1. Motorcycle/Scooter Air Filters Deals
  2. sku: 8468176215047771
  3. BFO 6YNGO4

BFO 6YNGO4 Kit Performance Air Filter 2004-UP

fits model: Sportster. make: Harley, Davidson.

6yngo4 Bfo Custom Air Filter Kit For Harley Davidson Sportster Xl 2004-up Performance

( Brand: Bfo ), ( Manufacturer Part Number: 6YNGO4 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Features: Easy Installation ), ( Finish: Polished ), ( Fitment Type: Direct Replacement ), ( Items Included: Screws, Seal ), ( Manufacturer Warranty: 1 Year ), ( Material: Aluminum ), ( Mounting Style: Bolt-on ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Oe/oem Part Number: Air Cleaner Intake Filter System, For Harley Xl Sportster 2004-up ), ( Type: Air Cleaner Intake Filter System ), ( Universal Fitment: No )

Review BFO Custom Air Filter Kit For Harley Davidson Xl 2004 Up Performance fits SPORTSTER

Introducing the BFO 6YGO4 Air Filter Kit, an exceptional upgrade for Harley-Davidson Sportster XL models from 2004 and later. Designed with performance in mind, this air filter kit is perfect for riders seeking improved engine response and enhanced filtration.

The BFO 6YGO4 Air Filter Kit comes with a high-performance cone air filter, specifically engineered to increase airflow and deliver more power to your Sportster XL engine. The cone shape allows for a larger filtering area compared to stock filters, ensuring that more air is being drawn in for optimal combustion.

The air filter element itself is made from a pleated cotton gauze material, which offers superior filtration capabilities. The cotton gauze is precise and tightly woven, trapping even the smallest contaminants while allowing clean air to pass through. This results in better engine protection and increased engine life.

Installing the BFO 6YGO4 Air Filter Kit is a straightforward process. It includes all necessary hardware, making it a true plug-and-play solution. The kit also comes with easy-to-follow installation instructions to ensure a hassle-free experience.

Upgrading to the BFO 6YGO4 Air Filter Kit not only provides performance benefits but also adds a stylish touch to your Harley-Davidson Sportster XL. The cone air filter sits proudly on display within the airbox, giving your motorcycle a unique and distinctive appearance.

In summary, the BFO 6YGO4 Air Filter Kit is an excellent investment for Harley-Davidson Sportster XL riders looking to boost performance, enhance filtration, and add a touch of style to their motorcycle. With its high-quality materials, easy installation, and noticeable power gains, this air filter kit is a must-have for any Sportster XL enthusiast.

Buying a BFO 6YGO4 Air Filter Kit for Harley-Davidson Sportster XL (2004-Up): A Performance Perspective

Introduction:

The BFO 6YGO4 Air Filter Kit is a popular aftermarket upgrade for the Harley-Davidson Sportster XL models produced from 2004 and later. This air filter kit offers enhanced performance, better filtration, and improved engine response. In this analysis, we'll discuss the pros and cons of investing in this air filter kit for your Sportster XL.

Pros:

1. Increased Power and Torque: The BFO 6YGO4 Air Filter Kit is designed to provide improved airflow to the engine, which can lead to increased power and torque. This results in better acceleration and overall performance.

2. Improved Engine Response: The improved airflow also leads to quicker throttle response, making the bike more responsive and fun to ride.

3. Better Filtration: The high-performance air filter offers better filtration than the stock filter, ensuring cleaner air enters the engine. This can lead to longer engine life and improved fuel efficiency.

4. Easy Installation: The air filter kit is relatively easy to install, with most users reporting they were able to complete the installation in under an hour.

Cons:

1. Cost: The BFO 6YGO4 Air Filter Kit is more expensive than the stock filter. While the performance benefits may be worth the investment for some riders, others may prefer to save the money.

2. Maintenance: The high-performance air filter requires more frequent maintenance compared to the stock filter. This means that riders will need to clean or replace the filter more often to maintain optimal performance.

3. Potential for Increased Noise: Some riders have reported that the BFO 6YGO4 Air Filter Kit can produce a slightly louder exhaust note. This may be a concern for those who prefer a quieter ride or live in areas with strict noise regulations.

Conclusion:

The BFO 6YGO4 Air Filter Kit offers numerous benefits for Harley-Davidson Sportster XL riders, including increased power and torque, improved engine response, better filtration, and easy installation. However, it also comes with drawbacks such as a higher cost, increased maintenance requirements, and potential for increased noise. Ultimately, the decision to purchase this air filter kit comes down to personal preferences and priorities. If you value performance and are willing to invest in regular maintenance, the BFO 6YGO4 Air Filter Kit could be an excellent addition to your Sportster XL. On the other hand, if you prefer a quieter, lower-maintenance ride, you may want to consider sticking with the stock filter.

Recommendation:

Based on the information presented, it is recommended that riders who prioritize performance and are willing to invest in regular maintenance consider purchasing the BFO 6YGO4 Air Filter Kit for their Harley-Davidson Sportster XL. Those who prefer a quieter, lower-maintenance ride may want to consider sticking with the stock filter. Ultimately, the decision is a personal one and depends on each rider's specific needs and preferences.

Details:

Best Costumer Service. Fast Shipping. A replacement inverted air filter is also provided. Includes all mounting hardware and spacers.

offers a minimum one year, unlimited mileage warranty on most of parts sold, some are otherwise noted longer manufacturer Brand new and of excellent quality. Forged bi-metal back panel with rounded entry and hidden breather hardware. Its a proven, high-performance bolt-on component that can dramatically improve the appearance and performance of your machine.

One PC Air Filter with Accessories, Showing as the picture. Reusable high-flow air filter. The forged air cleaner housing has built-in velocity stacking that both improves performance and enhances appearance. For Harley XL Sportster 2004 -up.

The top is inverted and the sides are pleated to increase air flow. This air filters provide the perfect combination of performance and design for your V-twin engine. Factory Warranty. Type: Air Cleaner Intake Filter System, condition: Brand New, Fitment Direct Replacement, Material: Billet Aluminum, Color: Red.

>>you might also like. It begins from the date purchased. Air Cleaner 1, Oil Tube 2, Breather Standoff 2, Washer 1, Bolt 2, Screw 3.

specifications scoofilters:

  • for models: Sportster
  • for makes: Harley, Davidson
  • brand: Bfo
  • mpn: 6yngo4
  • california prop 65 warning: California Prop 65 Warning
  • features: Easy Installation
  • finish: Polished
  • fitment type: Direct Replacement
  • items included: Screws, Seal
  • manufacturer warranty: 1 Year
  • material: Aluminum
  • mounting style: Bolt-on
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part
  • oe/oem part number: Air Cleaner Intake Filter System, For Harley Xl Sportster 2004-up
  • type: Air Cleaner Intake Filter System
  • universal fitment: No

seller scoofilters:

  • # reviews: 19536
  • city: Elk Grove Village, Illinois
  • rating: 98.6%

payments scoofilters:

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

returns scoofilters:

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

offer scoofilters:

  • quantity: 10
  • best offers: True
  • sold: 0
  • started: January 3, 2026
  • availability: In Stock
  • options: Ship-to-home

shipping scoofilters:

  • service: FedEx Ground / FedEx Home Delivery
  • type: Fixed
  • transit: 4-7 Days
  • carrier: FedEx
  • class: Standard
  • cost: $0.00

general scoofilters:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Air Filters
for models: sportster, for makes: harley, davidson, california prop 65 warning: california prop 65 warning, features: easy installation, finish: polished, fitment type: direct replacement, items included: screws, seal, manufacturer warranty: 1 year, mounting style: bolt-on, note: no instruction included, notice: this is aftermarket replcement part, oe/oem part number: air cleaner intake filter system, for harley xl sportster 2004-up, type: air cleaner intake filter system, universal fitment: no,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery > air filters, material: aluminum, sku: 8468176215047771,

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