STRAIGHTLINE PERFORMANCE 9466-S472773-16 Pipe Ski Doo 137

( Brand: Straightline Performance ), ( Manufacturer Part Number: 9466-S472773-16 ), ( Part Type: Pipe )

Review STRAIGHTLINE PERFORMANCE Y pipe Ski doo E tec 137 fits FREERIDE 850 2018–2020

The **Straightline Performance 9466-S472773-16 Y-Pipe** is a meticulously engineered aftermarket exhaust system designed specifically for the **2018-2020 Ski-Doo Freeride E-TEC 850 137**, offering a seamless blend of performance, durability, and precision tuning. Crafted from high-grade **409 stainless steel**, this Y-pipe is built to withstand the rigorous demands of off-road riding, ensuring long-lasting reliability even under the most extreme conditions. The **16-inch diameter** design provides optimal exhaust flow, reducing backpressure while maximizing horsepower and torque, allowing your E-TEC 850 to deliver a more aggressive and responsive throttle response. The **precision-machined flanges** ensure a perfect fit with the factory exhaust headers and downpipe, eliminating leaks and maintaining a clean, high-flow path for exhaust gases. This Y-pipe is not just a performance upgrade it s a strategic enhancement that fine-tunes your Ski-Doo s power delivery, making it ideal for aggressive trail riding, aggressive cornering, and high-speed descents. Whether you're pushing the limits on technical terrain or simply seeking a more dynamic riding experience, the Straightline Performance Y-pipe transforms your Freeride into a more spirited and capable machine. Backed by Straightline s reputation for quality and performance, this component is a must-have for riders who demand nothing less than excellence from their ATV.

The **Straightline Performance 9466-S472773-16 Y-Pipe** is designed for the **2018 2020 Ski-Doo Freeride E-TEC 850 137**, offering performance upgrades over the stock exhaust system. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Straightline Performance Y-Pipe**

1. **Improved Exhaust Flow and Horsepower**

The Y-pipe is engineered with a larger diameter and optimized flow paths compared to the stock system. This reduces backpressure, allowing the engine to breathe more efficiently, which can result in noticeable power gains particularly in throttle response and top-end performance. Users often report a more aggressive exhaust note and better acceleration, especially in off-road or aggressive riding scenarios.

2. **Enhanced Durability and Heat Dissipation**

Straightline s Y-pipes are constructed from high-quality stainless steel, which is more resistant to corrosion and warping than some aftermarket alternatives. The design also improves heat dispersion, reducing the risk of engine overheating during prolonged use, particularly in demanding conditions.

3. **Compatibility and Fitment**

The part is specifically designed for the **2018 2020 Ski-Doo Freeride E-TEC 850 137**, ensuring a seamless fit without the need for additional modifications. It integrates directly with the stock exhaust headers and muffler, making installation straightforward for those with basic mechanical skills.

4. **Aesthetic Appeal**

The Y-pipe features a sleek, aggressive design that enhances the sporty look of the Freeride. The matte black finish is durable and blends well with the bike s overall appearance, though some riders may prefer a polished or custom finish for a more premium look.

5. **Reduced Weight (Compared to Some Alternatives)**

While not significantly lighter than the stock system, the Y-pipe is still lighter than some heavy-duty aftermarket exhausts, which can contribute to better handling and maneuverability, especially in tight trails or jumps.

6. **Warranty and Brand Reputation**

Straightline Performance is a well-regarded brand in the snowmobile and ATV aftermarket, known for reliability and customer support. Their products often come with warranties, providing peace of mind for buyers.

7. **Versatility for Future Upgrades**

The Y-pipe is compatible with other Straightline exhaust components, such as high-flow mufflers or cat-back systems, allowing for further tuning if desired. This makes it a good long-term investment for riders who may want to modify their bike further down the line.

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### **Cons of the Straightline Performance Y-Pipe**

1. **Cost**

The Y-pipe is not a cheap upgrade, typically ranging between **$300 $500**, depending on where it s purchased (e.g., dealer vs. online retailer). For a bike that may not see heavy daily use, this can be a significant investment relative to the perceived performance gains.

2. **Mixed Performance Gains**

While the Y-pipe does improve exhaust flow, the actual horsepower gains may be modest often in the range of **5 15 HP**, depending on tuning and riding conditions. For some riders, especially those who prioritize efficiency over raw power, the gains may not justify the cost. Additionally, the E-TEC 850 s electric assist can mask some of the benefits of a mechanical exhaust upgrade.

3. **Installation Complexity**

While the fitment is designed to be straightforward, installing the Y-pipe may require removing the stock exhaust system, which involves disconnecting the muffler, headers, and possibly the catalytic converter (if equipped). This can be a time-consuming process for inexperienced riders, and improper installation could lead to leaks or damage.

4. **Noise Levels**

The Y-pipe will make the exhaust note significantly louder than stock, which may not be ideal for riders who prefer a quieter ride or operate in areas with noise restrictions. Ski-Doos are already loud, and some jurisdictions may have limits on decibel levels, potentially leading to fines or complaints from neighbors.

5. **Potential for Increased Maintenance**

A more aggressive exhaust system can expose the engine to slightly higher temperatures, which may increase wear on components like gaskets, seals, or even the catalytic converter (if present). While the Y-pipe itself is durable, riders should monitor these areas for signs of premature failure.

6. **Limited Off-Road Advantage**

The power gains from the Y-pipe are more noticeable in **straight-line speed and acceleration** rather than off-road agility or climbing ability. For riders who prioritize trail handling and maneuverability over top-end speed, the benefits may be less impactful.

7. **Stock Exhaust May Still Be Sufficient**

If the bike is primarily used for casual riding, grooming, or light off-roading, the stock exhaust system may already provide adequate performance. The Y-pipe is more of a "performance" upgrade rather than a "necessity," meaning the return on investment may not be as high for all users.

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### **Conclusion**

The **Straightline Performance 9466-S472773-16 Y-Pipe** is a solid upgrade for the **2018 2020 Ski-Doo Freeride E-TEC 850 137**, offering tangible benefits in exhaust flow, durability, and aesthetics. It is particularly well-suited for riders who:

- Seek noticeable power gains and a more aggressive exhaust tone.

- Prioritize off-road performance and straight-line speed.

- Want a high-quality, brand-backed component with good longevity.

- Plan to further modify their bike in the future.

However, the upgrade is not without drawbacks. The cost, mixed performance gains, and potential noise concerns may deter some riders, especially those who use their Freeride primarily for utility or light recreational use. Additionally, the installation requires some mechanical skill, and the actual power improvements may not be as dramatic as advertised.

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### **Recommendation**

- You are an aggressive rider who wants to maximize power and throttle response.

- You enjoy the sound of a high-performance exhaust and don t mind the noise.

- You plan to invest in other performance upgrades (e.g., headers, muffler, or tuning) in the future.

- You value durability and a brand with a good reputation for aftermarket parts.

- You are comfortable with installation or have access to a mechanic who can handle it.

- You primarily use your Freeride for grooming, light trails, or utility work where power gains are negligible.

- You operate in noise-restricted areas or prefer a quieter ride.

- You are on a tight budget and the stock exhaust system meets your needs.

- You lack confidence in installing exhaust components yourself.

- You prioritize off-road handling and climbing ability over top-end speed.

- If you re unsure about the Y-pipe alone, consider pairing it with a **high-flow muffler** or **cat-back exhaust system** for more noticeable gains.

- For a more budget-friendly option, explore **aftermarket mufflers or Y-pipes from other brands** (e.g., Arctic Cat, Polaris, or lesser-known manufacturers) that may offer similar performance at a lower cost.

- If you re open to tuning, a **standalone exhaust upgrade** (like the Y-pipe) may be more effective when combined with **ECU tuning or a performance chip** to fully optimize the engine s potential.

Ultimately, the Straightline Y-pipe is a **worthwhile upgrade for performance-oriented riders**, but it s not a universal solution. Weigh the pros and cons against your riding style and budget to determine if it s the right fit for your 2018 2020 Ski-Doo Freeride.

Details:

Increase of 2-10 horsepower depending on Y-pipe application. No jetting modifications needed with just a Y-pipe. Available in ceramic or black high-temperature paint. 2018 - 2022 Ski-Doo Freeride E-TEC 850 146.

This is helpful if you are buying multiple items.: Brand: Straightline Performance, model Number: 9466-S472773-16. I need to exchange an item. Parts without fitment are to be assumed universal and may require vehicle modification.

Straightline Performance Y-Pipe for 2018 2020 Ski-Doo Freeride E-TEC 850 137: Are a direct bolt-on.

part #: 9466s47277316 price

• $254.65

specifications exhaustsnowmobilee:

• for models: 850, Freeride
• for makes: Ski-doo
• for years: 2018-2020
• brand: Straightline Performance
• mpn: 9466-s472773-16
• part type: Pipe

returns exhaustsnowmobilee:

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

shipping exhaustsnowmobilee:

• transit: 2-6 Days
• cost: $0.00
• service: Standard
• type: Fixed
• class: Standard

seller exhaustsnowmobilee:

• rating: 99.9%
• city: Boise, ID
• # reviews: 82945

general exhaustsnowmobilee:

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

offer exhaustsnowmobilee:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: April 14, 2026
• quantity: 2

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