STRAIGHTLINE PERFORMANCE 9598-S473037-58 Slp Pipe Expert Ski Doo 165

( Brand: Straightline Performance ), ( Manufacturer Part Number: 9598-S473037-58 ), ( Part Type: Pipe )

Review STRAIGHTLINE PERFORMANCE Slp Y pipe Ski doo Expert Package E tec 165 fits SUMMIT 850 2020–2022

The **Straightline Performance 9598-S473037-58 SLP Y-Pipe** is a meticulously engineered aftermarket exhaust system designed specifically for the **2020 2022 Ski-Doo Summit Expert E-TEC 850/165**, delivering a striking blend of performance, aesthetics, and precision tuning. Crafted from high-grade **304 stainless steel**, this Y-pipe is built to withstand the demanding conditions of off-road riding while maintaining structural integrity and resistance to corrosion, ensuring longevity even in the harshest environments. The **SLP (Straightline Performance) branding** signifies a commitment to performance optimization, with this component featuring a **customized exhaust flow path** that enhances throttle response, power delivery, and overall engine efficiency. The **9598-S473037-58** model is meticulously fitted to the Summit s E-TEC platform, offering a seamless integration with the factory exhaust system while maximizing exhaust gas evacuation for improved horsepower and torque. Its **sleek, aggressive design** not only elevates the Summit s visual appeal but also incorporates **precision-machined bends and contours** to minimize backpressure, allowing the engine to breathe more freely. Whether cruising on trails or tackling technical terrain, this Y-pipe ensures a **smoother, more responsive ride** with a deeper, more engaging exhaust note that turns heads without compromising performance. Built to meet or exceed OEM standards, the **SLP Y-Pipe** is a premium upgrade for enthusiasts seeking both power and style, making it an essential addition for those who demand the best from their Ski-Doo Summit.

### Pros and Cons of buying a Straightline Performance 9598-S473037-58 SLP Y-Pipe for a 2020-2022 Ski-Doo Summit Expert E-Tec 850/165

1. **Improved Exhaust Flow and Power**

The Straightline SLP Y-pipe is designed to optimize exhaust flow, which can enhance throttle response and horsepower, especially in the mid-to-high RPM range. This is particularly beneficial for the E-Tec 850/165, which already has strong electric assist but may benefit from better exhaust scavenging.

2. **Lightweight Construction**

Straightline s SLP pipes are made from high-quality stainless steel, which is both durable and significantly lighter than stock exhaust systems. This reduces overall weight, improving handling and acceleration.

3. **Better Sound and Aesthetics**

The SLP Y-pipe has a more aggressive, sporty look compared to the stock exhaust. It also produces a deeper, more aggressive exhaust note, which is appealing for enthusiasts who enjoy a louder, more engaging sound.

4. **Compatibility with E-Tec Systems**

The E-Tec 850/165 s electric motor works in tandem with the engine, and while the exhaust system doesn t directly impact electric power, a well-performing exhaust can improve overall drivetrain efficiency and responsiveness.

5. **Durability and Longevity**

Straightline s products are known for their robust construction, often outlasting stock exhaust systems. The SLP Y-pipe is built to handle the demands of off-road use without excessive wear.

6. **Easier Installation**

Straightline exhaust systems are designed for straightforward installation, often requiring minimal modifications. The SLP Y-pipe fits well with the Summit s frame and exhaust ports, making it a relatively simple upgrade.

7. **Potential for Future Upgrades**

If you plan to add other performance parts (e.g., a downpipe, catback exhaust, or air intake), the SLP Y-pipe serves as a solid foundation for further modifications.

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1. **Cost**

The SLP Y-pipe is not a cheap upgrade, especially when factoring in installation labor if you don t do it yourself. For a 2020-2022 Summit, the price may be higher than the vehicle s original cost in some cases, depending on market conditions.

2. **Minimal Power Gains for E-Tec Models**

While the E-Tec 850/165 already has strong electric assist, the gains from an exhaust upgrade are often modest compared to gas-only models. The electric motor s power is more influenced by battery health, motor efficiency, and software tuning than exhaust flow. You may not see dramatic performance improvements.

3. **Potential for Backfires or Rough Idling**

Some aftermarket exhaust upgrades can cause minor backfires or rough idling, especially if the engine isn t perfectly tuned to the new exhaust. The E-Tec s electronic fuel injection system may need slight adjustments to compensate, though this is rare with quality parts like the SLP.

4. **Resale Value Impact**

Modifying your Ski-Doo with aftermarket exhausts (even high-quality ones) can reduce its resale value, as many buyers prefer stock or factory-approved parts for simplicity and warranty reasons.

5. **Noise Regulations**

While the SLP Y-pipe produces a louder exhaust note, some regions or riding areas have strict noise ordinances. Ensure your local laws allow for the sound level of this exhaust before purchasing.

6. **Potential for Heat Buildup**

Stainless steel exhausts can retain more heat than stock systems, which may affect nearby components (e.g., the E-Tec motor or suspension). However, this is usually negligible unless you re pushing the vehicle extremely hard.

7. **Installation Complexity (If DIY)**

While Straightline pipes are designed for easy installation, some riders may find fitting them to the Summit s frame or connecting them to the E-Tec s exhaust ports challenging, especially without the right tools or experience.

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The Straightline SLP Y-pipe is a worthwhile upgrade for the 2020-2022 Ski-Doo Summit Expert E-Tec 850/165 if you prioritize **exhaust flow, aesthetics, and a sportier sound** over raw power gains. The E-Tec s electric assist means you won t see massive horsepower increases, but the exhaust will still improve throttle response, reduce backpressure, and enhance the riding experience.

If you re an enthusiast who enjoys modifying their vehicle and doesn t mind spending extra for performance and style, this is a solid choice. However, if you re primarily concerned with **electric power output, resale value, or minimal modifications**, the benefits may not justify the cost.

- **Buy it if:** You want a noticeable exhaust upgrade, enjoy the sound and look of the SLP, and are okay with modest power improvements. It s also a good step if you plan to add other performance parts later.

- **Skip it if:** You re mostly concerned with electric power (where gains will be minimal), want to keep resale value high, or prefer to avoid any potential tuning or installation hassles.

- **Alternative Consideration:** If you re unsure, start with a **downpipe or catback exhaust** (if available for the E-Tec) before committing to a full Y-pipe swap, as these may offer better power gains with less cost.

Ultimately, the SLP Y-pipe is a **high-quality, functional upgrade** that enhances the Summit s performance and character, making it a strong recommendation for riders who appreciate aftermarket enhancements.

Details:

Brand: Straightline Performance, model Number: 9598-S473037-58. Parts without fitment are to be assumed universal and may require vehicle modification. Available in ceramic or black high-temperature paint. This is helpful if you are buying multiple items.

No jetting modifications needed with just a Y-pipe. 2019 - 2022 Ski-Doo Back country X E-TEC 850. I need to exchange an item. 2020 - 2022 Ski-Doo Back country X-RS E-TEC 850 154.

Increase of 2-10 horsepower depending on Y-pipe application.

part #: 9598s47303758 price

• $254.65

specifications exhaustsnowmobilee:

• for models: 850, Summit
• for makes: Ski-doo
• for years: 2020-2022
• brand: Straightline Performance
• mpn: 9598-s473037-58
• part type: Pipe

offer exhaustsnowmobilee:

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

general exhaustsnowmobilee:

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

seller exhaustsnowmobilee:

• city: Boise, ID
• rating: 99.9%
• # reviews: 82862

returns exhaustsnowmobilee:

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

payments exhaustsnowmobilee:

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

shipping exhaustsnowmobilee:

• transit: 3-7 Days
• service: Standard
• cost: $0.00
• class: Standard
• type: Fixed

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