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Audi S4 Performance Exhaust Parts

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B8 S4/S5/Q5 3.0T Downpipes With Integrated X-Pipe

ES#4376068 - 012616la01KT - B8 S4/S5/Q5 3.0T Downpipes With Integrated X-Pipe - Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. - ECS - Audi

Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4376068
Mfg#:
012616LA01KT
In Stock
ON SALE! SAVE 25%
$599.99

This product was last offered at the strikethrough price on
05-02-2026

$449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Track Edition Exhaust System - B8/B8.5 S4 3.0T

ES#4726503 - AWEB8S4TK - AWE Track Edition Exhaust System - B8/B8.5 S4 3.0T - Equipped with the same precision-engineering as its Touring Edition counterpart, minus the 180 Technology resonators in the rear. - AWE - Audi

Equipped with the same precision-engineering as its Touring Edition counterpart, minus the 180 Technology® resonators in the rear. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4726503
Mfg#:
AWEB8S4TK
In Stock
Starting at $1345.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4/S5 Sportback 3.0T Valved Exhaust System

ES#4369839 - 026018ECS - Audi B9 S4/S5 Sportback 3.0T Valved Exhaust System - ECS evolutionary design and manufacturing, blending with raw emotion, desire and passion, creating a truly unique driving experience - ECS - Audi

ECS evolutionary design and manufacturing, blending with raw emotion, desire and passion, creating a truly unique driving experience affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4369839
Mfg#:
026018ECS
In Stock
ON SALE!
Starting at $1427.58 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Touring Edition Exhaust System - B8/B8.5 S4 3.0T

ES#4726504 - AWEB8S4TR - AWE Touring Edition Exhaust System - B8/B8.5 S4 3.0T - Remarkably civil while idling/part throttle cruising, but unleashed at full throttle produces what some have called a war-cry wail. Features AWE's proprietary 180 Technology resonators. - AWE - Audi

Remarkably civil while idling/part throttle cruising, but unleashed at full throttle produces what some have called a “war-cry wail.” Features AWE's proprietary 180 Technology® resonators. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4726504
Mfg#:
AWEB8S4TR
In Stock
Starting at $1745.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Resonated Downpipes - Audi B8/B8.5 3.0T

ES#4043933 - 3215-11030 - AWE Resonated Downpipes - Audi B8/B8.5 3.0T - Features resonators larger than the stock units in order to produce a more mellow sound volume. - AWE - Audi

Features resonators larger than the stock units in order to produce a more mellow sound volume. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4043933
Mfg#:
3215-11030
In Stock
15% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$1229.99

This product was last offered at the strikethrough price on
06-03-2026

$1045.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo B9 S4/S5 High Flow Cat

ES#4043052 - CTS-EXH-TP-0009C - CTS Turbo B9 S4/S5 High Flow Cat - CTS Turbo high flow cat is made to maximize exhaust flow for highest power gains - Do not compromise performance and sound with factory parts - Unleash your B9 S4/S5 3.0T Potential! - CTS - Audi

CTS Turbo high flow cat is made to maximize exhaust flow for highest power gains - Do not compromise performance and sound with factory parts - Unleash your B9 S4/S5 3.0T Potential! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4043052
Mfg#:
CTS-EXH-TP-0009C
Back Ordered
Auto Notify
$699.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8 S4/S5/Q5 3.0T Downpipes With Resonator Deletes

ES#4714616 - 012616LA01-01KT - B8 S4/S5/Q5 3.0T Downpipes With Resonator Deletes - Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. - ECS - Audi

Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4714616
Mfg#:
012616LA01-01KT
In Stock
ON SALE!
$549.99

This product was last offered at the strikethrough price on
05-02-2026

$499.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Res-X Front Resonator Delete

ES#4845334 - 034-105-7060 - Res-X Front Resonator Delete - Unleash a throaty growl under hard acceleration! - 034Motorsport - Audi

Unleash a throaty growl under hard acceleration! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4845334
Mfg#:
034-105-7060
In Stock
$303.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8/B8.5 S4 3.0T Center X-Pipe Kit

ES#3194900 - 003029ecs01KT - Audi B8/B8.5 S4 3.0T Center X-Pipe Kit - Eliminate the center resonator on your OE system for a more aggressive exhaust note - ECS - Audi

Eliminate the center resonator on your OE system for a more aggressive exhaust note affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3194900
Mfg#:
003029ECS01KT
In Stock
ON SALE! SAVE 30%
$449.99

This product was last offered at the strikethrough price on
05-02-2026

$314.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 S4/S5 Downpipe & Resonator Delete Kit

ES#4715650 - 016752la02KT - B9 S4/S5 Downpipe & Resonator Delete Kit - No cutting required, easy-to-install downpipes with resonator deletes for your factory cat back exhaust. - ECS - Audi

No cutting required, easy-to-install downpipes with resonator deletes for your factory cat back exhaust. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4715650
Mfg#:
016752LA02KT
In Stock
ON SALE! SAVE 15%
$469.99

This product was last offered at the strikethrough price on
05-02-2026

$399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Performance Cast Downpipe

ES#4473979 - IEEXCK3 - IE Performance Cast Downpipe - Features a TIG-welded 304 stainless and investment cast body and offers gains up to 45HP & 41TQ - Integrated Engineering - Audi

Features a TIG-welded 304 stainless and investment cast body and offers gains up to 45HP & 41TQ affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4473979
Mfg#:
IEEXCK3
In Stock
$1099.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Build Your Own Audi B8/8.5 S4 3.0T Valved Cat Back Exhaust System - Stainless

ES#4488022 - 008553ECS01 - Build Your Own Audi B8/8.5 S4 3.0T Valved Cat Back Exhaust System - Stainless - Experience your driving passion with our ECS Valved Exhaust System and control your sound with our valved muffler design - ECS - Audi

Experience your driving passion with our ECS Valved Exhaust System and control your sound with our valved muffler design affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
10X Entries For Our Spin To Win Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4488022
Mfg#:
008553ECS01
In Stock
ON SALE!
Starting at $1305.07 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8 3.0T Free-Flow "Shorty" Exhaust Headers

ES#4783226 - 053829LA01-02 - B8 3.0T Free-Flow "Shorty" Exhaust Headers - Experience an impressive 48% increase in flow with our ceramic-coated, tubular stainless steel headers! - ECS - Audi
ECS Tuning recommends this product.

Experience an impressive 48% increase in flow with our ceramic-coated, tubular stainless steel headers! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
10X Entries For Our Spin To Win Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4783226
Mfg#:
053829LA01-02
In Stock
ON SALE! SAVE 22%
$1019.99

This product was last offered at the strikethrough price on
05-02-2026

$799.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 S4 3.0T Center X-Pipe

ES#3521607 - 024365ecs01KT - B9 S4 3.0T Center X-Pipe - Sound great and save weight! Eliminate the center resonator on your OE system for a more aggressive exhaust note - ECS - Audi

Sound great and save weight! Eliminate the center resonator on your OE system for a more aggressive exhaust note affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3521607
Mfg#:
024365ECS01KT
In Stock
ON SALE! SAVE 25%
$429.99

This product was last offered at the strikethrough price on
05-02-2026

$322.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Cat-Back Exhaust System - B9/B9.5 S4

ES#4709360 - IEEXCK5 - IE Cat-Back Exhaust System - B9/B9.5 S4 - Delivers a truly aggressive exhaust note without any annoying drone or rasp - Integrated Engineering - Audi

Delivers a truly aggressive exhaust note without any annoying drone or rasp affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4709360
Mfg#:
IEEXCK5
In Stock
$1687.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Cat-Back Exhaust System - B9 S4/S5

ES#4901469 - CBK0012 - APR Cat-Back Exhaust System - B9 S4/S5 - Features TIG welded brushed T304 stainless steel construction and offers gains of 10 AWHP and 12 AWFT-LBS of torque - APR - Audi

Features TIG welded brushed T304 stainless steel construction and offers gains of 10 AWHP and 12 AWFT-LBS of torque Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4901469
Mfg#:
CBK0012
Ships in 5 Business Days
35% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$2049.99

This product was last offered at the strikethrough price on
04-22-2026

$1332.99 USD
Free Shipping

More About Performance Exhaust Parts

Performance exhaust systems increase flows to improve throttle response and add power. Designed to reduce back pressure, our large selection of performance exhaust parts and performance exhaust systems is made from premium materials like stainless steel. Many are TIG welded and polished to make them as attractive as they are functional.

Let us help you find the parts that fit your Audi

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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