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Audi S4 Performance Cat-Back Exhausts

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Cat-Back Exhaust System - Resonated With Exhaust Valves

ES#3240918 - SSXAU641 - Cat-Back Exhaust System - Resonated With Exhaust Valves - 2.50" stainless steel with quad GT-100 Cerakote black tips - Milltek Sport - Audi

2.50" stainless steel with quad GT-100 Cerakote black tips Fits models without factory rear sports differential
For vehicles without a sport differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3240918
Mfg#:
SSXAU641
Ships in 3 Business Days
$3752.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust - Resonated

2.50" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4164540
Mfg#:
B9RESONATED
Ships in 3 Business Days
Starting at $3463.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827484 - SSXAU367 - Cat-Back Exhaust System - Resonated - 2.37" stainless steel with quad 100mm black Cerakote tips - Milltek Sport - Audi

2.37" stainless steel with quad 100mm black Cerakote tips From the 2013 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827484
Mfg#:
SSXAU367
Ships in 3 Business Days
$3526.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 S4/S5 Cat-Back Exhaust System - Non-Resonated (Louder)

ES#3466846 - SSXAU701 - B9 S4/S5 Cat-Back Exhaust System - Non-Resonated (Louder) - 2.50" stainless steel with quad GT-100 cerakote black tips - Milltek Sport - Audi

2.50" stainless steel with quad GT-100 cerakote black tips Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3466846
Mfg#:
SSXAU701
Ships in 3 Business Days
$3507.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

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 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

Cat-Back Exhaust System - Non-Resonated Race Version

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 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

Cat-Back Exhaust System - Resonated

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 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

Cat-Back Exhaust System - Non-Resonated

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

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

Performance Cat-Back Exhaust System

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

Brand:
Borla - Corporate Logo
ES#:
3107059
Mfg#:
140403
Ships in 10 Business Days
$3130.99 USD
Free Shipping

Cat-Back Exhaust System - Resonated

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 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

Cat-Back Exhaust System - Non-Resonated Race Version

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 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

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 in 3 Business Days
$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 in 3 Business Days
$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
In Stock
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

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 Oct 23, 2026
$1940.99 USD
Free Shipping

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