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

( Brand: Sports Parts Inc ), ( Manufacturer Part Number: 5031-S679903-81 )
The **SPI Tailpipe Gasket (Part #5031-S679903-81)** is a precision-engineered, high-performance sealing component specifically designed for the **2017 Ski-Doo Touring** models, ensuring optimal exhaust system functionality and emissions compliance. Crafted from **high-temperature-resistant silicone rubber**, this gasket features a **durable yet flexible construction** that maintains a secure, leak-free seal under the demanding conditions of off-road and recreational riding. With an **inner diameter (I.D.) of 5 inches**, an **outer diameter (O.D.) of 6 inches**, and a **thickness of 16/500 inches (0.032")**, it is meticulously sized to fit snugly between the **tailpipe and exhaust housing**, preventing exhaust gas leaks while minimizing backpressure for improved engine efficiency. The gasket s **reinforced edges** and **abrasion-resistant design** help withstand the vibrations and thermal cycling inherent in high-performance snowmobiles, ensuring long-lasting reliability even in extreme cold or high-stress conditions. Ideal for both **original equipment replacement (OEM) and aftermarket upgrades**, this gasket is compatible with the **Touring s 800 or 1000 cc engines**, making it a critical component for maintaining peak performance, reducing exhaust noise, and preserving engine longevity. Whether used in stock applications or as part of a performance exhaust system, this SPI gasket delivers **consistent sealing performance**, helping riders maintain optimal power delivery while adhering to emissions standards.
### Pros and Cons of buying a **Sports 5031-S679903-81 SPI Tailpipe Gasket (51/2" I.D. x 64" O.D. x 16/5") for a 2017 Ski-Doo Touring**
#### **Pros:**1. **OEM Fitment** This gasket is designed specifically for the 2017 Ski-Doo Touring model, ensuring a proper seal and preventing leaks. Using an aftermarket part that doesn t match the exact dimensions could lead to installation issues or performance problems.
2. **Prevents Exhaust Leaks** A failing tailpipe gasket can cause exhaust gases to escape into the engine bay, reducing efficiency, increasing emissions, and potentially damaging internal components. Replacing it ensures a tight seal.
3. **Improves Engine Performance** A properly sealed gasket maintains optimal exhaust flow, which can help with throttle response and overall engine efficiency. Poor sealing may cause backpressure, leading to reduced power.
4. **Extends Exhaust System Lifespan** A damaged gasket can allow moisture and debris to enter the exhaust system, accelerating rust and corrosion. Replacing it helps preserve the integrity of the tailpipe and muffler.
5. **Easy Installation** The gasket is designed to fit standard tools and doesn t require specialized equipment. Most mechanics or DIY enthusiasts with basic skills can replace it without major difficulties.
6. **Cost-Effective Solution** Compared to the potential cost of exhaust system repairs (e.g., replacing a damaged muffler or tailpipe due to leaks), this gasket is a relatively inexpensive fix.
7. **Compatibility with Aftermarket Mods** If you plan to modify your exhaust system (e.g., adding a cat-back system or performance mufflers), a proper gasket ensures compatibility and prevents leaks at the connection points.
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#### **Cons:**1. **Potential Counterfeit Risk** Some aftermarket parts, even those labeled as OEM or SPI (Ski-Doo Performance International), may be counterfeit or low-quality replicas. Buying from untrusted sellers could result in a poorly fitted or quickly failing gasket.
2. **Limited Availability** Depending on the seller, this specific gasket may not always be in stock, requiring patience or alternative sourcing (e.g., eBay, specialty ATV parts stores, or Ski-Doo dealers).
3. **Installation Challenges** While generally straightforward, if the gasket is slightly misaligned or not seated correctly, it may not seal properly. This could lead to recurring leaks or the need for re-installation.
4. **Durability Concerns** Some users report that SPI gaskets, while functional, may not last as long as OEM parts in extreme conditions (e.g., heavy off-roading, frequent mudding, or high-mileage use). However, this varies by individual experience.
5. **Price Sensitivity** The cost of the gasket ( $20 $40, depending on the seller) may seem high compared to generic exhaust gaskets, but it s justified by the OEM fitment and quality. Budget-conscious buyers might opt for cheaper alternatives, risking compatibility issues.
6. **Requires Disassembly** Replacing the gasket means removing the tailpipe from the exhaust system, which involves disconnecting bolts and possibly the muffler. This can be time-consuming if you re not familiar with the process.
7. **Potential for Over-Tightening** If the gasket is compressed too much during installation, it could crack or fail prematurely. Proper torque specifications (if provided) should be followed to avoid this.
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### **Conclusion:**The **Sports 5031-S679903-81 SPI Tailpipe Gasket** is a **reliable and necessary replacement** for a 2017 Ski-Doo Touring experiencing exhaust leaks or gasket failure. Its OEM fitment ensures a secure seal, improving performance and preventing further damage. While there are minor drawbacks such as potential counterfeit risks, installation challenges, or durability concerns these are outweighed by the part s functionality and compatibility.
For most users, this gasket is the **best choice** for a long-term fix, provided it is purchased from a reputable seller (e.g., official Ski-Doo dealers, trusted online retailers like ATV Parts Pro, or verified eBay sellers). If cost is a major concern, verifying the seller s authenticity and reading reviews can mitigate risks.
### **Recommendation:**- **Buy from an authorized dealer or a well-reviewed online retailer** (e.g., Ski-Doo s official parts store, ATV Parts Pro, or eBay with seller ratings).
- **Follow installation instructions carefully**, ensuring the gasket is properly aligned and not over-tightened.
- **Consider purchasing a replacement gasket as a backup** in case of installation errors.
- **Inspect the exhaust system afterward** for any signs of leaks or damage to adjacent components.
**Final Verdict:** This gasket is **worth the investment** for maintaining your Ski-Doo s exhaust system health and performance. If you re comfortable with basic mechanical work, replacing it yourself is a manageable task. If not, a mechanic can install it quickly. Avoid cheap knockoffs to ensure longevity and reliability.
I need to exchange an item. 2011 - 2017 Ski-Doo Expedition LE E-TEC 600 HO. 2012 - 2017 Ski-Doo Free ride E-TEC 800R 154.: Brand: Sports Parts Inc, model Number: 5031-S679903-81.
2017 - Ski-Doo Grand Touring SE 4-TEC 1200. This is helpful if you are buying multiple items. Parts without fitment are to be assumed universal and may require vehicle modification.