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Audi A4 Performance Cat-Back Exhausts

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Audi B8/B8.5 A4 2.0T Non-Resonated Valved Cat-Back Exhaust System - Single Exit Dual 3.5" Tips - Chrome

ES#4020151 - 003353ecs01KT2 - Audi B8/B8.5 A4 2.0T Non-Resonated Valved Cat-Back Exhaust System - Single Exit Dual 3.5" Tips - Chrome - ECS evolutionary design and manufacturing, blending with raw emotion, desire and passion, creating a truly unique driving experience - ECS - Audi
ECS Tuning recommends this product.

ECS evolutionary design and manufacturing, blending with raw emotion, desire and passion, creating a truly unique driving experience 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4020151
Mfg#:
003353ECS01KT2
In Stock
ON SALE! SAVE 10%
$1172.99

This product was last offered at the strikethrough price on
06-13-2026

$1055.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Exhaust Resonator Delete Section

ES#4848336 - 008553ECS12-01 - ECS Tuning Exhaust Resonator Delete Section - Change out your ECS Tuning B8/8.5 S4/S5 or B9 A4/S4 Valved Exhaust from resonated to non-resonated! - ECS - Audi

Change out your ECS Tuning B8/8.5 S4/S5 or B9 A4/S4 Valved Exhaust from resonated to non-resonated! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4848336
Mfg#:
008553ECS12-01
In Stock
ON SALE! SAVE 10%
$91.99

This product was last offered at the strikethrough price on
06-13-2026

$82.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B7 A4 2.0T Cat-Back Exhaust System - Resonated

ES#2827262 - SSXAU049 - B7 A4 2.0T Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual Jet 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual Jet 100mm polished tips Manual transmission only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827262
Mfg#:
SSXAU049
Ships in 5 Business Days
$1837.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System

ES#3175519 - 252561M - Cat-Back Exhaust System - 2.5" T-304 Stainless Steel exhaust system with dual tip Magnaflow muffler - Techtonics Tuning - Audi

2.5" T-304 Stainless Steel exhaust system with dual tip Magnaflow muffler For use with factory downpipe

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175519
Mfg#:
252561M
Ships in 7 Business Days
$687.99 USD

Cat-Back Exhaust System - Dual Exit Single Tips

ES#2848070 - CTSEXHCB0013 - Cat-Back Exhaust System - Dual Exit Single Tips - 2.5" stainless steel with dual 3" polished stainless tips - CTS - Audi

2.5" stainless steel with dual 3" polished stainless tips

Brand:
CTS - Corporate Logo
ES#:
2848070
Mfg#:
CTSEXHCB0013
Ships in 7 Business Days
$1099.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B7 A4 2.0T Cat-Back Exhaust System - Resonated

ES#2917843 - SSXAU517 - B7 A4 2.0T Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual GT 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual GT 100mm polished tips Automatic transmission only

Brand:
Milltek Sport - Corporate Logo
ES#:
2917843
Mfg#:
SSXAU517
Ships in 5 Business Days
$1606.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

2.76" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4159433
Mfg#:
B9A4RESONATED
Ships in 3 Business Days
Starting at $2411.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827376 - SSXAU249 - Cat-Back Exhaust System - Resonated - 2.76" stainless steel with quad GT100 polished tips - Milltek Sport - Audi

2.76" stainless steel with quad GT100 polished tips

Brand:
Milltek Sport - Corporate Logo
ES#:
2827376
Mfg#:
SSXAU249
Ships in 3 Business Days
$2310.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust - Semi Resonated

ES#4159848 - B9A4SEMIRESONATE - Cat-Back Exhaust - Semi Resonated - 2.76" stainless steel with your choice of tip style - Milltek Sport - Audi

2.76" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4159848
Mfg#:
B9A4SEMIRESONATE
Ships in 3 Business Days
Starting at $2213.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport & Sound Pack Cat-Back Exhaust System

ES#3508263 - 764920 - Sport & Sound Pack Cat-Back Exhaust System - Stainless steel non-resonated cat-back exhaust system with dual round, polished tips - Supersprint - Audi

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

Brand:
Supersprint - Corporate Logo
ES#:
3508263
Mfg#:
764920
Ships in 3 Business Days
$2170.99 USD
Free Shipping

Cat-Back Exhaust System

ES#3175521 - 252561TM - Cat-Back Exhaust System - 2.5" T-304 Stainless Steel exhaust system with dual tip Magnaflow muffler - Techtonics Tuning - Audi

2.5" T-304 Stainless Steel exhaust system with dual tip Magnaflow muffler

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175521
Mfg#:
252561TM
Ships in 8 Business Days
$687.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Touring Edition Exhaust System - Audi B9 A4 2.0T

ES#4727590 - AWEB9A4TR - AWE Touring Edition Exhaust System - Audi B9 A4 2.0T - Delivers a civil, smooth soundtrack throughout the range while providing an enhanced in-cabin driving experience in any Drive Select mode. Features AWE's proprietary 180 Technology resonators. - AWE - Audi

Delivers a civil, smooth soundtrack throughout the range while providing an enhanced in-cabin driving experience in any Drive Select mode. Features AWE's proprietary 180 Technology® resonators. For vehicles up through the 2018 model year only (Pre-Facelift)

Brand:
AWE - Corporate Logo
ES#:
4727590
Mfg#:
AWEB9A4TR
Ships on Aug 7, 2026
Starting at $2045.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System

ES#4004062 - CTS-EXH-CB-0019 - Cat-Back Exhaust System - 3.0" tig welded T304 stainless steel with dual 4.0" polished stainless tips - CTS - Audi

3.0" tig welded T304 stainless steel with dual 4.0" polished stainless tips For vehicles up through the 2018 model year only (Pre-Facelift)

Brand:
CTS - Corporate Logo
ES#:
4004062
Mfg#:
CTS-EXH-CB-0019
Ships in 7 Business Days
ON SALE! SAVE 15%
$1199.99

This product was last offered at the strikethrough price on
07-10-2026

$1019.99 USD
Free Shipping
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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