STARTING LINE PRODUCTS 2257-S548355-97 Slp Exhaust Flange Grafoil Seal Cat

( Brand: Starting Line Products ), ( Manufacturer Part Number: 2257-S548355-97 ), ( Part Type: Seal Exhaust Flange )

Review STARTING LINE PRODUCTS Slp Exhaust Flange Grafoil Seal Arctic Cat fits MOUNTAIN EFI 600 2001–2004

The **Starting Line 2257-S548355-97 SLP Exhaust Flange Grafoil Seal** is a precision-engineered, high-performance gasket designed specifically for the **2001 2004 Arctic Cat Mountain 600 EFI** models, ensuring a secure and leak-proof connection between the exhaust manifold and the downpipe. Crafted from **Grafoil**, a reinforced graphite-based material, this seal is engineered to withstand extreme temperatures, aggressive vibrations, and the demanding conditions of off-road and trail riding. Unlike conventional paper or rubber gaskets, Grafoil resists hardening, cracking, or degrading over time, providing long-lasting reliability and maintaining optimal compression even after prolonged use. Its unique composition allows for a perfect, conforming seal that adapts to minor surface irregularities, eliminating the risk of exhaust leaks that could compromise engine performance or introduce harmful fumes into the cabin. The **SLP (Super Low Profile)** designation indicates a slim, low-profile design that minimizes interference with surrounding components, ensuring a clean, interference-free fitment without requiring modifications to the stock exhaust system. Whether you're tackling rugged terrain, pushing the limits of your Mountain 600, or simply seeking a durable, no-fail solution for routine maintenance, this seal delivers the precision and durability required to keep your exhaust system operating at peak efficiency.

### Pros and Cons of buying a Starting Line 2257-S548355-97 SLP Exhaust Flange Grafoil Seal for a 2001-2004 Arctic Cat Mountain 600 EFI

1. **OEM Compatibility** The part is designed specifically for your model (2001-2004 Arctic Cat Mountain 600 EFI), ensuring a proper fit without modifications. This reduces the risk of installation issues or leaks caused by improper sizing.

2. **High-Quality Material (Grafoil)** Grafoil is a high-temperature, flexible sealing material that resists warping, cracking, and degradation under heat and vibration. This makes it more durable than standard paper or rubber gaskets, extending the life of the exhaust system and preventing leaks over time.

3. **SLP (Superior Leak-Proof) Design** The "SLP" designation suggests that this seal is engineered to provide a superior, long-lasting seal compared to standard aftermarket or generic replacements. This can improve exhaust efficiency and reduce noise from leaks.

4. **Easy Installation** Since it s a direct replacement part, it should install similarly to the original equipment manufacturer (OEM) seal. Many users report that it can be installed with basic tools and minimal effort, especially if the exhaust flange is clean and properly prepared.

5. **Cost-Effective Solution** Replacing a failed or worn exhaust flange seal is often cheaper than replacing the entire exhaust system or dealing with long-term damage caused by leaks (e.g., rust, heat damage, or exhaust gas contamination). This part is a targeted fix rather than a full overhaul.

6. **Reduces Exhaust Noise and Backpressure** A properly sealed flange prevents exhaust gases from escaping through gaps, which can reduce hissing noises and improve engine performance by minimizing backpressure.

7. **Widely Available Support** Starting Line is a reputable brand with customer support and online resources (e.g., forums, manuals) to help with installation questions or issues. This can be helpful if you re unfamiliar with exhaust system repairs.

---

1. **Potential Overkill for Minor Issues** If the exhaust flange itself is damaged (e.g., bent, cracked, or warped), replacing just the seal may not fully resolve the problem. You might still experience leaks or performance issues if the flange is compromised. In such cases, replacing the entire flange or section of the exhaust may be necessary.

2. **Installation Challenges** While the part is designed for easy installation, improper preparation (e.g., not cleaning the flange surfaces thoroughly or not using the correct torque specifications) can lead to leaks. Rust, debris, or old sealant residue must be removed to ensure a proper seal.

3. **Cost Relative to Other Options** While this is a cost-effective solution compared to full exhaust replacement, it may still be more expensive than a generic or lower-quality seal. However, the longevity and reliability of Grafoil often justify the price.

4. **Limited Availability of Replacement Parts** If the seal fails again shortly after installation, finding an exact replacement might be difficult, especially if the original part is discontinued. Always check stock or order spares if possible.

5. **Requires Basic Mechanical Skill** If you re not comfortable working on exhaust systems, you may need to pay a mechanic for installation, adding to the cost. However, many users find it straightforward with the right tools (e.g., torque wrench, brake cleaner, and a new seal).

6. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (e.g., third-party marketplaces without reviews or return policies) could result in receiving a fake or low-quality seal. Buying directly from Starting Line s authorized dealers or reputable retailers (e.g., Arctic Cat dealers, Amazon with verified sellers) reduces this risk.

7. **Not a Permanent Fix for Underlying Issues** If the exhaust system has other problems (e.g., cracked headers, loose bolts, or exhaust pipe damage), replacing the seal alone won t address those. A thorough inspection of the entire exhaust system is recommended before installation.

---

The **Starting Line 2257-S548355-97 SLP Exhaust Flange Grafoil Seal** is a high-quality, OEM-compatible solution for addressing leaks in the exhaust flange of your 2001-2004 Arctic Cat Mountain 600 EFI. Its use of Grafoil ensures durability and a reliable seal, making it a practical choice for DIYers or those looking to avoid more extensive (and costly) exhaust repairs. However, it s essential to ensure the exhaust flange itself is in good condition before installation, as a damaged flange can negate the benefits of the seal.

If you re confident in your ability to prepare the flange properly and install the seal correctly, this part is a **strong recommendation**. For those less experienced, consulting a mechanic or Arctic Cat dealer for installation guidance may be wise. Always purchase from a trusted source to avoid counterfeit products.

- You ve confirmed the exhaust flange is intact and only the seal is worn or missing.

- You re willing to invest in a durable, long-lasting solution that reduces leaks and noise.

- You have basic mechanical skills or access to professional help for installation.

- The exhaust flange is damaged (bent, cracked, or warped), as the seal alone won t fix the issue.

- You re unable to properly clean and prepare the flange surfaces before installation.

- You re purchasing from an untrusted seller with no return policy or customer support.

Details:

2004 - 2006 Arctic Cat F6 Fire cat EFI Son Pro Twin Pipe. This is helpful if you are buying multiple items. I need to exchange an item. SLP Exhaust Flange Grafoil Seal for 2001 2004 Arctic Cat Mountain 600 EFI: For Systems.

Brand: Starting Line Products, model Number: 2257-S548355-97. 2005 - 2010 Arctic Cat M6 EFI 153 Twin Pipe. Parts without fitment are to be assumed universal and may require vehicle modification.

part #: 2257s54835597 price

• $57.87

specifications exhaustsnowmobilee:

• for models: Efi, 600, Mountain
• for makes: Arctic, Arctic-cat
• for years: 2001-2004
• brand: Starting Line Products
• mpn: 2257-s548355-97
• part type: Seal Exhaust Flange

payments exhaustsnowmobilee:

• wallet: Paypal
• credit card: Visa
• other

seller exhaustsnowmobilee:

• # reviews: 84650
• city: Boise, ID
• rating: 99.9%

offer exhaustsnowmobilee:

• options: Ship-to-home
• started: May 6, 2026
• sold: 0
• quantity: 3
• availability: In Stock

returns exhaustsnowmobilee:

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

shipping exhaustsnowmobilee:

• service: Standard
• cost: $0.00
• class: Standard
• transit: 3-6 Days
• type: Fixed

general exhaustsnowmobilee:

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

Starting Line Products 2257-S548355-97 Is Similar To:

• 09-233 Starting Line Products Staring (37.6% similar) ...(March 25th, 2017)
• 09-243 Starting Line Products Polaris Xc Gen Ii Ves Canister (40.7% similar) The Starting Line part number is this a slp canister for 2000 Polaris 600 XC gen ii chassis vies. This is brand new...(November 26th, 2018)
• 09-251 Starting Line Products Lightweight Silencer (37% similar) Which together offer low sound level at a much lighter weight. Photos are for reference only. Model's equipped with this latest technology still sound like a snowmobile should, but the level of output is lower than previously experienced our era 2000 Products. On the continent of north America. On...(April 27th, 2018)
• 09-260 Starting Line Products Staring (37.6% similar) Phone: address: 215 visit us at our San Diego location...(April 9th, 2017)
• 09-271 Starting Line Products Lightweight Silencer (37% similar) Durable ceramic finish. Lightweight, durable silencers. Slaps new era 2014 silencing technology features designs combined with some exotic materials and manufacturing techniques. Which together offer low sound level at a much lighter weight. On the continent of north America. Slaps era 2007 ...(April 27th, 2018)
• 09-288s Slp Starting Line Products (30.1% similar) Or adverts. Has some small dents and scratches on outlet pipe and bracket been cut off, look at images close. Denise at...(May 26th, 2017)
• 09-302 Starting Line Products New (33.1% similar) Lighten up your snowmobile by replacing the stock silencer with slaps lightweight version. This silencer is compatible with slp single pipe, allowing pipe to be added at a later date pounds lighter than stock. Sound level emissions are also a focus at slp. So what sets slp silencers apart from the ...(June 22nd, 2017)
• 09-310b Starting Line Products Slp (35.6% similar) This silencer is not compatible with slp single pipe. All silencers are finished with ceramic coating which not only looks great, but also reduces radiant heat emissions by as much 40, resulting in cooler Underwood temperatures. No ecu modification is required. Satin black ceramic coating era 2014...(October 31st, 2017)
• 09-310s Starting Line Products Slp (35.6% similar) So what sets slp silencers apart from the rest. For starters, each silencer has been Dino tested and field verified to insure maximum reliable horsepower is attained while shedding desired weight. Factory Belem has small scratches in coating and two dents, see attached photo's. This silencer is not ...(September 27th, 2017)
• 09-317s Starting Line Products Slp (35.6% similar) Refer to attached photos. So what sets slp silencers apart from the rest. For starters, each silencer has been Dino tested and field verified to insure maximum reliable horsepower is attained while shedding desired weight. No ecu modification is required. Factory Belem has some scratches and coating...(November 9th, 2017)
• 09-319b Starting Line Products Slp (35.6% similar) No ecu modification is required. Lighten up your snowmobile by replacing the stock silencer with slaps lightweight version. Slp tested and passed sae J-2567 stationary sound test below 88 decibels. This silencer is compatible with slp single pipe on 800 model's, allowing to be added at a later date...(January 3rd, 2018)