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Air Filters

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2004-2007 Subaru STI Air Filter
These are replacement filters for our ETS 2004-2007 Surbaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! (RE-0910)
$51.99
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2008-2014 Subaru STI Air Filter
These are replacement filters for our ETS 2008-2014 Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! (SP-3606)
$45.00
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2015+ Subaru STI Air Filter
These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter (SP-3606)
$45.00
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2015+ Subaru WRX Air Filter
These are replacement filters for our ETS 2015+ WRX Intake Kit. These K&N filters are designed specifically for our intake kits! (SP-3603)
$45.00
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Evolution 8/9 4" Turbo Kit Intake Air Filter
These are replacement filters for our ETS Evolution 8/9 4" Turbo Kit Intake. These K&N filters are designed specifically for our intake kits! (SP-3605)
$45.00
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Evolution 8/9 Speed Density Air Filter
These are replacement filters for our ETS Evolution 8/9 Speed Density Intake Kit. These K&N filters are designed specifically for our intake kits! (SP-3606)
$45.00
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Evolution 8/9 Stock MAF Air Filter
These are replacement filters for our ETS Evolution 8/9 Stock MAF Intake Kit. These K&N filters are designed specifically for our intake kits! (SP-3604)
$45.00
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Evolution X Air Filter
These are replacement filters for our ETS Evolution X Intake Kit. These K&N filters are designed specifically for our intake kits! (SP-3603)
$48.95
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Ford Focus Air Filter
These are replacement filters for our ETS Focus RS Intake Kit. These K&N filters are designed specifically for our intake kits! (SP-3717)
$45.00
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Ford Mustang EcoBoost Air Filter
These are replacement filters for our ETS Ford Mustang EcoBoost Intake Kit. These K&N filters are designed specifically for our intake kits! (SP-3606)
$45.00
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Lamborghini Huracan Air Filter
These are replacement filters for our ETS Lamborghini Huracan Intake Kit. These K&N filters are designed specifically for our intake kits! This is sold as a single quantity, please select "2" for a replacement of both filters. (SP-3605)
$45.00
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Nissan GTR Air Filter
These are replacement filters for our ETS Nissan GTR Intake Kit. These K&N filters are designed specifically for our intake kits! These filters are sold as single quantities, please select "2" in order to do a full replacement of both filters. (SP-3607)
$36.99
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