STARTING LINE PRODUCTS 2564-S746969-44 Slp Exhaust Flange Seal Grafoil Pipe 151

( Brand: Starting Line Products ), ( Manufacturer Part Number: 2564-S746969-44 ), ( Part Type: Seal Pipe Exhaust Flange )

Review STARTING LINE PRODUCTS Slp Exhaust Flange Grafoil Seal twin Pipe Polaris 151 fits TWIN RMK SP 800 2001

The **2564-S746969-44 SLP Exhaust Flange with Grafoil Seal for the 2001 Polaris 800 RMK SP 151** is a precision-engineered aftermarket component designed to enhance both performance and reliability in your high-output Polaris Sportster. Crafted from high-grade stainless steel, this exhaust flange is built to withstand the intense heat and pressure generated by the aggressive twin-pipe exhaust system, ensuring durability and longevity even under demanding riding conditions. The flange features a robust, threaded connection that securely mounts to the stock or upgraded exhaust headers, providing a tight seal that minimizes exhaust leakage while maximizing flow efficiency. A key highlight of this part is the integrated **Grafoil seal**, a high-temperature, self-lubricating gasket material that adapts to minor surface irregularities, preventing leaks and reducing the risk of exhaust gas contamination. This seal is particularly beneficial in applications where vibration and thermal expansion occur, as it maintains a consistent, airtight barrier between the flange and the exhaust system. Whether you're running a stock setup or a more aggressive exhaust configuration, this flange ensures a clean, leak-free connection that preserves engine efficiency and reduces backpressure. The design also incorporates a smooth, contoured surface to optimize exhaust flow, helping to improve throttle response and overall engine performance. Ideal for riders who demand both power and precision, this exhaust flange is a straightforward yet impactful upgrade that complements the aggressive styling and performance of the 2001 Polaris 800 RMK SP 151, ensuring a seamless integration with your exhaust system while delivering reliable, high-performance results.

### **Pros and Cons of buying a Starting Line 2564-S746969-44 SLP Exhaust Flange with Grafoil Seal for a 2001 Polaris 800 RMK SP (151)**

1. **Compatibility** This part is specifically designed for the 2001 Polaris 800 RMK SP (151) engine, ensuring a proper fit without modifications. The SLP (Single-Layer Pipe) exhaust system is a common upgrade for this model, and this flange is a key component for maintaining a clean exhaust flow.

2. **Grafoil Seal** The inclusion of a Grafoil gasket ensures a reliable, high-temperature seal between the exhaust flange and the engine. Grafoil is durable, resistant to heat and vibration, and reduces the risk of leaks, which is crucial for maintaining exhaust efficiency and preventing carbon buildup.

3. **Performance Benefits** Upgrading to an SLP exhaust system can improve exhaust flow, reduce backpressure, and enhance engine breathing. This may lead to slight power gains, better throttle response, and a more aggressive exhaust note, which is desirable for off-road performance.

4. **Durability** The flange is typically constructed from high-quality stainless steel or aluminum, designed to withstand the stresses of off-roading, including impacts, vibrations, and extreme temperatures. This makes it a long-lasting component if properly installed and maintained.

5. **Ease of Installation** Since this is an OEM-style replacement part, it should fit directly onto the stock exhaust ports with minimal modifications. This makes it accessible for DIYers without requiring extensive mechanical expertise or specialized tools.

6. **Cost-Effective Upgrade** Compared to full exhaust systems, this flange is a relatively inexpensive component. It allows you to upgrade specific parts of your exhaust system without committing to a full overhaul, making it a practical choice for budget-conscious riders.

7. **Compatibility with Other Upgrades** This flange can be paired with other performance parts, such as a cat-back exhaust, muffler, or downpipe, to create a more comprehensive exhaust system tailored to your riding style and preferences.

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1. **Limited Power Gains** While this flange may improve exhaust flow, the gains are often modest unless paired with other performance modifications (e.g., a high-flow cat-back exhaust or a turbocharged setup). Expect subtle improvements rather than dramatic power increases.

2. **Potential for Leaks** If the Grafoil seal is not properly installed or if the flange is not securely tightened, exhaust leaks can occur. Leaks not only reduce performance but also pose safety risks due to hot exhaust gases. Proper installation is critical to avoid this issue.

3. **Noise Considerations** An SLP exhaust system will produce a louder, more aggressive exhaust note compared to the stock system. While many riders prefer this sound, others may find it too loud, especially in residential areas or when riding in urban environments. Local noise regulations may also apply.

4. **Weight and Balance** Exhaust systems, even upgraded ones, add weight to the rear of the bike. This can slightly affect handling, particularly in aggressive riding or when cornering at high speeds. The impact is usually minimal but worth considering if you prioritize lightweight performance.

5. **Maintenance Requirements** Upgraded exhaust systems may require more frequent inspections for leaks, gasket wear, or damage from off-road use. The Grafoil seal, while durable, can degrade over time, especially in extreme conditions, necessitating periodic checks.

6. **Compatibility with Stock Components** If you plan to mix this flange with non-OEM parts (e.g., aftermarket mufflers or headers), ensure full compatibility to avoid fitment issues or performance losses. Some aftermarket components may not align perfectly with the stock exhaust ports.

7. **Potential for Voiding Warranty** If your Polaris is still under warranty, installing aftermarket parts like this flange may void certain coverage. Always check your warranty terms before proceeding with modifications.

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The **Starting Line 2564-S746969-44 SLP Exhaust Flange with Grafoil Seal** is a solid, practical upgrade for the 2001 Polaris 800 RMK SP (151). It offers a straightforward way to improve exhaust flow, enhance performance slightly, and maintain a reliable seal without requiring extensive modifications. The inclusion of a Grafoil seal adds durability and reduces the risk of leaks, making it a dependable choice for riders looking to upgrade their exhaust system incrementally.

However, the benefits are modest unless paired with additional performance parts, and potential drawbacks such as noise, maintenance needs, and compatibility issues should be considered. If you prioritize a cleaner exhaust flow, better engine breathing, and a more aggressive sound without major modifications, this flange is a worthwhile investment. For those seeking dramatic power gains or a full exhaust overhaul, a more comprehensive system may be necessary.

- **Buy it if:** You want a simple, cost-effective upgrade to improve exhaust efficiency, reduce backpressure, and enhance the bike s performance slightly. You re comfortable with basic installation and willing to monitor the seal for leaks over time.

- **Consider alternatives if:** You re looking for more significant power gains, a quieter exhaust, or a full custom exhaust system. In that case, explore cat-back exhaust systems or header upgrades designed for the 800 RMK SP.

- **Installation tip:** Ensure the flange is torqued to the manufacturer s specifications and the Grafoil seal is properly seated to prevent leaks. Use a high-quality gasket maker or anti-seize compound if needed for extra security.

- **Pair with:** A high-flow muffler or a full SLP exhaust system for better results, or consider a turbocharger kit if you re aiming for substantial power increases.

Overall, this flange is a **reliable and practical choice** for riders seeking a modest exhaust upgrade without major modifications.

Details:

SLP Exhaust Flange Grafoil Seal-Twin Pipe for 2001 Polaris 800 RMK SP 151: For Systems. I need to exchange an item. Parts without fitment are to be assumed universal and may require vehicle modification. This is helpful if you are buying multiple items.

2001 - Polaris 800 RMK SP 144.: Brand: Starting Line Products, model Number: 2564-S746969-44. 2001 - Polaris 800 RMK SP 151.

part #: 2564s74696944 price

• $57.87

specifications exhaustsnowmobilee:

• for models: Rmk, Sp, 800, Twin
• for makes: Polaris
• for years: 2001
• brand: Starting Line Products
• mpn: 2564-s746969-44
• part type: Seal Pipe Exhaust Flange

offer exhaustsnowmobilee:

• sold: 0
• options: Ship-to-home
• started: May 16, 2026
• quantity: 9
• availability: In Stock

general exhaustsnowmobilee:

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

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• city: Boise, ID
• # reviews: 85365
• rating: 99.9%

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• cost: $0.00
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