ARLEN NESS MN-0CXS Inverted Air Cleaner Yf Kit MN/0CXS
fits make: Harley, Davidson. year: 2004–2008.
( Brand: Arlen Ness ), ( Manufacturer Part Number: MN/0CXS ), ( Color: Black ), ( Compatible Year: 2008 2007 2006 2005 2004 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Xl883 Sportster ), ( 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/0cxs Inverted Series Air Cleaner Kit Harley Davidson Yf fits 2004–2008
The **Arlen Ness MN/0CXS Inverted Air Cleaner Kit** is a meticulously engineered aftermarket upgrade designed to enhance both the performance and reliability of the **2004 2008 Harley-Davidson Softail YF (Milwaukee-Eight) engines**. This high-quality kit replaces the stock air cleaner assembly with a precision-machined inverted design, featuring a **smooth, low-restriction intake system** that maximizes airflow while minimizing turbulence. The core of the kit includes a **durable, high-flow aluminum air box** with a **sealed, gasketed lid** to prevent leaks and maintain optimal vacuum levels, ensuring consistent throttle response and power delivery. The inverted orientation of the air cleaner eliminates the need for bulky, restrictive baffles found in traditional designs, allowing for a cleaner, more efficient intake of air directly from the engine bay. This not only improves horsepower and torque but also reduces the risk of clogging from debris, extending the lifespan of the air filter and intake components.
The **MN/0CXS kit** is crafted with **high-grade materials**, including **anodized aluminum** for the air box and **heat-treated steel** for mounting hardware, ensuring durability and resistance to corrosion critical factors for riders who push their bikes through demanding conditions. The kit includes a **high-performance foam or cotton-gauze filter** (depending on the specific variant), which offers superior filtration while maintaining minimal airflow resistance. The installation process is streamlined, with **pre-drilled mounting points** and **O-ring seals** that guarantee a tight, leak-free fit, reducing the risk of vacuum leaks that can degrade performance. Whether you're chasing straight-line speed, improving throttle response, or simply seeking a more reliable intake system, this kit delivers a noticeable upgrade over the stock setup.
Beyond performance gains, the **Arlen Ness MN/0CXS** also enhances the aesthetic appeal of your YF, offering a cleaner, more aggressive look with its sleek, integrated design. The kit is fully compatible with stock and aftermarket exhaust systems, making it a versatile choice for both stock and modified Harley-Davidson Softails. Backed by Arlen Ness s reputation for precision engineering and reliability, this air cleaner kit is an excellent investment for riders who demand both power and dependability from their Milwaukee-Eight engines.
**Pros and Cons of buying a Arlen Ness MN/0CXS Inverted Air Cleaner Kit for a 2004 2008 Harley-Davidson YF (Sportster 883/1200)**
### **Pros**
1. **Improved Airflow and Performance**
The inverted air cleaner design reduces backpressure, allowing more air to reach the engine. This can enhance throttle response, especially noticeable in stock or mildly modified Sportsters. The larger intake tube and optimized filter media help maintain airflow efficiency even under higher loads.
2. **Better Filtration and Durability**
The MN/0CXS kit uses high-quality filter media that provides superior dust and debris filtration compared to stock Harley filters. The inverted design prevents oil from pooling, reducing the risk of clogging and extending filter life. The durable construction also minimizes the need for frequent replacements.
3. **Easier Installation and Maintenance**
The kit is designed to fit the YF model without extensive modifications. The inverted orientation makes it easier to access and replace the filter, especially in tight engine bays. Some owners report that the installation is straightforward, though it may require basic tools and patience.
4. **Aesthetic Appeal**
The Arlen Ness kit has a sleek, modern look that complements the Sportster s aggressive styling. The black or matte finish options blend well with aftermarket exhaust and intake systems, giving the bike a cohesive, upgraded appearance.
5. **Compatibility with Modifications**
If you plan to add a cold air intake (CAI) or other performance upgrades, the Arlen Ness kit integrates well with these modifications. It provides a solid foundation for further tuning without conflicting with other aftermarket parts.
6. **Positive User Feedback**
Many owners of the 2004 2008 Sportster report noticeable improvements in power delivery and reliability after installing the MN/0CXS kit. Reviews often highlight reduced intake restriction and fewer issues with oil migration compared to stock filters.
---
### **Cons**
1. **Cost**
The Arlen Ness kit is more expensive than a basic OEM filter or even some generic aftermarket options. Pricing typically ranges between $150 $250, depending on whether you include additional components like the intake tube or gaskets. This can be a significant investment for riders on a tight budget.
2. **Potential for Oil Leaks**
While the inverted design reduces oil pooling, some users report minor oil leaks around the gasket or filter housing, especially if installation isn t perfectly sealed. Regular inspections and maintenance are necessary to prevent oil from dripping onto the engine or exhaust.
3. **Installation Complexity**
Although the kit is designed for relative ease of installation, it may require removing the stock airbox and exhaust headers, which can be time-consuming for inexperienced mechanics. Some riders report needing to modify or replace stock components (e.g., gaskets, mounting brackets) to ensure a proper fit.
4. **Limited Stock Performance Gains**
If your Sportster is already running well with stock tuning, the gains from the Arlen Ness kit may be modest. The improvements are more noticeable in bikes with stock or mildly modified engines. For heavily modified or turbocharged Sportsters, the benefits may be less significant.
5. **Weight Considerations**
The inverted air cleaner adds some weight to the front of the bike, which could slightly affect handling dynamics. However, the impact is minimal compared to other modifications like exhaust systems or suspension upgrades.
6. **Compatibility with Stock Exhaust**
In some cases, the stock exhaust headers or mufflers may not align perfectly with the new air cleaner setup. This could require additional modifications or the purchase of compatible aftermarket exhaust components to avoid gaps or improper sealing.
---
### **Conclusion and Recommendation**
The **Arlen Ness MN/0CXS Inverted Air Cleaner Kit** is a high-quality upgrade for the 2004 2008 Harley-Davidson YF Sportster, offering tangible benefits in airflow, filtration, and durability. It is particularly well-suited for riders who prioritize performance, reliability, and aesthetics without resorting to aggressive modifications like turbocharging or big-bore kits.
**Recommendation:**- **Buy it if:** You want a noticeable improvement in airflow and engine response, plan to keep the bike stock or with mild modifications, and are willing to invest in a premium aftermarket part. It s also a great choice if you dislike the stock air cleaner s design or reliability issues.
- **Skip it if:** You re on a tight budget, the bike is already heavily modified, or you prefer simpler, cheaper alternatives like a cold air intake or high-flow stock filter. If you re uncomfortable with installation, consider having a mechanic fit it.
For most riders, the **Arlen Ness kit is a worthwhile upgrade** that enhances both performance and longevity. Just be prepared for the higher cost and ensure proper installation to avoid potential oil leaks or fitment issues. Pair it with a quality oil filter and regular maintenance to maximize its benefits.
Details:
Arlen Ness Inverted Series Air Cleaner Kit for 2004 - 2008 Harley Davidson yf: Status: In Stock.
part #: mn0cxs price
- $484.05
specifications intakefuelmotorcycle:
- for makes: Harley, Davidson
- for years: 2004-2008
- brand: Arlen Ness
- mpn: Mn/0cxs
- color: Black
- compatible year: 2008 2007 2006 2005 2004
- compatible make: Harley Davidson
- compatible model: Xl883 Sportster
- 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
payments intakefuelmotorcycle:
- other
- wallet: Paypal
- credit card: Diners-club
shipping intakefuelmotorcycle:
- transit: 3-5 Days
- cost: $0.00
- service: Standard
- class: Standard
- type: Fixed
seller intakefuelmotorcycle:
- rating: 99.2%
- # reviews: 22109
- city: Multiple warehouses
offer intakefuelmotorcycle:
- availability: In Stock
- started: May 3, 2026
- quantity: 1
- sold: 0
- options: Ship-to-home
general intakefuelmotorcycle:
- Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
- condition: New
returns intakefuelmotorcycle:
- time: 30 Days
- policy: Returns Accepted
- paid by: Seller
Arlen Ness MN-0CXS Is Similar To:
- 1010-0179 Arlen Ness Big Sucker Performance (31.7% similar) A picture is worth thousand words. Note: kit includes all mounting hardware and instructions but does not come with a cover. These are not part bikes that I am leaving outside in the weather. Let's all keep this worry and aggravation free. Ready to be installed. Please look closely at the pictures. ...(February 23rd, 2017)
- 1010-0181 Arlen Ness Big Sucker (26.3% similar) Please look closely at the pictures. These are not part bikes that I am leaving outside in the weather. It is unnecessary because I stand behind my service and products. Note: kit includes all mounting hardware and instructions but does not come with a cover. Keep in mind you are buying on new and ...(May 31st, 2017)
- 1010-0351 Arlen Ness Big Sucker Performance (31.7% similar) If you are unsure whether or not it will fit yours just ask and I be happy to cross reference for. Ready to be installed. Please look closely at all photos. Note: kit includes all mounting hardware and instructions but does not come with a cover. Let's all keep this worry and aggravation free. I ...(February 22nd, 2017)
- 1010-0618 Arlen Ness Chrome Retro Stage Big Sucker Air Cleaner Kit (44.3% similar) Manufacturers note: not legal for street use on pollution controlled vehicles. Why wanna-RD. Bike davidson DNA: convertible FUDs 2000 fat bob faxed low rider faxed fixedly 2006 injected street faxed faxed super glide FUDs-con 1999 custom faxed faxed 2005 FD faxed sport faxed faxed t-sport ...(January 27th, 2019)
- 1010-0869 Arlen Ness Big Sucker (26.3% similar) Ready to be installed. Please look closely at the pictures. A picture is worth thousand words. On rare occasions I am the road picking up bikes so shipping may be delayed a day it is unnecessary because stand behind my service and products. If you are unsure whether or not it will fit yours just ask...(May 31st, 2017)
- 1010-0870 Arlen Ness Big Sucker (26.3% similar) This is the Arlen Ness big sucker performance air filter kit for harley davidson twin cam model's. On rare occasions I am the road picking up bikes so shipping may be delayed a day. Buying constitutes that you understand all of this and agree to shipping charges which are clearly stated. Please look...(May 31st, 2017)
- 1010-1203 Arlen Ness Inverted Series Air (48.8% similar) Let's all keep this worry and aggravation free. Buying constitutes that you understand all of this and agree to shipping charges which are clearly stated. Ready to be installed. These are not part bikes that I am leaving outside in the weather. It is unnecessary because I stand behind my service and...(February 9th, 2017)
- 1010-1215 Arlen Ness Inverted Series (43.7% similar) Buying constitutes that you understand all of this and agree to shipping charges which are clearly stated. If you are unsure whether or not it will fit yours just ask and I be happy to cross reference for. Note: kit includes all mounting hardware and gaskets. A picture is worth thousand words ready ...(May 1st, 2017)
- 1010-1461 Arlen Ness Big Sucker Performance (31.7% similar) Keep in mind you are buying on new and used parts rare occasions I am the road picking up bikes so shipping may be delayed a day. A picture is worth thousand words. Ready to be installed. Please look closely at the pictures. I ship USPS after you pay. If you are unsure whether or not it will fit ...(February 21st, 2017)
- 1010-1462 Arlen Ness Big Sucker (26.3% similar) Note: kit includes all mounting hardware and instructions but does not come with a cover. If you are unsure whether or not it will fit yours just ask and I be happy to cross reference for. Keep in mind you are buying on new and used parts I ship USPS after pay. Ready to be installed. Please look ...(June 7th, 2017)
- 1010-1463 Arlen Ness Big Sucker (26.3% similar) Note: kit includes all mounting hardware and instructions but does not come with a cover. Please look closely at the pictures. It is unnecessary because I stand behind my service and products. A picture is worth thousand words. I ship USPS after you pay. Keep in mind you are buying on new and used ...(June 6th, 2017)
