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Audi B9 A4 FWD 2.0T

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Audi B9 A4 FWD 2.0T Performance Air Filters

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Drop In Replacement Air Filter

ES#3988613 - E-0646 - Drop In Replacement Air Filter - High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime - K&N - Audi

High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
K&N - Corporate Logo
ES#:
3988613
Mfg#:
E-0646
In Stock
$83.99

This product was last offered at the strikethrough price on
01-20-2026

$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal High Flow Performance Air Filter - Dry (2.5" inlet)

ES#3697634 - 003675ECS03-02 - Universal High Flow Performance Air Filter - Dry (2.5" inlet) - High flow, reusable air filter. Used as a replacement filter to an ECS intake system or for your custom intake project. 4.5" Base OD / 6" Filter Height / 3.5" Top OD - ECS - Audi BMW Volkswagen

High flow, reusable air filter. Used as a replacement filter to an ECS intake system or for your custom intake project. 4.5" Base OD / 6" Filter Height / 3.5" Top OD affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3697634
Mfg#:
003675ECS03-02
In Stock
ON SALE! SAVE 25%
$58.99

This product was last offered at the strikethrough price on
06-13-2026

$44.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

SuperDuper Air Filter - 4" Inlet

ES#4500724 - 034-108-B025 - SuperDuper Air Filter - 4" Inlet - This high-flow, double-layered cotton filter features a 4in inlet. - 034Motorsport - Audi Volkswagen

This high-flow, double-layered cotton filter features a 4in inlet. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4500724
Mfg#:
034-108-B025
In Stock
ON SALE! SAVE 10%
$112.00

This product was last offered at the strikethrough price on
06-28-2026

$100.80 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMC Performance Air Filter - Priced Each

ES#4039346 - FB960/04 - BMC Performance Air Filter - Priced Each - High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime - BMC - Audi

High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with CYMC engine code only

Brand:
BMC - Corporate Logo
ES#:
4039346
Mfg#:
FB960/04
In Stock at Vendor
$86.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Air Filter - 5"F x 6-1/2"Bx 5-1/2"T (IM) x 5"H

ES#518600 - 24-91038 - Universal Air Filter - 5"F x 6-1/2"Bx 5-1/2"T (IM) x 5"H - AFE - Audi BMW Volkswagen Mercedes Benz MINI Porsche

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
518600
Mfg#:
24-91038
Back Ordered
Auto Notify
ON SALE! SAVE 37%
$88.99

This product was last offered at the strikethrough price on
01-28-2026

$55.80 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Drop In Replacement Air Filter

ES#4423854 - E-0647 - Drop In Replacement Air Filter - High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime - K&N - Audi

High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with engine codes DBPA

Brand:
K&N - Corporate Logo
ES#:
4423854
Mfg#:
E-0647
In Stock at Vendor
$104.99 USD
Free Shipping

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