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🏍️ Ride louder, ride stronger — the ultimate Harley airflow upgrade!
The K&N Air Intake System RK-3952 is a high-performance upgrade for Harley Davidson Touring and Softail models (2008-2017). Featuring a washable, reusable high-flow cotton filter housed in a durable cast aluminum black matte casing, it boosts horsepower and throttle response while delivering an aggressive engine sound. Designed for easy installation in under 90 minutes, this street-legal system (except in CA) combines cutting-edge airflow technology with iconic Harley styling to elevate both performance and presence.





| ASIN | B07BHB1W8M |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #96,510 in Automotive ( See Top 100 in Automotive ) #138 in Motorcycle Air Filters |
| Brand Name | K&N |
| Customer Reviews | 4.7 4.7 out of 5 stars (210) |
| Fit Type | Vehicle Specific Fit |
| Global Trade Identification Number | 00024844367013, 02484436701300 |
| Included Components | 1 Air Filter |
| Item Dimensions L x W x H | 30.5L x 24.1W x 9.5H centimeters |
| Item Type Name | Intake System (Harley Davidson) |
| Item Weight | 3.88 Pounds |
| Manufacturer | K&N Engineering |
| Manufacturer Part Number | RK-3952 |
| Model Number | RK-3952 |
| OEM Equivalent Part Number | 77-2557KP |
| Product Grade | Tuning |
| Shape | Oval |
| UPC | 024844367013 |
| Unit Count | 1 Count |
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