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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T 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

Brand:
K&N - Corporate Logo
ES#:
3988613
Mfg#:
E-0646
Ships in 4 Business Days
$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 10X Entries Into Our F80 M3 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. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4500724
Mfg#:
034-108-B025
Ships in 2 Business Days
ON SALE! SAVE 10%
$112.00

This product was last offered at the strikethrough price on
08-17-2026

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

SuperDuper Air Filter, 5" Inlet

ES#4696150 - 034-108-B029 - SuperDuper Air Filter, 5" Inlet - A replacement for 034's popular S34 Intake System - 034Motorsport - Audi

A replacement for 034's popular S34 Intake System 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4696150
Mfg#:
034-108-B029
In Stock
$114.00 USD
Free Shipping

Racingline High-Flow Air Filter

ES#3570408 - VWR1141S4 - Racingline High-Flow Air Filter - Set your 3.0 TFSI turbocharged engine free by allowing it to breathe better and operate more efficiently! - Racingline - Audi

Set your 3.0 TFSI turbocharged engine free by allowing it to breathe better and operate more efficiently!

Brand:
Racingline - Corporate Logo
ES#:
3570408
Mfg#:
VWR1141S4
Ships in 5 Business Days
ON SALE! SAVE 10%
$171.99

This product was last offered at the strikethrough price on
08-29-2026

$154.70 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

Brand:
AFE - Corporate Logo
ES#:
518600
Mfg#:
24-91038
In Stock
ON SALE! SAVE 20%
$70.00

This product was last offered at the strikethrough price on
05-27-2026

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

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