1. Exhaust Snowmobile Parts For Sale
  2. sku: 9609650562660602
  3. SPORTS INC 4550-S678941-50

SPORTS PARTS INC 4550-S678941-50 Spi Tailpipe Ski Doo GASKET-51 1/2 I.D.X64 O.D.X16 1/5

fits model: X16, Touring, Grand. make: Ski-doo. year: 2017.

4550-s678941-50 Sports Parts Inc Spi Tailpipe Gasket-51 1/2 I.d.x64 O.d.x16 1/5 H For 2017 Ski-doo Grand Touring

( Brand: Sports Parts Inc ), ( Manufacturer Part Number: 4550-S678941-50 )

Review SPORTS PARTS INC Spi Tailpipe 1/2.d.x64.d.x16 1/5for Ski doo fits GRAND X16 TOURING 2017

The **SPI Tailpipe Gasket (Part #4550-S678941-50)** is a precision-engineered aftermarket component meticulously designed to enhance both performance and reliability for the **2017 Ski-Doo Touring** series, specifically tailored to fit the **51 -inch inner diameter (I.D.)** exhaust system with an outer diameter (O.D.) of **64 inches** and a **16/5th-inch wall thickness**. Crafted from high-grade, heat-resistant silicone rubber, this gasket is built to withstand the extreme thermal cycling and mechanical stress inherent in high-performance snowmobile exhaust systems, ensuring a secure, leak-free seal that maintains optimal exhaust flow while minimizing heat transfer to surrounding components. The gasket s **customized dimensions** and **reinforced construction** prevent warping or degradation over time, even under prolonged exposure to the intense heat generated by the Ski-Doo s turbocharged engine, making it an ideal upgrade for riders seeking improved exhaust efficiency and longevity. Whether you re pursuing aggressive off-road trails or cruising through deep powder, this gasket eliminates the risk of exhaust gas leaks, reduces backpressure, and contributes to a cleaner, more efficient exhaust system ultimately enhancing throttle response and overall engine performance. Its **universal compatibility** with the 2017 Ski-Doo Touring s stock tailpipe assembly ensures a straightforward installation, requiring minimal modification, while its durable design minimizes the need for frequent replacements, saving time and effort in the long run. For riders who demand both performance and reliability, this SPI gasket is a critical component to maintain peak exhaust system functionality and extend the lifespan of your Ski-Doo s turbocharged drivetrain.

### **Pros and Cons of buying a 4550-S678941-50 SPI Tailpipe Gasket (51.5" ID x 64" OD x 16" Length) for a 2017 Ski-Doo Touring**

#### **Pros:**

1. **OEM Fitment** This gasket is designed specifically for the 2017 Ski-Doo Touring, ensuring compatibility with the exhaust system. Using an aftermarket part that doesn t match the exact dimensions could lead to leaks or improper sealing.

2. **Durability** SPI (Specialty Performance Industries) is a reputable manufacturer known for producing high-quality exhaust components. Their gaskets are typically made from heat-resistant materials that can withstand the high temperatures generated by the engine.

3. **Prevents Leaks** A properly installed gasket ensures a tight seal between the tailpipe and the exhaust system, preventing exhaust gases from escaping and reducing noise and potential engine damage from backpressure.

4. **Easy Installation** The gasket is a straightforward replacement part. If you have basic mechanical skills or access to a mechanic, replacing it should not require extensive labor or specialized tools.

5. **Cost-Effective** Compared to the potential cost of exhaust system repairs caused by a leaking gasket (e.g., rust damage, muffler failure), replacing a worn gasket is a relatively inexpensive fix.

6. **Compatibility with Other SPI Parts** If you plan to upgrade other components of your exhaust system (e.g., mufflers, headers), SPI offers a full line of compatible parts, making future modifications easier.

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#### **Cons:**

1. **Potential for Counterfeit Parts** Since this is an OEM-style part, there is a risk of purchasing a counterfeit or low-quality knockoff, especially if buying from an untrusted seller. Always verify the seller s reputation and check for authenticity markings.

2. **Limited Availability** Depending on the region, this specific gasket may not be readily available in local stores. You may need to order it online, which could result in shipping delays.

3. **Installation Challenges** If the gasket is stuck or the exhaust system is corroded, removal and installation could be difficult. Rust or debris in the exhaust flanges may require cleaning or lubrication to prevent damage during installation.

4. **Wear Over Time** Even high-quality gaskets will degrade over time due to heat and vibration. If the gasket fails prematurely, you may need to replace it sooner than expected, especially if you frequently ride in wet or dusty conditions.

5. **Price Sensitivity** While not excessively expensive, the cost of the gasket may be a concern for budget-conscious buyers. If you re on a tight budget, you might consider alternative solutions (e.g., using a high-temperature sealant as a temporary fix), though this is not recommended for long-term use.

6. **No Performance Upgrade** This gasket is a maintenance/replacement part and does not improve exhaust flow or engine performance. If you re looking for a performance boost, you would need to invest in other exhaust components (e.g., headers, high-flow mufflers).

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### **Conclusion:**

The **4550-S678941-50 SPI Tailpipe Gasket** is a reliable and necessary replacement part for maintaining the integrity of your 2017 Ski-Doo Touring s exhaust system. Its OEM fitment, durability, and ease of installation make it a practical choice for preventing leaks and ensuring optimal exhaust function. However, potential drawbacks such as counterfeit risks, limited availability, and the possibility of installation difficulties should be considered.

If you re experiencing exhaust leaks, backpressure, or unusual noises, replacing the gasket is a wise preventive measure. Always purchase from a trusted source (e.g., official dealers, reputable online retailers like Amazon, Ski-Doo authorized parts suppliers) to avoid counterfeit products.

### **Recommendation:**

- **Buy from an authorized dealer or a well-reviewed online retailer** to ensure you receive a genuine SPI part.

- **Inspect the exhaust system** before installation to remove any rust or debris that could interfere with sealing.

- **Follow the manufacturer s installation guidelines** carefully to avoid damaging the gasket or exhaust components.

- **Consider pairing this replacement with a full exhaust system inspection** to address any other potential issues (e.g., cracked mufflers, loose clamps).

- **If unsure about installation**, consult a professional mechanic to ensure the gasket is properly seated and sealed.

For most riders, the benefits of using a high-quality gasket far outweigh the cons, making this a recommended purchase for maintaining your Ski-Doo s performance and longevity.

Details:

This is helpful if you are buying multiple items. Parts without fitment are to be assumed universal and may require vehicle modification. I need to exchange an item. 2011 - 2017 Ski-Doo Expedition LE E-TEC 600 HO.

2017 - Ski-Doo Grand Touring SE 4-TEC 1200.: Brand: Sports Parts Inc, model Number: 4550-S678941-50. 2012 - 2017 Ski-Doo Free ride E-TEC 800R 154.

part #: 4550s67894150 price

  • $34.46

specifications exhaustsnowmobilee:

  • for models: X16, Touring, Grand
  • for makes: Ski-doo
  • for years: 2017
  • brand: Sports Parts Inc
  • mpn: 4550-s678941-50

payments exhaustsnowmobilee:

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shipping exhaustsnowmobilee:

  • cost: $0.00
  • type: Fixed
  • class: Standard
  • service: Standard
  • transit: 4-7 Days

offer exhaustsnowmobilee:

  • started: February 13, 2026
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • quantity: 9

returns exhaustsnowmobilee:

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

general exhaustsnowmobilee:

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

seller exhaustsnowmobilee:

  • # reviews: 77616
  • rating: 99.9%
  • city: Boise, ID
for models: x16, touring, grand, for makes: ski-doo, for years: 2017,
category: snowmobile parts > exhaust, sku: 9609650562660602,
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