S&S Cycle Air Cleaner Kits — Harley-Davidson

S&S Cycle Stealth air cleaner kit for Harley-Davidson with carbon fiber cover, engineered to increase airflow by 38 percent through a radiused inlet and unique S&S stinger design. The high-strength synthetic polymer backplate reduces heat transfer to intake air for more efficient combustion and measurable power gains.

Features

• Carbon fiber cover — lightweight and corrosion resistant
• 38 percent increase in airflow
• High-strength synthetic polymer backplate with superior thermal stability
• Washable filter element
• 50-state legal and CARB EO# D-355-21 exempt
• Easy installation without modifications
• Pre-filters available separately

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 170-0525B
• Category: Air Intake Systems / Air Intake Components
• Weight: 2.8 lb

Fitment

Fits Harley-Davidson models with compatible intake manifolds. High-flow filter kit (part number 170-0130) is available as an upgrade option.

Frequently Asked Questions

How much power gain will I see with this air cleaner?

Power gains depend on engine size and other modifications. The 38-percent airflow increase typically adds 3–5 hp on stock or mildly modified engines.

Is this legal in all 50 states?

Yes. It is 50-state legal and exempt from CARB emissions tampering regulations under EO# D-355-21.

Can I upgrade to the high-flow filter later?

Yes. The high-flow (1-inch taller) filter kit is available separately as part number 170-0130 and fits this backplate.

Does the filter need cleaning or replacement?

The filter element is washable and reusable. Clean it periodically depending on riding conditions. Pre-filters are available to extend filter life.

Will this fit my specific Harley model?

This kit fits Harley-Davidson models with standard intake manifolds. Verify your year and model before ordering to ensure compatibility.