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Audi S4 Performance Exhaust Parts

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For Manual Transmissions - Comes with cats and 2.5" cat back affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports  - Corporate Logo
ES#:
5376133
Mfg#:
JHM-B6S-LTHM
Ships in 10 Business Days
$3386.99 USD
Free Shipping
on orders $49 and up
ES#3420821 - SSXAU673 - 2.5" High-Flow Downpipe  - Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems. - Milltek Sport - Audi

Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
3420821
Mfg#:
SSXAU673
Ships in 3 Business Days
$3374.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2827483 - SSXAU366 - Cat-Back Exhaust System - Resonated - 2.37" stainless steel with quad 100mm polished tips - Milltek Sport - Audi

2.37" stainless steel with quad 100mm polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2013 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827483
Mfg#:
SSXAU366
Ships in 3 Business Days
$3272.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4505214 - JHM-B8DPPDK - JHM High Flow Downpipe Kit - Catted Downpipes with or without X pipe and with or without Integrated Baffling! - JH Motorsports  - Audi

Catted Downpipes with or without X pipe and with or without Integrated Baffling! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports  - Corporate Logo
ES#:
4505214
Mfg#:
JHM-B8DPPDK
Ships in 10 Business Days
Starting at $0.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2827492 - SSXAU375 - Cat-Back Exhaust System - Non-Resonated Race Version - 2.37" stainless steel with quad 100mm black Cerakote tips - Milltek Sport - Audi

2.37" stainless steel with quad 100mm black Cerakote tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2013 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827492
Mfg#:
SSXAU375
Ships in 3 Business Days
$3192.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2827387 - SSXAU261 - Cat-Back Exhaust System - Resonated - 2.37" stainless steel with quad 80mm polished tips - Milltek Sport - Audi

2.37" stainless steel with quad 80mm polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827387
Mfg#:
SSXAU261
Ships in 3 Business Days
$3177.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2827261 - SSXAU048 - Cat-Back Exhaust System - Non-Resonated - 2.25" stainless steel with quad 76.2mm polished tips - Milltek Sport - Audi

2.25" stainless steel with quad 76.2mm polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
2827261
Mfg#:
SSXAU048
Ships in 1 Business Day
$1577.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3107059 - 140403 - Performance Cat-Back Exhaust System - 2.5" stainless steel with quad 3.5" polished stainless tips - Borla - Audi

2.5" stainless steel with quad 3.5" polished stainless tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Borla - Corporate Logo
ES#:
3107059
Mfg#:
140403
Ships on Jun 19, 2026
$3130.99 USD
Free Shipping
ES#4905571 - B930TDPC - Audi B9 3.0T S4 S5 Catted Downpipe - Increased Power and Torque, Massive 6.5" Design, Faster Turbo Spool, and Improved Exhaust Note - ARM Motorsports - Audi

Increased Power and Torque, Massive 6.5" Design, Faster Turbo Spool, and Improved Exhaust Note affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ARM Motorsports - Corporate Logo
ES#:
4905571
Mfg#:
B930TDPC
Ships on Jul 10, 2026
$779.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2827388 - SSXAU262 - Cat-Back Exhaust System - Resonated - 2.37" stainless steel with dual oval black Cerakote tips - Milltek Sport - Audi

2.37" stainless steel with dual oval black Cerakote tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827388
Mfg#:
SSXAU262
Ships in 3 Business Days
$3105.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3557460 - CTSEXHDP0017 - 2.5" Performance Downpipe Set - For substantial power gains, improved exhaust flow and a more throaty sound! - CTS - Audi

For substantial power gains, improved exhaust flow and a more throaty sound! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
3557460
Mfg#:
CTSEXHDP0017
Ships in 8 Business Days
$599.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2827493 - SSXAU376 - Cat-Back Exhaust System - Non-Resonated Race Version - 2.37" stainless steel with quad 100mm polished tips - Milltek Sport - Audi

2.37" stainless steel with quad 100mm polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2013 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827493
Mfg#:
SSXAU376
Ships in 3 Business Days
$2938.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4730281 - SSXAU695sd - Milltek Sport Cat-Back Exhaust System - Resonated With Exhaust Valves*Scratch And Dent* - 2.50" stainless steel with quad GT-100 Cerakote black tips - Scratch & Dent - Audi

2.50" stainless steel with quad GT-100 Cerakote black tips ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Scratch & Dent - Corporate Logo
ES#:
4730281
Mfg#:
SSXAU695SD
In Stock
ON SALE! SAVE 12%
$3283.00

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

$2889.04 USD
ES#2827394 - SSXAU268 - Cat-Back Exhaust System - Non-Resonated - 2.37" stainless steel with quad 80mm polished tips - Milltek Sport - Audi

2.37" stainless steel with quad 80mm polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827394
Mfg#:
SSXAU268
Ships in 3 Business Days
$2844.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

For Automatic Transmissions - Comes with cats and 2.5" cat back affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports  - Corporate Logo
ES#:
4759121
Mfg#:
JHM-B6S-LTH
Ships in 10 Business Days
$2799.99 USD
Free Shipping
on orders $49 and up

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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