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

IE Harsh Climate 5" Oiled Filter & Sock Kit

ES#4465497 - IEINUU2 - IE Harsh Climate 5" Oiled Filter & Sock Kit - Direct replacement filter for all popular IE air intake kits with a 5" velocity stack. - Integrated Engineering - Audi Volkswagen

Direct replacement filter for all popular IE air intake kits with a 5" velocity stack. 5X Entries For Our 25th Anniversary Sweepstakes!
For vehicles that already have an IE intake

Brand:
Integrated Engineering - Corporate Logo
ES#:
4465497
Mfg#:
IEINUU2
In Stock
$76.99 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 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

Performance Intake System

ES#4835388 - B930TINT - Performance Intake System - maximize your airflow with more power, torque, and incredible induction sounds! - ARM Motorsports - Audi

maximize your airflow with more power, torque, and incredible induction sounds!

Brand:
ARM Motorsports - Corporate Logo
ES#:
4835388
Mfg#:
B930TINT
In Stock
$227.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal performance air filter

ES#1876583 - E-2021 - Universal performance air filter - Bolt on better performance and fuel efficiency. - K&N - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Bolt on better performance and fuel efficiency.

Brand:
K&N - Corporate Logo
ES#:
1876583
Mfg#:
E-2021
In Stock
$68.99 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

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 2 Business Days
$171.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Foam Air Filter

ES#4830102 - PX2011 - Performance Foam Air Filter - More air flow means more power! Direct replacement with long service life - Pipercross - Audi

More air flow means more power! Direct replacement with long service life

Brand:
Pipercross - Corporate Logo
ES#:
4830102
Mfg#:
PX2011
Ships on Aug 12, 2026
$139.99 USD
Free Shipping
on orders $49 and up

Universal Air Filter

ES#251196 - E-9282 - Universal Air Filter - ID=80mm/3.15", 7" long & 7" outer diameter - K&N - Audi BMW Volkswagen Mercedes Benz MINI Porsche

ID=80mm/3.15", 7" long & 7" outer diameter

Brand:
K&N - Corporate Logo
ES#:
251196
Mfg#:
E-9282
In Stock
$68.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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