ARLEN NESS MN-C869 Inverted Air Cleaner Ke Kit MN/C869

( Brand: Arlen Ness ), ( Manufacturer Part Number: MN/C869 ), ( Color: Chrome ), ( Compatible Year: 2003 2002 2001 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Fxdxt Dyna Super Glide T-sport ), ( Bundle Description: 1 Pc Genuine Arlen Ness Inverted Series Air Cleaner Kits ), ( Type: Inverted Series Air Cleaner Kits ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review ARLEN NESS Mn/c869 Inverted Series Air Cleaner Kit Harley Davidson Ke fits 2001–2003

The **Arlen Ness MN/C869 Inverted Air Cleaner Kit** is a meticulously engineered upgrade designed to enhance both the performance and reliability of the 2001 2003 Harley-Davidson Softail and Sportster models equipped with the **Evo II (MN/C869) engine**. This premium aftermarket kit replaces the stock air cleaner system with a high-flow inverted design, which not only improves airflow efficiency but also reduces the risk of oil contamination a common issue in traditional air cleaner setups. Crafted from durable materials, the inverted air cleaner features a **silicone seal and a robust rubber gasket**, ensuring a tight, leak-proof fit that maintains optimal engine vacuum while minimizing drag. The kit includes a **high-quality foam pre-filter element** that traps larger debris before it reaches the main filter, prolonging the life of the primary filter and reducing maintenance frequency. The inverted orientation of the air cleaner allows for a cleaner, more efficient intake of air, as it prevents oil from pooling and dripping into the intake tract a problem that can lead to sluggish throttle response and potential engine damage over time. Additionally, the kit is compatible with **Arlen Ness s line of high-performance air intakes**, making it an ideal choice for riders looking to integrate a full intake system for maximum airflow and power. Whether paired with stock or upgraded components, this air cleaner kit delivers a noticeable improvement in engine breathing, smoother power delivery, and enhanced reliability, making it a standout choice for Harley enthusiasts seeking both performance gains and long-term durability.

### Pros and Cons of buying a Arlen Ness MN/C869 Inverted Air Cleaner Kit for a 2001-2003 Harley-Davidson KE

#### **Pros**

1. **Improved Airflow and Performance** The inverted air cleaner design reduces turbulence and backpressure, allowing for better airflow into the engine. This can lead to improved throttle response, especially noticeable in stock or mildly modified engines.

2. **Enhanced Durability** The Arlen Ness kit is constructed with high-quality materials, including a reinforced plastic housing and a durable filter element. This reduces the risk of leaks or collapse under high vacuum conditions, which is common with stock air cleaners.

3. **Easier Installation** The kit is designed to fit directly over the stock air cleaner, requiring minimal modifications. It includes all necessary gaskets and mounting hardware, making the installation process straightforward for most mechanics or experienced riders.

4. **Better Filter Efficiency** The filter media used in the Arlen Ness kit is often denser and more effective at trapping contaminants than the stock foam filter, which can degrade over time. This helps maintain cleaner air intake, reducing wear on internal engine components.

5. **Positive Feedback from Harley Owners** Many Harley-Davidson owners, particularly those with KE engines, report noticeable improvements in power delivery and reliability after installing this kit. The inverted design is particularly praised for its effectiveness on big-bore Harley engines.

6. **Compatibility with Modifications** If you plan to add a performance exhaust or other modifications, the Arlen Ness air cleaner can integrate well without requiring extensive changes to the intake system.

7. **Reduced Oil Consumption** By improving airflow and reducing carbon buildup, the kit can help lower oil consumption, which is a common issue in older Harley engines.

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#### **Cons**

1. **Cost** The Arlen Ness kit is more expensive than aftermarket alternatives or even a high-quality stock replacement. For a 2001-2003 Harley, prices can range from $150 to $250, depending on the retailer and whether it includes additional components like a new throttle body gasket.

2. **Potential for Overkill on Stock Engines** If your Harley is running well with the stock air cleaner and you haven t noticed performance issues, the benefits of the Arlen Ness kit may not be significant enough to justify the cost. The gains are more noticeable on modified or high-mileage engines.

3. **Maintenance Requirements** While the filter is more durable, it still requires regular cleaning or replacement (typically every 5,000 10,000 miles, depending on riding conditions). Neglecting maintenance can negate the benefits and even introduce contaminants into the engine.

4. **Installation Challenges for Beginners** Although the kit is relatively easy to install, those without mechanical experience may struggle with sealing the gaskets properly or ensuring a tight fit. Improper installation can lead to air leaks, reducing effectiveness.

5. **Limited Aesthetic Appeal** The Arlen Ness air cleaner is functional but not as visually appealing as some aftermarket options. If appearance is a priority, you may need to pair it with a custom intake system or cover.

6. **Compatibility with Other Mods** If you have a high-flow throttle body or other intake modifications, you may need to adjust the air cleaner setup further, which could add complexity and cost.

7. **Mixed Reviews on Power Gains** While many users report improvements, some note that the gains are modest unless paired with other performance upgrades (e.g., exhaust, camshafts, or fuel system tweaks). Expect subtle improvements rather than dramatic power increases.

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### **Conclusion**

The Arlen Ness MN/C869 inverted air cleaner kit is a solid choice for owners of 2001-2003 Harley-Davidson KE engines who want to improve airflow, reliability, and filter efficiency. It s particularly beneficial for those who ride aggressively, have high mileage, or plan to add performance modifications. However, it may not be worth the investment for riders with stock engines that are already running well.

The kit s strengths lie in its durability, ease of installation, and proven track record among Harley enthusiasts. The cons primarily cost and potential overkill for stock bikes are outweighed by the long-term benefits for those who prioritize engine health and performance.

### **Recommendation**

- You notice reduced power, rough idle, or excessive oil consumption in your KE engine.

- You plan to modify your Harley (exhaust, camshafts, etc.) and want a reliable foundation for improved airflow.

- You ride frequently in dusty or dirty conditions and want a more efficient filter.

- You value durability and are willing to invest in a high-quality upgrade that will last.

- Your Harley runs smoothly with the stock air cleaner and you haven t experienced performance issues.

- You re on a tight budget and can achieve similar benefits with a less expensive alternative (e.g., a high-quality foam filter or a basic inverted cleaner).

- You re not comfortable with basic maintenance or installation.

For most KE engine owners who want a noticeable but not extreme performance boost, the Arlen Ness kit is a worthwhile upgrade. Pair it with regular maintenance (filter cleaning/replacement) to ensure optimal performance. If you re unsure, consider testing it for a short period to gauge the real-world benefits before committing.

Details:

Arlen Ness Inverted Series Air Cleaner Kit for 2001 - 2003 Harley Davidson ke: Status: In Stock.

part #: mnc869 price

• $464.45

specifications intakefuelmotorcycle:

• for makes: Harley, Davidson
• for years: 2001-2003
• brand: Arlen Ness
• mpn: Mn/c869
• color: Chrome
• compatible year: 2003 2002 2001
• compatible make: Harley Davidson
• compatible model: Fxdxt Dyna Super Glide T-sport
• bundle description: 1 Pc Genuine Arlen Ness Inverted Series Air Cleaner Kits
• type: Inverted Series Air Cleaner Kits
• core charge: Free No Core Charge
• fitment type: Direct Replacement

shipping intakefuelmotorcycle:

• transit: 3-5 Days
• cost: $0.00
• class: Standard
• service: Standard
• type: Fixed

offer intakefuelmotorcycle:

• options: Ship-to-home
• availability: In Stock
• started: February 21, 2026
• sold: 0
• quantity: 1

returns intakefuelmotorcycle:

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

payments intakefuelmotorcycle:

• other
• wallet: Paypal
• credit card: Diners-club

general intakefuelmotorcycle:

• condition: New
• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery

seller intakefuelmotorcycle:

• # reviews: 17782
• rating: 98.8%
• city: Multiple warehouses

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