manufacturing high-quality exhaust systems with heavy-duty materials, including stainless steel construction that resists corrosion and wear over time.

4. **Compatibility with Stock Components** The exhaust is designed specifically for the 2003 Arctic Cat ZR 900, ensuring a proper fit without requiring modifications to the stock frame or mounting points.

5. **Off-Road Performance Focus** The Trail Performance line is tailored for dirt bikes, meaning it is built to handle the rigors of off-road use, including mud, rocks, and rough terrain, without compromising structural integrity.

6. **Easier Installation** Compared to aftermarket exhausts that require extensive modifications, this system is designed for straightforward installation, often requiring only basic tools and minimal adjustments.

7. **Aesthetic Appeal** The exhaust has a sleek, aggressive look that enhances the bike s appearance, which can be appealing to riders who prioritize both performance and style.

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1. **Noise Levels** While the sound is improved, the exhaust still produces a loud, deep tone that may not be suitable for riders who prefer a quieter, more street-friendly exhaust note. Some riders may find it too aggressive for public trails or urban areas.

2. **Potential Backpressure Concerns** While the exhaust is designed for better flow, some riders report that it can introduce slight backpressure, which may affect high-RPM performance or exhaust scavenging in extreme conditions. This is more noticeable in heavily modified setups.

3. **Cost** Compared to stock exhausts or basic aftermarket options, this exhaust is a premium product, which may be an investment for riders on a tighter budget. However, it is often more affordable than high-end racing exhausts.

4. **Weight** Stainless steel exhausts are generally heavier than aluminum or lightweight aftermarket options. While this does not significantly impact handling, it may be a consideration for riders who prioritize minimal weight.

5. **Limited Customization** Unlike some aftermarket exhausts that offer multiple tip sizes or tuning options, this exhaust comes in a fixed configuration, limiting further customization for those seeking specific sound or performance tweaks.

6. **Potential Warranty Issues** Installing an aftermarket exhaust may void the manufacturer s warranty on the engine or other components, depending on Arctic Cat s policies. Riders should confirm this before purchasing.

7. **Installation Skill Level** While the exhaust is designed for easy installation, improper fitting or welding can lead to leaks or performance issues. Riders without mechanical experience may need professional help, adding to the cost.

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The **MBRP 3504-M370849-84 Trail Performance Exhaust** is a well-regarded upgrade for the 2003 Arctic Cat ZR 900, offering a balance of improved sound, performance, and durability. It is particularly well-suited for riders who prioritize off-road capability, a deeper exhaust tone, and a high-quality, long-lasting exhaust system. However, it may not be ideal for those seeking a quieter sound or minimal weight, as it introduces slight backpressure and added weight.

For most riders who want a noticeable upgrade without extreme modifications, this exhaust is a solid choice. It strikes a balance between performance gains, sound enhancement, and practicality, making it a recommended option for those looking to enhance their ZR 900 s exhaust system.

If you are a rider who enjoys a deeper, more engaging exhaust note and values durability and off-road performance, the **MBRP Trail Performance Exhaust** is a worthwhile investment. Ensure you have the necessary tools or access to a mechanic for installation, and confirm that your riding environment allows for the louder exhaust tone. For riders who prefer a quieter setup or minimal modifications, consider alternative exhaust options or stick with the stock system. Overall, this exhaust is a **highly recommended upgrade** for those seeking a noticeable improvement in sound and performance.

Details:

Brand: MBRP, model Number: 3504-M370849-84. Compatibility: Years: Make: model: Application: Notes: 2003 - 2003 Arctic Cat Mountain Cat 800 EFI 144, 2002 Arctic LE 151, Cater EFI, 2001 8 900 Early Build, Sno Pro, 9 2001 Arctic LE, 1M, Build. I need to exchange an item. Parts without fitment are to be assumed universal and may require vehicle modification.

MBRP Trail Series Performance Exhaust for 2003 Arctic Cat ZR 900 Snowmobile: 2 Year warranty, Improved throttle response, Quick and simple installation, Huge weight savings, Made from 304 stainless, Uses stock springs hangers, Dino proven performance, Flo-bench tested back pressure. This is helpful if you are buying multiple items.

part #: 3504m37084984 price

• $364.99

specifications exhaustsnowmobilee:

• for models: Zr, 900, Trail
• for makes: Arctic, Arctic-cat
• for years: 2003
• brand: Mbrp
• mpn: 3504-m370849-84
• part type: Exhaust

payments exhaustsnowmobilee:

• credit card: Mastercard
• wallet: Apple-pay
• other

seller exhaustsnowmobilee:

• city: Boise, ID
• rating: 99.8%
• # reviews: 78581

returns exhaustsnowmobilee:

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

general exhaustsnowmobilee:

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

offer exhaustsnowmobilee:

• started: February 26, 2026
• sold: 0
• options: Ship-to-home
• quantity: 7
• availability: In Stock

shipping exhaustsnowmobilee:

• class: Standard
• cost: $0.00
• service: Standard
• type: Fixed
• transit: 2-5 Days

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