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The K&N 33-2232 replacement air filter delivers high-flow performance for 2002-2007 Subaru Impreza WRX and STi models plus dozens of other Subaru vehicles from 1986-2007. Its layered oiled cotton media improves airflow captures dirt and adds horsepower while lasting the life of your vehicle. Drop it into your stock airbox for immediate gains backed by K&N lifetime limited warranty.
Key Features
- Engineered Power: Advanced filter media boosts horsepower acceleration and engine response.
- Reusable Design: Washable filter cuts costs up to $125 over 200000 miles versus disposable OEM filters and reduces landfill waste.
- Removes in minutes with basic tools direct OEM replacement.
- Precision engineered for exact OEM fit and maximum airflow.
- Four layers of oiled cotton gauze media provide high airflow and dirt-trapping efficiency washable for reuse.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 1998-1999 | Subaru | Forester | L, S |
| 1993-1997 | Subaru | Impreza | 2.5i, Brighton, L, LS, Outback, Outback Sport, RS, WRX, additional manufacturer-listed applications |
| 1999 | Subaru | Impreza | 2.5i, Brighton, L, LS, Outback, Outback Sport, RS, WRX, additional manufacturer-listed applications |
| 2002-2003 | Subaru | Impreza | 2.5i, Brighton, L, LS, Outback, Outback Sport, RS, WRX, additional manufacturer-listed applications |
| 2005-2007 | Subaru | Impreza | 2.5i, Brighton, L, LS, Outback, Outback Sport, RS, WRX, additional manufacturer-listed applications |
| 1990-2004 | Subaru | Legacy | Alpine Sport, Brighton, GT, GT Limited, L, L 30th Anniversary, L 35th Anniversary, L SE, additional manufacturer-listed applications |
| 1990-1994 | Subaru | Loyale | RS, RS Turbo, Turbo |
| 2001-2003 | Subaru | Outback | H6, L.L. Bean, VDC |
| 1986-1989 | Subaru | RX | Turbo |
| 1992-1997 | Subaru | SVX | L, LS, LSi, LSL |
Specifications
| Brand | K&N Engineering |
|---|---|
| Manufacturer Part Number | 33-2232 |
| Product Type | Air Filters - Drop In |
| Fitment Type | Vehicle Specific |
| Condition | New |
What's Included
One new K&N air filters - drop in identified by manufacturer part number 33-2232. Hardware, adapters, clamps, hoses, filters, and service supplies are included only when stated for this exact product.
About K&N Engineering
K&N develops reusable air filtration, intake, oil filtration, fuel filtration, and related performance products for vehicle-specific and dimensional applications.
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Frequently Asked Questions
How do I confirm K&N 33-2232 fits my vehicle?
Match the year, make, and model in the fitment table, then confirm the engine, factory housing, sensor layout, emissions notes, and any application restrictions stated for this exact part.
Is K&N 33-2232 washable and reusable?
Serviceability depends on the exact media used for this part number. Follow the K&N cleaning and oiling directions for this filter and never apply oil to media specified as dry.
What should be checked after installing K&N 33-2232?
Verify seals, clamps, fasteners, hoses, sensors, wiring, and surrounding clearance as applicable. Check for leaks or contact, then follow the manufacturer service and reinspection schedule.
Installation Instructions
- Removes in minutes with basic tools direct OEM replacement
- Compatible with factory airbox no modifications or hardware needed
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