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💨 Unlock your Subaru’s hidden horsepower—filter like a pro, drive like a champion!
The K&N 33-2304 High Performance Replacement Air Filter is a vehicle-specific upgrade for Subaru models (2003-2017) that delivers up to 50% more airflow, improving acceleration and engine responsiveness. Featuring a washable, reusable design with a 10-year/million mile warranty, it offers long-term savings and eco-friendly benefits. Engineered and tested on NASCAR tracks, this filter ensures world-class engine protection and easy installation, making it the ultimate performance upgrade for Subaru enthusiasts.





| ASIN | B000COC0GQ |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #30,947 in Automotive ( See Top 100 in Automotive ) #372 in Car Engine Air Filters |
| Brand Name | K&N |
| Country of Publication | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,193) |
| EU Spare Part Availability Duration | 10 Years |
| Fit Type | Vehicle Specific Fit |
| Global Trade Identification Number | 00024844111562 |
| Included Components | K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with 2003-2019 Subaru (Forester, Legacy, Outback, Impreza, WRX, Levorg, Crosstrek, Tribeca) 33-2304 |
| Item Dimensions L x W x H | 11.5L x 10.4W x 1.7H centimeters |
| Item Type Name | K&N 85-9541 Gasket |
| Item Weight | 0.4 Kilograms |
| Manufacturer | RDX Racedesign |
| Manufacturer Part Number | 33-2304 |
| Manufacturer Warranty Description | No Warranty |
| Model Number | 33-2304 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | 16546AA090, 16546AA10, 16546AA10A, 16546AA120, 16546AA12A |
| Product Grade | Replacement Part |
| Shape | Rectangular |
| UPC | 024844111562 |
| Unit Count | 1 Count |
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