K&N Replacement Air Filter — Subaru Impreza WRX/STI, Forester, Baja 2004-2008

SKU: KNN33-2075
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Sale price$54.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N High-Flow Replacement Air Filter for Subaru Models

Elevate your Subaru's performance with the K&N 33-2075 High-Flow Replacement Air Filter. Designed for a range of Subaru models including the Impreza WRX, WRX STI, Forester, and Baja from 2004 to 2008, this filter is engineered to optimize engine breathing. Utilizing K&N's signature layered, oiled cotton media, it provides exceptional filtration efficiency while allowing for maximum airflow, translating into tangible performance gains.

Key Benefits:

  • Enhanced Horsepower & Torque: Improved airflow leads to quicker throttle response and more power.
  • Superior Engine Protection: Effectively captures dust, dirt, and other contaminants, safeguarding your engine.
  • Washable and Reusable: A sustainable and economical choice, as the filter can be cleaned and re-oiled for continued use.
  • Durable Design: Built to last for the entire lifespan of your vehicle, offering long-term reliability.
  • Simple Installation: Direct-fit design ensures easy replacement of your stock air filter.
  • K&N Warranty: Backed by K&N's 10-Year/Million Mile Limited Warranty for your confidence.

The K&N 33-2075 air filter is the perfect upgrade for Subaru enthusiasts looking for a performance edge. Its high-flow characteristics help your engine perform at its best, whether on the street or the track. Easy to maintain and built to last, this filter offers a significant improvement over standard paper filters. Experience enhanced performance and protection for your Subaru by choosing the K&N 33-2075, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2006 Subaru Baja Turbo
2003-2005 Subaru Forester XS
2003-2008 Subaru Forester X
2005 Subaru Forester XS L.L. Bean Edition
2005 Subaru Forester XT Premium
2006-2008 Subaru Forester X L.L. Bean Edition
2006-2008 Subaru Forester XT Limited
2008 Subaru Forester Sports 2.5 X
2008 Subaru Forester Sports 2.5 XT
1999 Subaru Impreza RS
2004 Subaru Impreza WRX STI
2004-2005 Subaru Impreza WRX
2004 Subaru Outback H6 VDC

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N High-Flow Replacement Air Filter for Subaru Models

Elevate your Subaru's performance with the K&N 33-2075 High-Flow Replacement Air Filter. Designed for a range of Subaru models including the Impreza WRX, WRX STI, Forester, and Baja from 2004 to 2008, this filter is engineered to optimize engine breathing. Utilizing K&N's signature layered, oiled cotton media, it provides exceptional filtration efficiency while allowing for maximum airflow, translating into tangible performance gains.

Key Benefits:

  • Enhanced Horsepower & Torque: Improved airflow leads to quicker throttle response and more power.
  • Superior Engine Protection: Effectively captures dust, dirt, and other contaminants, safeguarding your engine.
  • Washable and Reusable: A sustainable and economical choice, as the filter can be cleaned and re-oiled for continued use.
  • Durable Design: Built to last for the entire lifespan of your vehicle, offering long-term reliability.
  • Simple Installation: Direct-fit design ensures easy replacement of your stock air filter.
  • K&N Warranty: Backed by K&N's 10-Year/Million Mile Limited Warranty for your confidence.

The K&N 33-2075 air filter is the perfect upgrade for Subaru enthusiasts looking for a performance edge. Its high-flow characteristics help your engine perform at its best, whether on the street or the track. Easy to maintain and built to last, this filter offers a significant improvement over standard paper filters. Experience enhanced performance and protection for your Subaru by choosing the K&N 33-2075, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2006 Subaru Baja Turbo
2003-2005 Subaru Forester XS
2003-2008 Subaru Forester X
2005 Subaru Forester XS L.L. Bean Edition
2005 Subaru Forester XT Premium
2006-2008 Subaru Forester X L.L. Bean Edition
2006-2008 Subaru Forester XT Limited
2008 Subaru Forester Sports 2.5 X
2008 Subaru Forester Sports 2.5 XT
1999 Subaru Impreza RS
2004 Subaru Impreza WRX STI
2004-2005 Subaru Impreza WRX
2004 Subaru Outback H6 VDC

Product Details

Product Description

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N High-Flow Replacement Air Filter for Subaru Models

Elevate your Subaru's performance with the K&N 33-2075 High-Flow Replacement Air Filter. Designed for a range of Subaru models including the Impreza WRX, WRX STI, Forester, and Baja from 2004 to 2008, this filter is engineered to optimize engine breathing. Utilizing K&N's signature layered, oiled cotton media, it provides exceptional filtration efficiency while allowing for maximum airflow, translating into tangible performance gains.

Key Benefits:

  • Enhanced Horsepower & Torque: Improved airflow leads to quicker throttle response and more power.
  • Superior Engine Protection: Effectively captures dust, dirt, and other contaminants, safeguarding your engine.
  • Washable and Reusable: A sustainable and economical choice, as the filter can be cleaned and re-oiled for continued use.
  • Durable Design: Built to last for the entire lifespan of your vehicle, offering long-term reliability.
  • Simple Installation: Direct-fit design ensures easy replacement of your stock air filter.
  • K&N Warranty: Backed by K&N's 10-Year/Million Mile Limited Warranty for your confidence.

The K&N 33-2075 air filter is the perfect upgrade for Subaru enthusiasts looking for a performance edge. Its high-flow characteristics help your engine perform at its best, whether on the street or the track. Easy to maintain and built to last, this filter offers a significant improvement over standard paper filters. Experience enhanced performance and protection for your Subaru by choosing the K&N 33-2075, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2006 Subaru Baja Turbo
2003-2005 Subaru Forester XS
2003-2008 Subaru Forester X
2005 Subaru Forester XS L.L. Bean Edition
2005 Subaru Forester XT Premium
2006-2008 Subaru Forester X L.L. Bean Edition
2006-2008 Subaru Forester XT Limited
2008 Subaru Forester Sports 2.5 X
2008 Subaru Forester Sports 2.5 XT
1999 Subaru Impreza RS
2004 Subaru Impreza WRX STI
2004-2005 Subaru Impreza WRX
2004 Subaru Outback H6 VDC

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