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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 - Resonated With Valves

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

Brand:
Milltek Sport - Corporate Logo
ES#:
3493581
Mfg#:
SSXAU680
Ships in 5 Business Days
ON SALE! SAVE 10%
$3752.99

This product was last offered at the strikethrough price on
08-29-2026

$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 burnt titanium tips Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493582
Mfg#:
SSXAU682
Ships in 5 Business Days
ON SALE! SAVE 10%
$4651.99

This product was last offered at the strikethrough price on
08-29-2026

$4186.16 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 polished tips Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493660
Mfg#:
SSXAU685
Ships in 5 Business Days
ON SALE! SAVE 10%
$3506.99

This product was last offered at the strikethrough price on
08-29-2026

$3155.75 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 Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499460
Mfg#:
SSXAU714
Ships in 5 Business Days
ON SALE! SAVE 10%
$3741.99

This product was last offered at the strikethrough price on
08-29-2026

$3367.61 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 Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499452
Mfg#:
SSXAU706
Ships in 5 Business Days
ON SALE! SAVE 10%
$3752.99

This product was last offered at the strikethrough price on
08-29-2026

$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 Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493649
Mfg#:
SSXAU681
Ships in 5 Business Days
ON SALE! SAVE 10%
$4193.99

This product was last offered at the strikethrough price on
08-29-2026

$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 Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493659
Mfg#:
SSXAU688
Ships in 5 Business Days
ON SALE! SAVE 10%
$4405.99

This product was last offered at the strikethrough price on
08-29-2026

$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 Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493662
Mfg#:
SSXAU687
Ships in 5 Business Days
ON SALE! SAVE 10%
$3947.99

This product was last offered at the strikethrough price on
08-29-2026

$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 Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499458
Mfg#:
SSXAU712
Ships in 5 Business Days
ON SALE! SAVE 10%
$3947.99

This product was last offered at the strikethrough price on
08-29-2026

$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 Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493652
Mfg#:
SSXAU690
Ships in 5 Business Days
ON SALE! SAVE 10%
$3990.99

This product was last offered at the strikethrough price on
08-29-2026

$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 JET-100 carbon tips Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493650
Mfg#:
SSXAU683
Ships in 5 Business Days
ON SALE! SAVE 10%
$4120.99

This product was last offered at the strikethrough price on
08-29-2026

$3708.51 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 Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493651
Mfg#:
SSXAU691
Ships in 5 Business Days
ON SALE! SAVE 10%
$3987.99

This product was last offered at the strikethrough price on
08-29-2026

$3589.10 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 Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499448
Mfg#:
SSXAU709
Ships in 5 Business Days
ON SALE! SAVE 10%
$4651.99

This product was last offered at the strikethrough price on
08-29-2026

$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 Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493574
Mfg#:
SSXAU692
Ships in 5 Business Days
ON SALE! SAVE 10%
$4236.99

This product was last offered at the strikethrough price on
08-29-2026

$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 Fits models with factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3499440
Mfg#:
SSXAU716
Ships in 5 Business Days
ON SALE! SAVE 10%
$4236.99

This product was last offered at the strikethrough price on
08-29-2026

$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 Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493583
Mfg#:
SSXAU679
Ships in 5 Business Days
ON SALE! SAVE 10%
$3752.99

This product was last offered at the strikethrough price on
08-29-2026

$3377.24 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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