Air Intake Filters & Replacement Filter Elements
If you're building a custom intake or need a replacement filter for yours, STM carries a huge selection of air filters from AMSOIL, COBB, HKS, K&N, Vibrant and our STM replacement filters. Filters are not vehicle-specific.
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STM Universal 4.5" Inlet STM High Flow Air Filter
$43.00
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STM Universal 4" Inlet STM High Flow Air Filter
$44.00
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2.25 Inch Inlet Vibrant Performance Classic Air Filter 10920
$42.50
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2.5 Inch Inlet Vibrant Performance Classic Air Filter 10921
$42.50
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2.75 Inch Inlet Vibrant Performance Classic Air Filter 10922
$42.50
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3 Inch Inlet Vibrant Performance "Classic" Air Filters
from $42.50
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3.5 Inch Vibrant Performance Classic Air Filter 10924
$42.50
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4 Inch Inlet Vibrant Performance Classic Air Filters
from $42.50
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4.5 Inch Inlet Vibrant Performance Classic Air Filter 10926
$42.50
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5 Inch Inlet Short Vibrant Performance Classic Air Filter 10932
$51.95
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6 Inch Bellmouth Inlet Vibrant Performance "Classic" Air Filter 10960
$51.95
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7 Inch Bellmouth Inlet Vibrant Performance "Classic" Air Filter 10961
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Vibrant Open Funnel Air Filters
$23.95
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3 Inch Inlet K&N Universal Cone Air Filters
from $35.99
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3.156 Inch Inlet K&N Universal Cone Air Filter RC-9110
$61.99
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HKS Replacement Filter Element (150mm Red) (70001-AK031)
$18.70
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3.5 Inch Inlet K&N Universal Cone Air Filters
from $34.99
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4 Inch Inlet K&N Universal Cone Air Filters
from $35.99
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HKS Replacement Filter Element (150mm Green) (70001-AK021)
$18.70
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4.5 Inch Inlet K&N Universal Cone Air Filter RU-4260
$48.99
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HKS Replacement Filter Element (200mm Red) (70001-AK032)
$22.10
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6 Inch Inlet K&N Universal Cone Air Filters
from $51.99
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COBB SF Replacement Air Filter for R35 GTR
$75.00
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HKS Replacement Filter Element (200mm Green) (70001-AK022)
$22.10
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K&N Universal 5" Air Filter (RU-2800)
$50.99
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K&N Air Filter Velocity Stack Flange (21512-1)
$25.99
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Injen 2G DSM MAF Adapter & Air Filter (IS1890F)
$136.70
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Injen Supernano-Web Air Filter 3in ID (X-1049-BB)
$64.77
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Injen Supernano-Web Air Filter 3in ID (X-1014-BB)
$63.14
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Injen Supernano-Web Air Filter 3.5in ID (X-1015-BB)
$63.14
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Injen Supernano-Web Air Filter 3in ID (X-1017-BB)
$63.14
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Injen Supernano-Web Air Filter 4.5in ID (X-1018-BB)
$63.14
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Injen Supernano-Web Air Filter 3.5in ID (X-1021-BB)
$70.96
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Injen Supernano-Web Air Filter 4in ID (X-1026-BB)
$68.25
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Injen Supernano-Web Air Filter 4in ID (X-1128-BB)
$70.95
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Injen Supernano-Web Air Filter 9in Oval ID (X-1131-BB)
$66.95
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Injen Supernano-Web Air Filter 5in ID (X-1045-BB)
$68.22
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Injen Supernano-Web Air Filter 3.25in ID (X-1059-BB)
$67.58
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Injen Supernano-Web Air Filter 4in ID (X-1070-BB)
$64.87
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Injen Supernano-Web Air Filter 3in ID (X-1081-BB)
$64.42
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Injen Supernano-Web Air Filter 5in ID (X-1093-BB)
$79.92
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Injen Supernano-Web Air Filter 3.5in ID (X-1097-BB)
$72.51
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Injen Hydroshield
from $22.41
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*Open Box* AMS0lL Air Filter 4in ID (EaAU4178)
$72.35
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*Open Box* AMS0lL Air Filter 6in ID (EaAU6075)
$69.00
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*Open Box* AMS0lL Air Filter 3.5in ID (EaAU3555)
$63.55
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aFe Power Magnum FLOW Pro Dry S 3.5" Air Filter (21-35008)
$68.39
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aFe Power Magnum FLOW Pro 5R 3.5" Air Filter (24-35008)
$68.39
