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Audi B9 S5 Quattro 3.0T

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Audi B9 S5 Quattro 3.0T Performance Exhaust Parts

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Cat-Back Exhaust System - Non-Resonated With Valves

2.50" stainless steel with quad GT-100 polished tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493660
Mfg#:
SSXAU685
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$3506.99

This product was last offered at the strikethrough price on
10-26-2026

$3155.75 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Valves

2.50" stainless steel with quad GT-100 burnt titanium tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493582
Mfg#:
SSXAU682
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$4651.99

This product was last offered at the strikethrough price on
10-26-2026

$4186.16 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Valves

2.50" stainless steel with quad GT-100 polished tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499452
Mfg#:
SSXAU706
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$3752.99

This product was last offered at the strikethrough price on
10-26-2026

$3377.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Valves

2.50" stainless steel with quad GT-100 titanium tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493649
Mfg#:
SSXAU681
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$4193.99

This product was last offered at the strikethrough price on
10-26-2026

$3774.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated With Valves

2.50" stainless steel with quad GT100 burnt titanium tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493659
Mfg#:
SSXAU688
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$4405.99

This product was last offered at the strikethrough price on
10-26-2026

$3964.67 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated With Valves

2.50" stainless steel with quad GT-100 titanium tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493662
Mfg#:
SSXAU687
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$3947.99

This product was last offered at the strikethrough price on
10-26-2026

$3552.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated With Valves

2.50" stainless steel with quad GT-100 titanium tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499458
Mfg#:
SSXAU712
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$3947.99

This product was last offered at the strikethrough price on
10-26-2026

$3552.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated With Valves

2.50" stainless steel with quad Cerakote black velvet oval tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493652
Mfg#:
SSXAU690
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$3990.99

This product was last offered at the strikethrough price on
10-26-2026

$3591.03 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Exhaust Valves

2.50" stainless steel with quad polished oval tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493651
Mfg#:
SSXAU691
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$3987.99

This product was last offered at the strikethrough price on
10-26-2026

$3589.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Exhaust Valves

2.50" stainless steel with quad JET-100 carbon tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493650
Mfg#:
SSXAU683
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$4120.99

This product was last offered at the strikethrough price on
10-26-2026

$3708.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Valves

2.50" stainless steel with quad GT-100 burnt titanium tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499448
Mfg#:
SSXAU709
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$4651.99

This product was last offered at the strikethrough price on
10-26-2026

$4186.16 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Exhaust Valves

2.50" stainless steel with quad Cerakote black velvet oval tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493574
Mfg#:
SSXAU692
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$4236.99

This product was last offered at the strikethrough price on
10-26-2026

$3812.52 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Valves

2.50" stainless steel with quad Cerakote black velvet oval tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499440
Mfg#:
SSXAU716
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$4236.99

This product was last offered at the strikethrough price on
10-26-2026

$3812.52 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated With Valves

2.50" stainless steel with quad GT-100 polished tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493583
Mfg#:
SSXAU679
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$3752.99

This product was last offered at the strikethrough price on
10-26-2026

$3377.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated With Valves

2.50" stainless steel with quad polished oval tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493664
Mfg#:
SSXAU689
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$3741.99

This product was last offered at the strikethrough price on
10-26-2026

$3367.61 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated With Valves

2.50" stainless steel with quad JET-100 carbon tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499459
Mfg#:
SSXAU710
Ships on Nov 19, 2026
ON SALE! SAVE 10%
$3874.99

This product was last offered at the strikethrough price on
10-26-2026

$3487.02 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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.

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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