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Subaru (OEM) Panel Air Filter Element, '08-'18 WRX & STi & '09-'18 Forester
$24.95
Perrin Drop-In Panel Air Filter, 2008-2020 WRX & 2008-2017 STi
$60.30 $51.26
GrimmSpeed Dry-Con Drop-In Panel Air Filter, 2019-2021 STi
$59.00
GrimmSpeed Dry-Con Drop-In Panel Air Filter, '08-'21 WRX & '08-'18 STi
aFe Pro 5R Drop In Air Filter, 2008-2021 WRX & 2008-2021 STi
$84.00
aFe Pro DRY S Drop In Air Filter, 2008-2021 WRX & 2008-2021 STi
Subaru (OEM) Panel Air Filter Element, '18 STi Type RA & '19-'21 STi
Perrin Panel Filter, 2018-2021 STi
$64.60 $54.91
HKS Super Mega Flow Replacement Filter Element (Dry, 3 Layer)
$22.10
Roger Clark Motorsport High Flow Panel Air Filter, 2008-2021 WRX & STi
$59.94
Mishimoto Drop In Air Filter, 2015-2018 STi
$64.95
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