MBRP 5534-M374909-44 Performance Exhaust Cat

( Brand: Mbrp ), ( Manufacturer Part Number: 5534-M374909-44 ), ( Part Type: Exhaust )

Review MBRP Series Performance Exhaust Arctic Cat fits TRAIL MOUNTAIN EFI 800 2002

The **MBRP 5534-M374909-44 Trail Performance Exhaust System** is a meticulously engineered aftermarket upgrade designed specifically for the **2002 Arctic Cat Mountain 800 EFI**, delivering a harmonious blend of enhanced performance, refined sound, and uncompromising durability tailored to the demands of off-road and trail riding. Crafted from high-grade **409 stainless steel**, this exhaust system is built to withstand the harshest conditions, from dust-laden trails to rugged backcountry adventures, ensuring long-lasting reliability without the risk of corrosion or premature wear. The **dual-wall construction** not only provides superior insulation but also reduces heat transfer to the surrounding components, protecting critical engine and exhaust system parts while maintaining optimal operating temperatures for peak efficiency.

At the heart of this exhaust s performance is its **optimized flow design**, featuring a **3.5-inch diameter main exhaust pipe** that minimizes backpressure while maximizing airflow through the engine s exhaust gases. This precision-engineered tubing is paired with a **high-flow catalytic converter** and **silencer assembly**, striking a balance between **throttle response and legal sound compliance** ideal for riders who demand both power and discretion. The **magnetic muffler** incorporated into the system not only tames the exhaust note into a deep, resonant growl but also filters out abrasive particles, prolonging the life of the exhaust s internal components. For added convenience and functionality, the system includes **heat shields** to protect the surrounding chassis and frame from excessive heat buildup, reducing the risk of damage to sensitive wiring and hydraulic lines.

Installation of the MBRP Trail Performance Exhaust is straightforward yet precise, requiring minimal modifications to the stock setup. The system is designed to **bolt-on directly** to the factory exhaust ports, eliminating the need for extensive fabrication or welding, which saves both time and labor. The **pre-drilled and pre-aligned mounting brackets** ensure a secure, vibration-dampened fit, while the **flexible exhaust hoses** accommodate minor frame flex without compromising performance. Whether you re pushing the limits on steep climbs, navigating tight switchbacks, or simply enjoying the raw power of your Arctic Cat, this exhaust system transforms the Mountain 800 EFI into a more responsive, engaging, and exhilarating off-road machine. With its **rugged construction, improved airflow, and refined exhaust tone**, the MBRP 5534-M374909-44 is not just an upgrade it s a statement of intent for riders who refuse to settle for anything less than exceptional trail performance.

### **Pros and Cons of the MBRP 5534-M374909-44 Trail Performance Exhaust for a 2002 Arctic Cat Mountain 800 EFI**

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 level of control that suits off-road use. This can make the machine feel more responsive and engaging.

2. **Better Exhaust Flow and Backpressure Reduction** The exhaust system is optimized for improved airflow, which can help reduce backpressure on the engine. This may lead to slightly better throttle response and smoother power delivery, especially under load.

3. **Durability and Quality Construction** MBRP (Mountain Bike Racing Products) is known for producing high-quality aftermarket exhaust systems that are built to withstand the rigors of off-road use. The materials and welding appear to be robust, reducing the risk of premature failure.

4. **Compatibility with EFI Systems** Since the Arctic Cat Mountain 800 EFI uses electronic fuel injection, a properly tuned exhaust system like this one can help the engine run more efficiently without requiring major adjustments to the ECU (though some tuning may still be necessary for optimal performance).

5. **Aesthetic Appeal** The exhaust system has a sporty, aggressive look that can enhance the appearance of the machine, giving it a more customized and off-road-focused appearance.

6. **Potential for Increased Horsepower (Mildly)** While the gains are typically modest, a well-designed exhaust system can help the engine breathe slightly better, which may result in a small increase in horsepower and torque, especially in the mid-range RPMs.

7. **Easier Installation** Compared to some factory exhaust systems, aftermarket options like this one are often designed for easier removal and installation, reducing labor time and complexity.

---

1. **Limited Performance Gains** The improvements in power and throttle response are usually subtle. For most riders, the differences may not be dramatic enough to justify the cost unless you are particularly sensitive to exhaust tone or minor performance tweaks.

2. **Potential for Increased Exhaust Temperatures** A more efficient exhaust system can sometimes lead to slightly higher exhaust gas temperatures, which may affect catalytic converter longevity (if equipped) or require monitoring to prevent overheating.

3. **Noise Regulations** Depending on local laws or riding areas, some aftermarket exhaust systems may produce sound levels that exceed legal limits. Always check local regulations before installing a louder exhaust.

4. **Cost** The price of this exhaust system is higher than a basic factory replacement. For a 2002 Arctic Cat, the cost may not be justified unless you are specifically looking to enhance the sound or minor performance.

5. **Tuning May Be Required** While the exhaust is designed to work with EFI systems, some riders report that minor tuning adjustments (such as recalibrating the ECU or adjusting fuel maps) may be necessary to optimize performance and prevent issues like rich or lean running.

6. **Potential for Fitment Issues** Although MBRP exhausts are generally well-made, there is always a small risk of fitment issues, especially if the machine has been heavily modified or if the exhaust system was not installed correctly. Proper installation is critical to avoid leaks or damage.

7. **Maintenance Considerations** A more aggressive exhaust system may require more frequent inspections of the muffler, hangers, and mounting points to ensure everything remains secure, particularly in rough terrain.

---

The **MBRP 5534-M374909-44 Trail Performance Exhaust** is a solid choice for riders who want to enhance the sound and minor performance of their 2002 Arctic Cat Mountain 800 EFI without undertaking major modifications. It offers a good balance of durability, quality, and aesthetic appeal, and it is well-suited for off-road use. However, the performance gains are modest, and the cost may not be justified for casual riders unless sound and minor tuning improvements are a priority.

For riders who prioritize **sound enhancement, slight performance tweaks, and a sportier look**, this exhaust system is a worthwhile upgrade. For those who are primarily concerned with reliability and minimal modifications, a factory-style replacement or a more budget-friendly aftermarket option might be preferable.

---

- **Install if:** You enjoy a deeper, more aggressive exhaust tone, want minor performance improvements, and are willing to invest in a high-quality aftermarket system. Ensure you have the skills or access to professional installation to avoid fitment issues.

- **Avoid if:** You are on a tight budget, do not care about sound changes, or prefer to keep modifications minimal. In that case, a factory replacement or a simpler aftermarket exhaust may suffice.

- **Additional Considerations:** If you plan to further modify the bike (e.g., adding a turbo or larger air filter), this exhaust could serve as a good foundation for future upgrades. Always check compatibility with any other modifications you have in mind.

Ultimately, this exhaust system is a **good mid-range upgrade** for riders who want a noticeable but not extreme change to their Arctic Cat s performance and sound.

Details:

Brand: MBRP, model Number: 5534-M374909-44. This is helpful if you are buying multiple items. MBRP Trail Series Performance Exhaust for 2002 Arctic Cat Mountain 800 EFI LE 151: 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. 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, Son 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.

part #: 5534m37490944 price

• $364.99

specifications exhaustsnowmobilee:

• for models: Efi, 800, Trail, Mountain
• for makes: Arctic, Arctic-cat
• for years: 2002
• brand: Mbrp
• mpn: 5534-m374909-44
• part type: Exhaust

general exhaustsnowmobilee:

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

payments exhaustsnowmobilee:

• credit card: Diners-club
• wallet: Paypal
• other

offer exhaustsnowmobilee:

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

returns exhaustsnowmobilee:

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

shipping exhaustsnowmobilee:

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

seller exhaustsnowmobilee:

• rating: 99.8%
• city: Boise, ID
• # reviews: 78543

Mbrp 5534-M374909-44 Is Similar To:

• 00000000 Mbrpperformance Exhaust Mbrp Performance 882963116833 (38.2% similar) Very nice used condition. I will get pics up soon was on a 2007 Yamaha hazer low miles...(December 6th, 2017)
• 1026012 Mbrp Performance Exhaust Race (40.9% similar) 95 size: 241-90102TO 241-90103T 241-90200T 241-90200R 241-90201T 241-90301T 241-90301R Mbrp performance EXHAUST1 year warranty better throttle response proven hp gains on moonlighter weight easy install stainless steel body great sound direct fit to stock exhaust trail SERIES6 diameter muffler body ...(April 21st, 2017)
• 1030113 Mbrp Performance Exhaust Standard Series (43.5% similar) Help buy shipping-globally...(February 13th, 2017)
• 103x206 Mbrp Performance Exhaust Standard (42.7% similar) ...(March 29th, 2017)
• 1040012 Mbrp Performance Exhaust Race (40.9% similar) Photos are for illustration purposes only. Buyer should verify part fitment with manufacturer...(November 23rd, 2017)
• 1050515 Mbrp Race Series Performance Exhaust (49.3% similar) 7AM-8PM Mon Fri, 7AM-6PM sat sun. Diameter muffler body loudest version of canister very light weight the air resources board Arab does not permit use aftermarket emission-related parts that alter fuel ratio an emission-controlled vehicle. Specs color - primary silver canister muffler type silencer ...(December 21st, 2016)
• 1066215 Mbrpperformance Exhaust Mbrp Performance (39.1% similar) Its stainless steel casing is hard-wearing and always looks great while the laser-cut brackets ensure a perfect fit easy installation. Manufacturer: Mbrp inc. Better throttle response 2 hp GAIN15 lb weight savings easy install stainless steel body great Mbrp sound direct fit to stock EXHAUST4 ...(August 21st, 2017)
• 1070217 Mbrpperformance Exhaust Mbrp Performance 882963116703 (39.7% similar) Maximum exhaust flow is achieved through Mbrp exclusive sound attenuation design. Brand new Mbrp performance race series snowmobile muffler for ski-door stainless product features: this canister was built racing. Its stainless steel casing is hard-wearing and always looks great while the laser-cut ...(October 27th, 2017)
• 1095306 Mbrp Performance Exhaust Trail (43.8% similar) ...(March 23rd, 2017)
• 1097526 Mbrp Performance Exhaust Trail (43.8% similar) ...(March 22nd, 2017)
• 1110415 Mbrp Performance Exhaust Race (40.9% similar) As such accept back of any or hassles. Id: mfg price: 299. Never ship an item back in the manufacturers packaging, always use over-box. Mbrp performance exhaust race silencer mfg: mfg...(September 22nd, 2017)