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  3. POLARIS 1263139

POLARIS 1263139 Exhaust Muffler

fits model: Efi, 570, Sportsman. make: Polaris. year: 2018.

1263784 Polaris 1263139 2018 Sportsman 570 Efi Exhaust Muffler

( Manufacturer Part Number: 1263139 ), ( Type: Exhaust Muffler ), ( Country Of Origin: United States )

Review POLARIS Exhaust Muffler fits SPORTSMAN EFI 570 2018

The **Polaris 1263113 2018 Sportsman 570 EFI Exhaust Muffler** is a precision-engineered aftermarket component designed to enhance both the performance and aesthetic appeal of your 2018 Polaris Sportsman 570 EFI model. Crafted from high-quality, durable materials, this exhaust muffler is built to withstand the rigorous demands of off-road adventures while delivering a refined and aggressive sound signature. The muffler features a robust, heat-resistant construction, ensuring longevity even under the most intense riding conditions, from deep trails to rough terrain. Its sleek, contoured design not only improves airflow efficiency but also integrates seamlessly with the stock exhaust system, maintaining a clean and professional appearance. Whether you're seeking a subtle upgrade for daily rides or a bold statement for competitive events, this muffler offers a perfect balance of functionality and style. Engineered to optimize exhaust flow, it helps reduce backpressure, allowing the engine to breathe more freely and potentially improving throttle response and overall power delivery. Additionally, the muffler s polished finish and precise fitment ensure a snug installation, minimizing the risk of leaks or rattles. For riders who demand both performance and precision, the **2018 Polaris Sportsman 570 EFI Exhaust Muffler** is an essential upgrade that elevates your ATV s performance while turning heads on the trail.

### Pros and Cons of buying a Polaris 12631139 2018 Sportsman 570 EFI Exhaust Muffler

#### **Pros:**

1. **Improved Performance** A high-quality exhaust muffler can enhance airflow, leading to better engine efficiency and power output. The 2018 Sportsman 570 EFI exhaust system is designed to work with the engine s specifications, potentially improving throttle response and overall performance.

2. **Enhanced Sound** If you prefer a deeper, more aggressive exhaust note, this muffler may provide a more satisfying sound compared to the stock setup. Many aftermarket exhausts are tuned for a louder, sportier tone.

3. **Compatibility** This is an OEM (Original Equipment Manufacturer) or high-quality aftermarket part designed specifically for the 2018 Polaris Sportsman 570 EFI. It should fit seamlessly without modification, reducing the risk of installation issues.

4. **Durability** Polaris exhaust components are built to withstand the demands of off-road use, including exposure to dirt, water, and rough terrain. A well-made muffler should last for many riding seasons with proper maintenance.

5. **Legal Compliance** If you re unsure about local noise regulations, an OEM or factory-approved exhaust system is less likely to violate decibel limits compared to heavily modified aftermarket parts.

6. **Resale Value** Keeping the vehicle closer to stock specifications can help maintain its resale value, especially if you plan to sell it in the future.

7. **Simplified Maintenance** Since it s designed for the 2018 model, finding replacement parts or service support should be easier compared to non-OEM or mismatched aftermarket components.

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#### **Cons:**

1. **Limited Performance Gain** If you re already running a well-tuned engine with high-quality air filters and fuel systems, the performance improvement from this exhaust may be minimal. The gains are more noticeable on stock or lightly modified engines.

2. **Cost** While not excessively expensive, aftermarket exhaust systems can still be a significant investment, especially if you opt for premium brands. If you re on a tight budget, this may not be the best place to allocate funds.

3. **Weight** Exhaust systems, including mufflers, add weight to the vehicle. While the difference may be negligible, it could slightly impact handling or fuel efficiency in extreme cases.

4. **Potential for Rust or Wear** Even OEM exhausts can develop rust or wear over time, especially if the vehicle is frequently ridden in wet or corrosive environments. Regular cleaning and inspection are necessary to prevent issues.

5. **Noise Concerns** Some riders or local regulations may find the exhaust tone too loud, leading to potential complaints or fines. If you re sensitive to noise or ride in noise-restricted areas, this could be a drawback.

6. **Installation Complexity** While designed for easy installation, exhaust systems require careful handling to avoid damaging the vehicle s frame or other components. If you re not mechanically inclined, professional installation may be necessary, adding to the cost.

7. **Aesthetic Preferences** Some riders prefer the stock look of their ATVs. Installing an aftermarket exhaust may alter the vehicle s appearance, which could be a consideration if you value the original design.

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### **Conclusion:**

The **Polaris 12631139 2018 Sportsman 570 EFI Exhaust Muffler** is a solid choice for riders looking to enhance performance, sound, and compatibility without drastic modifications. It strikes a balance between OEM reliability and aftermarket performance benefits. However, the decision to purchase it depends on your priorities:

- **If you want improved performance, a deeper sound, and a reliable fit**, this muffler is a worthwhile upgrade.

- **If you re already heavily modified or on a tight budget**, the gains may not justify the cost.

- **If noise regulations or aesthetic preferences are concerns**, you may need to weigh the pros and cons carefully.

### **Recommendation:**

If you re satisfied with the stock exhaust s performance but want a slight upgrade in sound and efficiency, this muffler is a **good investment**. Pair it with a reputable brand (if aftermarket) or ensure it s a genuine Polaris part to avoid quality issues. For maximum performance, consider pairing it with other upgrades like a high-flow air filter or tuned fuel system.

If you re unsure, test-ride the vehicle with the new exhaust to confirm whether the sound and performance meet your expectations. Ultimately, this upgrade is best suited for riders who want a **moderate boost in performance and a more engaging exhaust note** without overhauling their ATV.

Details:

Free shipping is applicable to most items but not all. WELD-EXHAUST,SILENCER 1263139 1263784. 2018 Polaris Sportsman 570 Efi Exhaust Muffler 1263139; 1263784.

part #: 1263139 prices

  • $54.99-$249.99

specifications atvhosesfilters:

  • for models: Efi, 570, Sportsman
  • for makes: Polaris
  • for years: 2018
  • mpn: 1263139
  • type: Exhaust Muffler
  • country of origin: United States

general atvhosesfilters:

  • condition: Used
  • ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Air Hoses, Lines Pipes

offer atvhosesfilters:

  • quantity: 1
  • started: April 6, 2026
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0

shipping atvhosesfilters:

  • cost: $0.00
  • transit: 3-7 Days
  • carrier: FedEx, USPS
  • type: Fixed
  • service: Economy, FedEx Ground / FedEx Home Delivery, USPS Priority Mail
  • class: Economy, Standard, Expedited

returns atvhosesfilters:

  • policy: No Returns

seller atvhosesfilters:

  • # reviews: 15064
  • rating: 100.0%
  • city: Cold Spring, Minnesota

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for models: efi, 570, sportsman, for makes: polaris, for years: 2018, type: exhaust muffler, country of origin: united states,
category: atv parts > atv, side-by-side utv parts accessories > air intake fuel delivery > air hoses, lines pipes, sku: 16801236049290773,
Polaris 1263139 Is Similar To:
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5 offers $54.99–$249.99 USD
  • Used. Offer #1 priced at $54.99 + $0.00 shipping estimate = $54.99* total. WELD-EXHAUST,SILENCER .FREE SHIPPING
  • New. Offer #2 priced at $249.99 + $0.00 shipping estimate = $249.99* total. New.FREE SHIPPING
  • New. Offer #3 priced at $135.00 + $0.00 shipping estimate = $135.00* total. 1 x Repair Kit : 5412659, 5412233, 7041804, 5010192. Sportsman 570 EFI 2014-2026.FREE SHIPPING
  • New. Offer #4 priced at $119.00 + $0.00 shipping estimate = $119.00* total. Sportsman 400 2001-2014. Sportsman 500 EFI 2006-2009.FREE SHIPPING
  • New. Offer #5 priced at $594.99 + $0.00 shipping estimate = $594.99* total. 5243518). 1 x Muffler (SILENCER, BLK) (Replaces OEM part No.FREE SHIPPING

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