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Audi S4 Performance Cat-Back Exhausts

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Cat-Back Exhaust System - Non-Resonated

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 Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827394
Mfg#:
SSXAU268
Ships on Nov 9, 2026
$2844.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated

ES#2827370 - SSXAU240 - Cat-Back Exhaust System - Non-Resonated - 2.37" stainless steel with dual black Cerakote oval tips - Milltek Sport - Audi

2.37" stainless steel with dual black Cerakote oval tips Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827370
Mfg#:
SSXAU240
Ships on Nov 9, 2026
$2771.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport & Sound Cat-Back Exhaust System - Resonated

ES#3514254 - 764440 - Sport & Sound Cat-Back Exhaust System - Resonated - Stainless steel resonated cat-back exhaust system with dual round, polished tips - Supersprint - Audi

Stainless steel resonated cat-back exhaust system with dual round, polished tips

Brand:
Supersprint - Corporate Logo
ES#:
3514254
Mfg#:
764440
In Stock
Limited Qty Sale
$3055.99

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

$2734.99 USD
Free Shipping

Audi B9 S4/S5 Sportback 3.0T Valved Exhaust System & Luft-Technik Intake System

ES#4751050 - 026018ECSEBKT - Audi B9 S4/S5 Sportback 3.0T Valved Exhaust System & Luft-Technik Intake System - Improve the sound and performance of your vehicle with a valved catback & Luft-Technik Intake System - Enthusiast Bundles - Audi

Improve the sound and performance of your vehicle with a valved catback & Luft-Technik Intake System Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751050
Mfg#:
026018ECSEBKT
Ships on Nov 16, 2026
ON SALE! SAVE 23%
$3293.99

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

$2549.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8/8.5 S4 3.0T Valved Cat Back Exhaust & Kohlefaser Luft-Technik Intake System

ES#4751087 - 008553ECS03EB2KT - Audi B8/8.5 S4 3.0T Valved Cat Back Exhaust & Kohlefaser Luft-Technik Intake System - Enhance the sound and performance of your S4 with an ECS Tuning cat-back and a Kohlefaser Luft-Technik Intake System - Enthusiast Bundles - Audi

Enhance the sound and performance of your S4 with an ECS Tuning cat-back and a Kohlefaser Luft-Technik Intake System Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751087
Mfg#:
008553ECS03EB2KT
Ships on May 17, 2027
ON SALE! SAVE 28%
$3351.75

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

$2399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CatBack Exhaust System - Resonated

ES#3107695 - 762503kt - CatBack Exhaust System - Resonated - Stainless steel system with X-pipe - Supersprint - Audi

Stainless steel system with X-pipe

Brand:
Supersprint - Corporate Logo
ES#:
3107695
Mfg#:
762503KT
Ships on Jan 22, 2027
$2178.99 USD
Free Shipping

Cat-Back Exhaust System - Resonated

ES#2827260 - SSXAU046 - Cat-Back Exhaust System - Resonated - 2.25" stainless steel with quad 76.2mm polished tips - Milltek Sport - Audi

2.25" stainless steel with quad 76.2mm polished tips

Brand:
Milltek Sport - Corporate Logo
ES#:
2827260
Mfg#:
SSXAU046
Ships on Nov 9, 2026
$1776.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.5" Resonated Half Exhaust System

ES#3969343 - SAU044 - 2.5" Resonated Half Exhaust System - 2.5" half-exhaust built to last with 304 stainless steel and quad polished daytona tips - Scorpion - Audi

2.5" half-exhaust built to last with 304 stainless steel and quad polished daytona tips

Brand:
Scorpion - Corporate Logo
ES#:
3969343
Mfg#:
SAU044
Ships in 2 Business Days
$1741.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#4164713 - B6S4RESONATED - Cat-Back Exhaust System - Resonated - 2.25" stainless steel with your choice of tip style - Milltek Sport - Audi

2.25" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4164713
Mfg#:
B6S4RESONATED
Ships on Nov 27, 2026
Starting at $1685.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System

ES#1892708 - 16586 - Cat-Back Exhaust System - 2.5" stainless steel with dual 4" polished stainless tips - Magnaflow - Audi

2.5" stainless steel with dual 4" polished stainless tips

Brand:
Magnaflow - Corporate Logo
ES#:
1892708
Mfg#:
16586
Back Ordered
$1646.00 USD
This product is lifetime replacement eligible Lifetime Replacement
Scratch and Dent Item

Milltek Sport Cat-Back Exhaust System - Resonated With Exhaust Valves *Scratch And Dent*

ES#4730281 - SSXAU695sd - Milltek Sport Cat-Back Exhaust System - Resonated With Exhaust Valves *Scratch And Dent* - ***Please see photos and description prior to ordering, all sales final.*** 2.50" stainless steel with quad GT-100 Cerakote black tips - Scratch & Dent - Audi

***Please see photos and description prior to ordering, all sales final.*** 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!

Brand:
Scratch & Dent - Corporate Logo
ES#:
4730281
Mfg#:
SSXAU695SD
In Stock
ON SALE! SAVE 55%
$3283.00

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

$1481.05 USD

Performance Cat-Back Exhaust System

ES#3107254 - 14902 - Performance Cat-Back Exhaust System - 3" stainless steel with dual 4.63" polished stainless tips - Borla - Audi

3" stainless steel with dual 4.63" polished stainless tips

Brand:
Borla - Corporate Logo
ES#:
3107254
Mfg#:
14902
In Stock at Vendor
$1289.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust Installation Kit

ES#2598287 - 357253141AKT5 - Cat-Back Exhaust Installation Kit - Includes both clamps to connect your cat-back exhaust system - HJS - Audi

Includes both clamps to connect your cat-back exhaust system

Brand:
HJS - Corporate Logo
ES#:
2598287
Mfg#:
357253141AKT5
In Stock
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cabriolet Brace Spacer Kit for Performance Exhaust

Allows you to make the room you need to fit most performance exhaust systems on the market. For cabriolet models only

Brand:
JH Motorsports - Corporate Logo
ES#:
4046053
Mfg#:
CABSPACERKIT
Ships in 10 Business Days
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Cat-Back Exhausts

Give your exhaust a much-needed increase in volume with our selection of choice performance cat-back exhaust systems.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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