MBRP 7138-M432117-28 Performance Exhaust

( Brand: Mbrp ), ( Manufacturer Part Number: 7138-M432117-28 ), ( Part Type: Exhaust )

Review MBRP Series Performance Exhaust Polaris fits TRAIL SWITCHBACK 600 2017–2018

The **MBRP 7138-M432117-28 Trail Performance Exhaust System** is a meticulously engineered aftermarket upgrade designed to elevate the performance, sound, and aesthetics of the 2017-2018 Polaris 600 Switchback, catering to riders who demand both raw capability and refined handling. Crafted from high-grade, heat-resistant stainless steel, this exhaust system features a **dual-tone, high-flow design** that not only enhances the machine s aggressive visual presence but also optimizes airflow for improved throttle response and power delivery. The **M432117-28** model incorporates a **3.5-inch diameter main pipe** with a **2.5-inch diameter mid-pipe**, engineered to reduce backpressure while maintaining a balanced exhaust note that delivers a deep, resonant growl ideal for trail riding where both performance and tone matter. The system is built with **precision-welded joints and reinforced clamps**, ensuring durability and reliability across rough terrain, while the **heat-shielded construction** protects surrounding components from excessive heat buildup. Compatible with the stock catalytic converter and air cleaner, this exhaust is a straightforward bolt-on installation that requires minimal modification, making it an accessible yet high-performance choice for riders looking to sharpen their Switchback s edge without sacrificing functionality. Whether tackling technical trails or cruising through open backcountry, the MBRP exhaust system transforms the 600 Switchback into a more responsive, engaging, and visually striking off-road machine.

### **Pros and Cons of buying a MBRP 7138-M432117-28 Trail Performance Exhaust for 2017-2018 Polaris 600 Switchback**

1. **Improved Exhaust Flow and Sound** The exhaust is designed to enhance airflow, which can lead to better engine performance and a more aggressive, sportier exhaust note. This is particularly noticeable at higher RPMs, making the Switchback feel more responsive.

2. **Lightweight Construction** The exhaust is made from high-quality stainless steel, which is both durable and significantly lighter than stock exhaust systems. This reduction in weight can improve handling and acceleration.

3. **OEM Fitment with Upgrades** While it is an aftermarket part, it is designed to fit the 2017-2018 Polaris 600 Switchback seamlessly, maintaining the stock mounting points and connections. This ensures a cleaner installation without the need for modifications.

4. **Enhanced Durability** The stainless steel construction is resistant to corrosion and rust, which is beneficial for off-road use where the exhaust may be exposed to mud, water, and other elements.

5. **Positive Feedback from Users** Many riders report improved throttle response and a more engaging riding experience after installing this exhaust. The slight performance boost can make the Switchback feel more agile, especially in technical terrain.

6. **Aesthetic Appeal** The exhaust has a sleek, modern design that can give the Switchback a more aggressive and customized look, which is appealing to riders who enjoy personalizing their bikes.

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1. **Minimal Performance Gain** While the exhaust does improve airflow, the gains in horsepower and torque are modest. For most riders, the primary benefit will be the sound and slight responsiveness rather than a dramatic power increase.

2. **Potential Backpressure Issues** Some riders report that the exhaust note can be slightly louder than desired, which may not appeal to those who prefer a quieter, more refined sound. Additionally, if not properly tuned, there could be minor backpressure issues that affect engine efficiency.

3. **Cost Compared to Stock** The aftermarket exhaust is more expensive than the stock unit, and while it offers upgrades, the price may not justify the purchase for riders who are primarily concerned with reliability and simplicity.

4. **Installation Complexity** While the exhaust is designed for easy installation, it still requires removing the stock exhaust, which involves disconnecting the muffler, heat shield, and possibly the catalytic converter (if equipped). This may not be a straightforward process for inexperienced riders.

5. **Potential Catalytic Converter Compliance** If your Switchback is equipped with a catalytic converter (common in some markets), you ll need to ensure the new exhaust is compatible. Some aftermarket exhausts may require a different muffler or tuning to meet emissions standards.

6. **Durability Concerns in Harsh Conditions** While stainless steel is durable, prolonged exposure to extreme off-road conditions (e.g., sharp rocks, deep mud) could still lead to dents or minor wear over time. Regular maintenance is recommended.

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The MBRP 7138-M432117-28 Trail Performance Exhaust is a solid aftermarket upgrade for the 2017-2018 Polaris 600 Switchback, offering noticeable improvements in exhaust tone, lightweight construction, and slight performance enhancements. It is well-suited for riders who prioritize a more engaging riding experience, a sportier look, and are willing to invest in a quality aftermarket part. However, the gains are not dramatic, and the cost may not be justified for riders who are primarily concerned with stock reliability or prefer a quieter exhaust note.

For riders who enjoy customizing their bikes and want a noticeable upgrade without significant modifications, this exhaust is a worthwhile consideration. Those who prefer stock performance, minimal changes, or a quieter ride may find the benefits less compelling.

If you are looking to enhance the sound, feel, and slight performance of your 2017-2018 Polaris 600 Switchback, the MBRP Trail Performance Exhaust is a **strong recommendation**. Ensure you have the necessary tools and confidence for installation, and consider pairing it with a high-quality exhaust tip or muffler to further customize the sound. If you are unsure about the installation process, consult a professional mechanic to avoid potential issues.

For riders who are content with the stock exhaust or prefer a more subtle upgrade, this exhaust may not be necessary. However, if you enjoy the idea of a more aggressive, lightweight exhaust system, it is a reliable and well-regarded choice.

Details:

Brand: MBRP, model Number: 7138-M432117-28. Compatibility: Years: Make: model: Application: Notes: 2017 - 2022 Polaris600 RMK 144, 2017 Polaris800 PRO-RMK 174 LE, 2018 Polaris600 SwitchBack PRO-S, 2020 Polaris800 155, 2020 Polaris600 Rush 2021 Polaris600 2019 Polaris600 XCR, Adventure, Assault 2018 Polaris800 SP 155 3in. This is helpful if you are buying multiple items. 2017 - 2020 Polaris800 PRO-RMK 163 3in.

Parts without fitment are to be assumed universal and may require vehicle modification. I need to exchange an item. MBRP Trail Series Performance Exhaust for 2017 - 2018 Polaris 600 SwitchBack Assault 144 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.

part #: 7138m43211728 price

• $344.99

specifications exhaustsnowmobilee:

• for models: 600, Trail, Switchback
• for makes: Polaris
• for years: 2017-2018
• brand: Mbrp
• mpn: 7138-m432117-28
• part type: Exhaust

seller exhaustsnowmobilee:

• rating: 99.9%
• # reviews: 84456
• city: Boise, ID

offer exhaustsnowmobilee:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 9
• started: May 3, 2026

general exhaustsnowmobilee:

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

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• wallet: Paypal
• credit card: Diners-club
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shipping exhaustsnowmobilee:

• class: Standard
• type: Fixed
• cost: $0.00
• service: Standard
• transit: 3-5 Days

returns exhaustsnowmobilee:

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

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