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| 2002-2007 WRX & STi Drop-In Air Filters for the Factory Airbox |
| Perrin - Blitz - K&N |
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The Perrin drop-in air filter for the 02-07 WRX & STi uses a 2-stage foam filtration element to improve airflow in your stock airbox; providing improved power and airflow while removing harmful particles from the incoming air. Using a special oil coating, the foam filter catches dirt particles while allowing air to pass unimpeded through the high-flow foam. This filter can be cleaned and re-oiled using the Perrin cleaning kit, sold separately.
Shipping costs are calculated upon checkout. |
| FITMENT: 2002-07 WRX & 2004-07 STi |
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| Perrin Drop-In Air Filter |
paPSP-INT-100 | $40 | $37 | 24 in stock | |
 | Blitz's LM Series drop-in air filters are designed to reduce intake restriction and provide maximum filtration in your WRX Or STi's factory airbox. Unlike conventional drop-in air filters made of paper or foam elements that require oil to maintain filtering capacity, the Blitz LM air filter is made of cotton and does not require oiling.
Shipping costs are calculated upon checkout. |
| FITMENT: 2002-07 WRX & 2004-07 STi |
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| Blitz Drop-In Air Filter |
blitz59515 | $43 | $36 | 11 in stock | |
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K&N’s WRX & STi replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. K&N filters are custom designed to fit into your existing factory air box for simple, fast installation. K&N stock replacement air filters for street vehicles are covered by a Million-Mile Limited Warranty. K&N Filters use oil to provide filtration, and can be washed and recharged using the K&N cleaning kit (sold separately).
Shipping costs are calculated upon checkout. |
| FITMENT: 2002-07 WRX & 2004-07 STi |
| Description |
Part #: |
MSRP: |
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| K&N Drop-In Air Filter |
kn33-2232 | $52 | $42 | 12 in stock | |
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