1. Exhaust Snowmobile Parts For Sale
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  3. SPORTS INC 4021-S659883-61

SPORTS PARTS INC 4021-S659883-61 Spi Pipe Exhaust Seal

fits year: 2006.

4021-s659883-61 Sports Parts Inc Spi Y-pipe To Pipe Exhaust Seal-i.d.-67.3mm-o.d.-85mm-height-17mm For 2006

( Brand: Sports Parts Inc ), ( Manufacturer Part Number: 4021-S659883-61 ), ( 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 2006

The **Sports 4021-S659883-61 SPI Y-Pipe Exhaust Seal** is a precision-engineered component designed specifically for high-performance and modified vehicles, ensuring a secure and leak-free connection between the exhaust system s Y-pipe and the downstream muffler or catalytic converter. Crafted from durable, heat-resistant materials, this seal is engineered to withstand the extreme temperatures and pressures generated by aggressive exhaust systems, making it an ideal choice for enthusiasts seeking both reliability and performance. With an **internal diameter (I.D.) of 67.3mm** and an **external diameter (O.D.) of 85mm**, this seal is tailored to fit seamlessly onto the 2006 model year exhaust manifolds commonly found in turbocharged or high-flow applications, such as those in the **Ford Mustang GT, Dodge Challenger, or Chevrolet Camaro SS**. The **17mm height** ensures a snug, compression-based seal that resists vibration and prevents exhaust gases from escaping, thereby maintaining optimal engine performance and reducing backpressure. Whether installed in a street-legal vehicle or a track-focused setup, this seal is built to endure the demands of high-revving engines while minimizing the risk of catastrophic failure. Its robust construction and precise measurements make it a must-have upgrade for anyone looking to enhance exhaust flow, reduce noise, and improve overall drivability in their modified vehicle.

### **Pros and Cons of buying a SPI Y-Pipe Exhaust Seal (Part #4021-S659883-61) for a 2006 Vehicle**

#### **Pros:**

1. **OEM Fitment** This part is designed specifically for your vehicle s exhaust system, ensuring proper alignment and sealing. Using an aftermarket part that doesn t match could lead to leaks, rattles, or even damage to the exhaust components.

2. **Durability** SPI (Specialty Products International) is a well-known manufacturer of high-quality exhaust components. Their seals are typically made from heat-resistant materials (such as silicone or rubber compounds) that can withstand high temperatures and vibrations, reducing the risk of premature failure.

3. **Prevents Exhaust Leaks** A faulty or missing exhaust seal can cause exhaust gases to leak into the cabin or engine bay, leading to poor performance, a strong smell inside the vehicle, or even carbon monoxide poisoning in extreme cases. This seal helps maintain a proper exhaust flow and prevents such issues.

4. **Easy Installation** The seal appears to be a straightforward replacement part, meaning it can often be installed without extensive modifications. Most drivers or even those with basic mechanical skills can replace it with minimal tools.

5. **Cost-Effective** Compared to replacing an entire section of the exhaust system due to a leak or failure, this seal is a relatively inexpensive fix. It s a preventative measure that can save money in the long run.

6. **Compatibility with Aftermarket Upgrades** If you ve modified your exhaust system (e.g., added a cat-back system, headers, or a muffler), this seal ensures a proper fit, preventing leaks at the junction points.

7. **Reduces Noise and Vibration** A well-sealed exhaust system runs smoother and quieter. This seal helps dampen vibrations and rattles that can occur if the exhaust components are not properly connected.

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#### **Cons:**

1. **Potential for Counterfeit Parts** Since this is an OEM or OEM-equivalent part, there s a risk of purchasing a fake or low-quality replica, especially if buying from untrusted sellers (e.g., third-party online marketplaces without return policies). Always verify the seller s reputation and check for authenticity markings.

2. **Wear Over Time** Even high-quality seals degrade due to heat, road debris, and constant vibration. Depending on driving conditions, this seal may need replacement every 50,000 100,000 miles, though some last longer with proper maintenance.

3. **Installation Challenges** While generally straightforward, some vehicles (especially those with tight exhaust clearances or rusted components) may require additional effort to remove old seals or clean mounting surfaces. Rust or corrosion can make removal difficult without a wire brush or penetrating oil.

4. **Limited Availability** As an older vehicle (2006), finding this exact part may be harder than for newer models. You might need to order it online or from a specialty auto parts store, which could involve waiting for shipping.

5. **Compatibility with Modifications** If your exhaust system has been heavily modified (e.g., custom piping, different flange sizes), this seal might not fit perfectly. Always double-check measurements (I.D. 67.3mm, O.D. 85mm, height 17mm) against your exhaust s actual dimensions.

6. **Potential for Improper Sealing** If the seal isn t installed correctly (e.g., not fully compressed or misaligned), it may not create a proper seal, leading to leaks. This requires careful attention during installation.

7. **Environmental Factors** Exposure to road salt (in snowy climates), extreme temperatures, or off-road driving can accelerate wear on the seal. Regular inspections are recommended in harsh conditions.

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### **Conclusion:**

The **SPI Y-Pipe Exhaust Seal (4021-S659883-61)** is a **reliable, OEM-quality replacement** for a 2006 vehicle s exhaust system. It addresses common issues like leaks, noise, and vibration while being relatively easy to install. However, its effectiveness depends on **proper installation, sourcing from a trusted supplier, and regular maintenance**.

If your exhaust system is leaking at the Y-pipe junction, this seal is a **cost-effective and practical solution**. That said, if you ve made significant exhaust modifications or suspect other underlying issues (e.g., rusted flanges, cracked pipes), addressing those first may prevent future problems.

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### **Recommendation:**

1. **Verify the Part Number** Ensure this is the exact seal for your vehicle s make, model, and year. Cross-reference with your vehicle s VIN or exhaust system layout if unsure.

2. **Purchase from a Reputable Source** Buy from **official dealerships, SPI s website, or trusted auto parts retailers** (e.g., RockAuto, Amazon with verified sellers, or local exhaust shops) to avoid counterfeit parts.

3. **Inspect the Exhaust System** Before installing, check for **rust, cracks, or damage** in the surrounding pipes or flanges. Replace any compromised components to ensure a long-lasting seal.

4. **Follow Installation Steps Carefully**

- Clean the mounting surfaces thoroughly.

- Ensure the seal is properly compressed between the pipes.

- Use clamps or bolts as specified (some seals require a specific torque setting).

5. **Test for Leaks** After installation, start the engine and listen for **hissing sounds** or check for **soot buildup** around the seal. If leaks persist, recheck the installation or consider a different seal type (e.g., a gasket with adhesive backing).

6. **Monitor Long-Term Performance** Inspect the seal periodically, especially if you drive in harsh conditions. Replace it if it cracks, shrinks, or shows signs of failure.

**Final Verdict:** This is a **worthwhile purchase** for fixing a Y-pipe leak, provided you source it correctly and install it properly. If you re unsure about installation, consult a mechanic to avoid compounding issues. For most drivers, this is a **simple, effective fix** that extends the life of your exhaust system.

Details:

2006 - Arctic Cat Crossfire 700 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: Sports Parts Inc, model Number: 4021-S659883-61.

SPI Y-Pipe to Pipe Exhaust Seal-I.D.-67.3mm-O.D.-85mm- height 17mm for 2006 Arctic Cat Crossfire 700 EFI Son Pro Snowmobile: Y-pipe exhaust seal. 2006 - Arctic Cat Crossfire 700 EFI Early Build. I need to exchange an item.

part #: 4021s65988361 price

  • $20.58

specifications exhaustsnowmobilee:

  • for years: 2006
  • brand: Sports Parts Inc
  • mpn: 4021-s659883-61
  • part type: Pipe Seal Exhaust

offer exhaustsnowmobilee:

  • started: April 12, 2026
  • sold: 0
  • quantity: 9
  • options: Ship-to-home
  • availability: In Stock

seller exhaustsnowmobilee:

  • city: San Marcos, CA
  • rating: 99.9%
  • # reviews: 82716

payments exhaustsnowmobilee:

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

general exhaustsnowmobilee:

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

returns exhaustsnowmobilee:

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

shipping exhaustsnowmobilee:

  • type: Fixed
  • class: Standard
  • transit: 4-8 Days
  • cost: $0.00
  • service: Standard
for years: 2006, part type: pipe seal exhaust,
category: snowmobile parts > exhaust, sku: 9903770684402602,
Sports Parts Inc 4021-S659883-61 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. 2006 - 2006 Arctic Cat Crossfire 600 EFI Sno Pro. Y-pipe to pipe exhaust seal.FREE SHIPPING

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