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  2. sku: 10105103693033891
  3. SPORTS INC 4604-S661049-14

SPORTS PARTS INC 4604-S661049-14 Spi Pipe Exhaust Seal

fits year: 2003.

4604-s661049-14 Sports Parts Inc Spi Y-pipe To Pipe Exhaust Seal-i.d.-67.3mm-o.d.-85mm-height-17mm For 2003

( Brand: Sports Parts Inc ), ( Manufacturer Part Number: 4604-S661049-14 ), ( Part Type: Pipe Seal Exhaust )

Review SPORTS PARTS INC Spi Y pipe To Exhaust Seal-i.d.-67.3mm-o.d.-85mm- Height 17mm fits 2003

The **Sports 4604-S661049-14 SPI Y-Pipe Exhaust Seal** is a precision-engineered aftermarket component designed to enhance both the performance and longevity of the exhaust system on a 2003 model vehicle equipped with a specific turbocharged or high-performance engine setup. Crafted from high-quality, heat-resistant materials, this Y-pipe exhaust seal is engineered to withstand the extreme temperatures and pressures generated by aggressive driving, turbocharging, or forced induction applications. With an **internal diameter (I.D.) of 67.3mm** and an **external diameter (O.D.) of 85mm**, this seal is tailored to fit snugly within the exhaust manifold and catalytic converter junction, ensuring a secure and leak-free connection that minimizes backpressure while maximizing airflow efficiency. The **17mm height** of the seal allows for proper clearance and alignment with the surrounding exhaust components, reducing the risk of interference or binding during operation. Ideal for applications where a reliable, durable exhaust seal is critical such as in turbocharged engines, supercharged setups, or high-performance modifications this seal is built to resist warping, cracking, or degradation over time, even under prolonged exposure to high temperatures. Whether installed as part of a full exhaust upgrade or as a standalone solution to address leaks, this Y-pipe seal ensures a tight, gasket-free seal that maintains exhaust system integrity while contributing to optimal engine performance and efficiency.

### **Pros and Cons of buying a 4604-S661049-14 SPI Y-Pipe Exhaust Seal (ID: 67.3mm, OD: 85mm, Height: 17mm) for a 2003 Vehicle**

#### **Pros:**

1. **OEM Fitment and Compatibility** This part is designed as an original equipment replacement, meaning it should fit your 2003 vehicle s exhaust system without modifications. The specified inner diameter (ID) and outer diameter (OD) dimensions ensure a proper seal with the Y-pipe and downstream components.

2. **Durability and Heat Resistance** SPI (Specialty Products Inc.) is a reputable manufacturer known for producing high-quality exhaust components. This seal is likely made from heat-resistant materials (such as silicone or ceramic-coated rubber) that can withstand the extreme temperatures found in exhaust systems, reducing the risk of premature failure.

3. **Prevents Leaks and Backpressure** A properly installed exhaust seal prevents exhaust gases from leaking into the cabin or engine bay, improving efficiency and reducing noise. It also helps maintain optimal backpressure, which is crucial for engine performance and fuel economy.

4. **Easy Installation** The seal appears to be a straightforward replacement part, requiring minimal tools and time to install. Most mechanics or DIY enthusiasts can replace it without specialized equipment, provided they have basic exhaust repair knowledge.

5. **Cost-Effective Solution** Compared to full exhaust system replacements or custom fabrication, this seal is a budget-friendly fix for a common issue (e.g., a failing OEM seal or damage from road debris). It extends the life of your existing exhaust system.

6. **Compatibility with Aftermarket Upgrades** If you ve modified your exhaust system (e.g., added a cat-back system or performance exhaust), this seal may still fit, depending on the downstream components. Always verify compatibility with your specific setup.

7. **Warranty and Support** SPI offers warranties on their products, and purchasing from an authorized dealer or reputable retailer may include additional support or return policies.

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#### **Cons:**

1. **Potential Mismatch with Aftermarket Exhausts** While this seal is designed for OEM fitment, aftermarket exhaust systems (especially those with different pipe diameters or angles) may not accommodate it perfectly. Always measure your exhaust s ID/OD and confirm compatibility before purchasing.

2. **Quality Variability by Seller** Purchasing from unauthorized or third-party sellers (e.g., eBay, Amazon, or unverified online marketplaces) may result in counterfeit or substandard seals. Buying from a dealership, specialty exhaust shop, or trusted online retailer (e.g., RockAuto, Jegs, or SPI s official site) reduces this risk.

3. **Installation Challenges** If the surrounding exhaust components are corroded, bent, or difficult to access, installation may require additional labor or tools (e.g., exhaust clamps, a jack, or a helper). Improper installation can lead to leaks or damage.

4. **Limited Longevity in Harsh Conditions** While SPI seals are durable, extreme conditions (e.g., constant high temperatures, road salt corrosion, or off-road use) may degrade the seal faster than expected. Regular inspections are recommended.

5. **Price Sensitivity** Depending on the retailer, this seal may be priced higher than generic or no-name alternatives. However, the trade-off is often better quality and longevity.

6. **No Universal Fit** This seal is specific to your 2003 vehicle s exhaust configuration. If your Y-pipe or downstream pipes have been modified (e.g., cut, welded, or resized), the seal may not fit as intended.

7. **Potential for Overkill** If your exhaust system is already in good condition and the seal hasn t failed, replacing it prematurely may not be necessary. Only replace it if you re experiencing leaks, rattles, or performance issues.

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### **Conclusion:**

The **4604-S661049-14 SPI Y-Pipe Exhaust Seal** is a **reliable, high-quality replacement part** for a 2003 vehicle s exhaust system, assuming it matches your OEM specifications. It offers **durability, leak prevention, and ease of installation**, making it a practical choice for addressing exhaust seal failures. However, **compatibility with aftermarket exhausts, sourcing from reputable sellers, and proper installation** are critical to ensuring success.

If your exhaust system is stock or you ve confirmed the seal s fitment, this is a **strong recommendation**. If you ve modified your exhaust or are unsure about compatibility, **verify measurements and consult with a mechanic** before purchasing. For budget-conscious buyers, always compare prices across trusted retailers to ensure you re getting the best value.

**Final Recommendation:**

- **Buy from an authorized SPI dealer or a reputable exhaust parts retailer** (e.g., RockAuto, Jegs, or a local auto parts store with a good return policy).

- **Inspect your exhaust system** to confirm the seal s compatibility with your current setup.

- **Follow installation instructions carefully** to avoid damage or leaks.

- **Consider purchasing a spare** if your vehicle is frequently driven in harsh conditions.

This seal is a **smart investment** for maintaining exhaust integrity and engine performance in a 2003 vehicle.

Details:

2003 - Arctic Cat Mountain 600 EFI 136. 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.

2003 - Arctic Cat Mountain 900 144. SPI Y-Pipe to Pipe Exhaust Seal-I.D.-67.3mm-O.D.-85mm- height 17mm for 2003 Arctic Cat Mountain 900 Early Build Snowmobile: Y-pipe exhaust seal.: Brand: Sports Parts Inc, model Number: 4604-S661049-14.

part #: 4604s66104914 price

  • $20.58

specifications exhaustsnowmobilee:

  • for years: 2003
  • brand: Sports Parts Inc
  • mpn: 4604-s661049-14
  • part type: Pipe Seal Exhaust

general exhaustsnowmobilee:

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

seller exhaustsnowmobilee:

  • # reviews: 84557
  • rating: 99.9%
  • city: San Marcos, CA

payments exhaustsnowmobilee:

  • other
  • credit card: Visa
  • wallet: Paypal

shipping exhaustsnowmobilee:

  • cost: $0.00
  • type: Fixed
  • class: Standard
  • transit: 3-7 Days
  • service: Standard

offer exhaustsnowmobilee:

  • started: May 4, 2026
  • quantity: 9
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0

returns exhaustsnowmobilee:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days
for years: 2003, part type: pipe seal exhaust,
category: snowmobile parts > exhaust, sku: 10105103693033891,
Sports Parts Inc 4604-S661049-14 Is Similar To:
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1 offer $20.58 USD
  • New. Offer #1 priced at $20.58 + $0.00 shipping estimate = $20.58* total. 2003 - 2003 Arctic Cat Mountain Cat 900 Early Build. Y-pipe to pipe exhaust seal.FREE SHIPPING

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