STARTING LINE PRODUCTS 2502-S746845-72 Exhaust Flange Seal Grafoil Pipe Cat

( Brand: Starting Line Products ), ( Manufacturer Part Number: 2502-S746845-72 ), ( Part Type: Seal Pipe Exhaust Flange )

Review STARTING LINE PRODUCTS Exhaust Flange Grafoil Seal twin Pipe Arctic Cat fits TWIN 2002–2003

The **Starting Line 2502-S746845-72 Exhaust Flange Grafoil Seal for Twin-Pipe Applications** is a precision-engineered aftermarket component designed specifically to enhance the performance, reliability, and longevity of the exhaust system on **2002 2003 Arctic Cat** snowmobiles equipped with twin exhaust pipes. Crafted from high-quality **Grafoil (graphite-based) sealing material**, this flange seal is engineered to provide an ultra-tight, vibration-resistant barrier between the exhaust manifold and the muffler assembly, ensuring optimal exhaust flow while preventing leaks that could compromise engine efficiency or introduce harmful emissions. Unlike standard rubber or silicone seals that degrade under extreme temperatures and mechanical stress, Grafoil exhibits exceptional heat resistance, durability, and flexibility, making it ideal for the demanding conditions encountered in off-road and winter applications. The seal s unique construction minimizes friction and wear on the exhaust flange, reducing the risk of premature failure and costly repairs, while its precise fitment ensures a consistent, airtight seal that maintains peak engine performance. Whether used for maintenance, upgrades, or replacement in stock or modified Arctic Cat engines, this seal is a critical component for preserving exhaust system integrity, reducing backpressure, and extending the lifespan of the entire exhaust assembly. Built to meet or exceed OEM standards, it offers a cost-effective solution for riders who demand both performance and reliability in their Arctic Cat snowmobiles.

Buying the **Starting Line 2502-S746845-72 Exhaust Flange Grafoil Seal for a 2002-2003 Arctic Cat** has both advantages and disadvantages, depending on your priorities, budget, and needs. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying This Part**

1. **Direct Fitment and Compatibility**

The seal is specifically designed for the **2002-2003 Arctic Cat** models, ensuring a proper fit without modifications. This reduces the risk of leaks, improper installation, or damage to the exhaust system.

2. **High-Quality Grafoil Material**

Grafoil is a durable, heat-resistant sealing material that provides a tight, long-lasting seal. It is less prone to cracking or degrading under high temperatures compared to cheaper rubber or silicone alternatives.

3. **Prevents Exhaust Leaks**

A faulty or missing exhaust flange seal can lead to **exhaust gas leaks**, which not only waste power but also pose safety risks (carbon monoxide poisoning) and environmental hazards. This seal ensures a proper seal, maintaining engine efficiency and safety.

4. **Easy Installation**

The seal is designed to be a straightforward replacement, requiring minimal tools and expertise. Most users can install it themselves without professional help, saving labor costs.

5. **Cost-Effective Solution**

While not the cheapest option, it is a **one-time replacement** that can prevent more expensive issues down the line, such as damaged exhaust components or engine damage from poor sealing.

6. **Compatibility with Twin-Pipe Systems**

Since the part is labeled for a **twin-pipe exhaust**, it is specifically engineered to work with Arctic Cat s dual-exhaust setup, ensuring balanced performance and proper sealing on both sides.

7. **Widely Available and Trusted Brand**

Starting Line is a reputable manufacturer known for producing high-quality aftermarket parts for off-road and snowmobile applications. This brand reliability can give you confidence in the product s durability.

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### **Cons of Buying This Part**

1. **Potential Overkill for Minor Issues**

If the exhaust flange seal failure is due to a **minor issue** (e.g., a loose clamp or minor corrosion), replacing just the seal may not address the root cause. If the problem persists, you might need to replace additional components (e.g., clamps, exhaust pipes, or even the entire flange).

2. **Limited Longevity in Harsh Conditions**

While Grafoil is durable, **extreme cold, salt exposure (if used in winter conditions), or frequent high-RPM operation** can still degrade the seal over time. If your Arctic Cat is used aggressively or in harsh environments, the seal may need replacement sooner than expected.

3. **Price Point**

The part is not extremely expensive, but it is **not the cheapest option** on the market. If you re on a tight budget, you might consider generic or aftermarket alternatives, though quality may vary.

4. **Installation Challenges for Inexperienced Users**

While the installation is generally straightforward, **misalignment or improper seating** of the seal can lead to leaks. If you re not comfortable working on exhaust systems, you may need to pay for professional installation, adding to the cost.

5. **Availability and Lead Times**

Depending on where you purchase it, there may be **limited stock** or longer lead times, especially if buying from a specialized snowmobile parts dealer rather than a big-box retailer.

6. **Potential for Counterfeit or Low-Quality Copies**

If purchasing from an untrusted seller (e.g., third-party online marketplaces), there is a risk of receiving a **counterfeit or inferior-quality seal**. Always buy from authorized dealers or reputable retailers to avoid this.

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### **Conclusion**

The **Starting Line 2502-S746845-72 Grafoil Seal** is a **reliable, high-quality replacement** for the exhaust flange on your 2002-2003 Arctic Cat, offering a secure seal and long-term durability. It is the **best choice for most users** who prioritize performance, safety, and longevity, especially if you want to avoid leaks and maintain engine efficiency.

However, if you re dealing with **underlying exhaust system issues** (e.g., rusted flanges, damaged pipes) or operating in **extremely harsh conditions**, you may need to consider additional repairs or a more frequent replacement schedule. Additionally, if budget is a major concern, you might explore **generic Grafoil seals** (though quality may not be guaranteed).

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### **Recommendation**

- You need a **direct-fit, high-quality replacement** for a leaking exhaust flange.

- You want to **prevent exhaust leaks, carbon monoxide risks, and power loss**.

- You re comfortable with a **one-time purchase** that avoids frequent replacements.

- You trust **Starting Line s reputation** for durability.

- You suspect **deeper exhaust system issues** (e.g., rusted flanges) that require additional repairs.

- You re operating in **extreme conditions** (e.g., heavy salt use, constant high-RPM riding) and may need to replace it sooner.

- You re on a **very tight budget** and can find a **verified generic Grafoil seal** at a lower cost (though quality may vary).

For most owners of a **2002-2003 Arctic Cat**, this is the **best available option** for a reliable exhaust flange seal. Purchase from an **authorized dealer or trusted retailer** to ensure authenticity, and follow installation instructions carefully to avoid leaks. If the issue persists after replacement, inspect the **exhaust clamps, flange condition, and surrounding components** for further damage.

Details:

2010 - 2011 Arctic Cat F6 EFI Son Pro. This is helpful if you are buying multiple items. Parts without fitment are to be assumed universal and may require vehicle modification.: Brand: Starting Line Products, model Number: 2502-S746845-72.

I need to exchange an item. Starting Line Exhaust Flange Grafoil Seal-Twin Pipe for 2002 2003 Arctic Cat Pantry 800 EFI ESR Snowmobile: For SLP Systems. 2012 - Arctic Cat F5 LXR.

part #: 2502s74684572 price

• $57.87

specifications exhaustsnowmobilee:

• for models: Twin
• for makes: Arctic, Arctic-cat
• for years: 2002-2003
• brand: Starting Line Products
• mpn: 2502-s746845-72
• part type: Seal Pipe Exhaust Flange

payments exhaustsnowmobilee:

• credit card: Discover
• wallet: Google-pay
• other

seller exhaustsnowmobilee:

• rating: 99.9%
• # reviews: 85433
• city: Boise, ID

general exhaustsnowmobilee:

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

returns exhaustsnowmobilee:

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

shipping exhaustsnowmobilee:

• class: Standard
• service: Standard
• type: Fixed
• cost: $0.00
• transit: 2-5 Days

offer exhaustsnowmobilee:

• sold: 0
• quantity: 9
• started: May 18, 2026
• availability: In Stock
• options: Ship-to-home

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