S&S Cycle Stealth Air Cleaner Kit For Harley EFI
S&S Stealth: The Hidden Powerhouse for Modern EFI Harleys
The S&S Cycle Stealth Air Cleaner Kit represents the 2026 gold standard for riders who prioritize performance over flash. For the enthusiast who loves the original look of their Harley-Davidson but hates the restrictive nature of factory air boxes, the Stealth offers the perfect compromise. The heart of the system is the patented S&S “stinger” cone. Located within the filter, this cone is precisely shaped to direct air smoothly into the mouth of the EFI throttle body. By eliminating the air “tumbling” that occurs in standard flat-backed air cleaners, the Stealth ensures a laminar flow of cool, oxygen-rich air, resulting in the immediate throttle response and mid-range pulling power required for aggressive 2026 riding. Whether you are outfitting a 2026 Milwaukee-Eight or a Twin Cam EFI, the Stealth delivers the secure, industrial-strength utility that S&S Cycle has perfected over six decades.
Racing-Grade Engineering and “Bolt-On” Simplicity
What sets the S&S Stealth apart in the 2026 marketplace is its uncompromising commitment to air velocity. The kit features a massive high-flow filter that is both washable and reusable, ensuring your maintenance costs remain low through the 2026 season and beyond. The backing plate is precision-cast with a radiused inlet, mirroring the design of a high-performance velocity stack. To maintain a clean, professional aesthetic, S&S integrated their internal breather system directly into the plate, routing engine gases internally and eliminating the need for unsightly external hoses. This design not only improves engine breathing but also protects the unit from road grime. If you eventually decide you want a custom look, the Stealth is compatible with several S&S accessory covers, such as the Airstream or the Bobber style, giving you 2026 modular flexibility.
S&S Cycle Stealth EFI Technical Specifications
- Fitment: Harley-Davidson EFI Models (Milwaukee-Eight and Twin Cam).
- Intake Technology: Patented “Stinger” cone for reduced air turbulence.
- Filter Media: High-capacity, washable, and reusable pleated synthetic.
- Backing Plate: Precision-cast with radiused entry and internal breathing.
- Compatibility: Fits under most factory 1999-2026 air cleaner covers.
- Performance: Optimized for Stage 1-3 builds; significant increases in CFM.
- Origin: 100% Handcrafted and Tested in the USA.
Expert Installation & Performance Advice
As specialists in high-performance V-Twin components, we recommend the Stealth for its “plug-and-play” reliability. Pro Tip: Because this kit significantly increases airflow, your 2026 air-fuel ratio will change. To ensure your engine runs cool and efficiently, we highly recommend a Stage 1 ECU recalibration using a Dynojet Power Vision or Vance & Hines Fuelpak. Installation Note: When mounting the backing plate, ensure you use the included high-temp gaskets; apply a small amount of blue thread-locker to the cover screws to combat the natural vibration of the engine. Maintenance Note: To clean the filter, use a dedicated air filter cleaner and allow it to air dry completely before re-installing; never use compressed air, which can damage the fine media. Safety Note: Periodically check the mounting hardware during your 2026 service intervals to ensure the internal stinger cone remains rock-solid.
The Professional Standard for Discreet Performance
Choosing the S&S Cycle Stealth Air Cleaner means investing in unmatched engine longevity and induction efficiency. It offers a unique combination of modern racing geometry and a discreet silhouette that honors the factory lines of your motorcycle. For the rider who wants a high-output 2026 presence and a flawless engineering finish, the S&S Stealth is the unmatched leader. Bolt it on, hide the power, and ride the distance.
Features:
- Increased filter area, combined with an air horn like radiused inlet and unique S&S Cycle stinger cone to allow smoother faster air flow for more power
- This kit does not include an air cleaner cover
- For a little more style and a high performance look, S&S Cycle offers a number of good looking covers
- Kit includes back plate, filter element, top cover, hardware, and instructions
- Made in the USA
| Product Style | AmericanV-twin Item # | Catalog Number | Store Sku | MFR. Product # | Availability |
|---|---|---|---|---|---|
| Black | 14266 | 901-560 | 14838 | 170-0300B | In Stock: Ships within 24 hours |
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