K&N 05 WRX / 99-06 Impreza / 99-04 Legacy Drop In Air Filter

SKU: 33-2154 | UPC: 024844078391

K&N 05 WRX / 99-06 Impreza / 99-04 Legacy Drop In Air Filter

K&N 33-2154 is a washable reusable high-flow replacement air filter with layered oiled cotton media that improves airflow while capturing contaminants for more horsepower. This drop-in filter fits directly into factory air boxes on 1999-2006 Subaru Impreza models including 2005 WRX, 1999-2004 Legacy, plus Forester, Outback, and Baja variants. Engineered for long life it lasts the vehicle’s lifespan backed by K&N No-Hassle Lifetime Limited Warranty.

Key Features

• 4 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form a mesh that blocks and traps harmful contaminants from reaching the engine.
• Clean Once Every 5 Years: Needs cleaning every 75000 miles under normal highway driving or 5 years at 15000 miles per year average.
• Easy Installation: Pre-oiled and ready to drop into factory air box for quick performance gains with no modifications.
• Engineered Power: State-of-the-art media increases horsepower acceleration and overall engine performance.
• Reusable Saves Money: Washable design saves up to $125 over 200000 miles versus multiple disposable filters based on OE MSRP.

Product Notes

• Filter measures 9.5 in L x 7.5 in W x 1.625 in H weighs 0.85 lbs.
• Wash with K&N cleaning kit every 75000 miles do not use soap or harsh cleaners.
• Ships in protective box 10.25 x 7.75 x 1.75 inches.

Installation Notes

• Professional installation recommended.
• Remove factory filter drop in K&N 33-2154 no tools required in most cases.
• Compatible with OEM air box hardware no additional parts needed.

This Part Fits

Year	Make	Model	Submodel
1999-2004	Subaru	Impreza	RS
2002-2004	Subaru	Impreza	TS
1999-2001	Subaru	Impreza	L
1999-2006	Subaru	Impreza	WRX
1999-2000	Subaru	Legacy	Brighton
1996-2004	Subaru	Legacy	GT
1998	Subaru	Legacy	GT Limited
2000-2002	Subaru	Legacy	GT Limited
1999-2004	Subaru	Legacy	L
1999	Subaru	Legacy	L 30th Anniversary
2003	Subaru	Legacy	L SE
1999	Subaru	Legacy	Limited 30th Anniversary
1996-1997	Subaru	Legacy	LSi
1996-1999	Subaru	Legacy	Outback
1997	Subaru	Legacy	Outback Limited
1999	Subaru	Legacy	Outback Limited
1999	Subaru	Legacy	SUS 30th Anniversary
2000-2004	Subaru	Outback	Limited
2003	Subaru	Baja	Base
2003-2006	Subaru	Baja	Sport
1999-2002	Subaru	Forester	Base
1999-2002	Subaru	Forester	L
1999-2002	Subaru	Forester	S
2003-2004	Subaru	Forester	X
2003-2004	Subaru	Forester	XS

Why Choose K&N?

• Over 50 years designing high-flow air filters for automotive performance.
• Reusable filters cut replacement costs and landfill waste versus disposables.
• Precision engineering with oiled cotton gauze for airflow and filtration balance.

Frequently Asked Questions

• Q: Does this fit 2005 Subaru Impreza WRX?
  A: Yes K&N 33-2154 is direct drop-in replacement for 2005 WRX factory air box.
• Q: What material is used in this filter?
  A: Layered premium cotton gauze treated with oil and tacking agent for high airflow and dirt trapping.
• Q: What is the warranty coverage?
  A: No-Hassle Lifetime Limited Warranty covers defects in materials or workmanship limitations apply see K&N site.

Shipping & Handling

• Method: UPS Ground or USPS Priority
• Availability: In stock – ships same or next business day
• Packaging: Protective cardboard box 10.25 x 7.75 x 1.75 inches
• Weight: 0.85 lbs