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Audi Performance Cat-Back Exhausts

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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 6 Business Days
$3507.99

This product was last offered at the strikethrough price on
08-17-2026

$3507.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated With Valves

ES#3493658 - SSXAU686 - Cat-Back Exhaust System - Non-Resonated With Valves - 2.50" stainless steel with quad GT100 cerakote black tips - Milltek Sport - Audi

2.50" stainless steel with quad GT100 cerakote black tips Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3493658
Mfg#:
SSXAU686
Ships in 6 Business Days
$3506.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4 2.0T Valved Exhaust System - Cat Back

ES#4488077 - 021275ECS01 - Audi B9 A4 2.0T Valved Exhaust System - Cat Back - Max gains of +16 WHP and +17 WTQ on our B9 A4 equipped with a Luft-Technik intake, ECS Intercooler/charge pipes, and a stage 1 tune! - ECS - Audi

Max gains of +16 WHP and +17 WTQ on our B9 A4 equipped with a Luft-Technik intake, ECS Intercooler/charge pipes, and a stage 1 tune! 10X Entries Into Our F80 M3 Sweepstakes
For vehicles up through the 2018 model year only (Pre-Facelift)

Brand:
ECS - Corporate Logo
ES#:
4488077
Mfg#:
021275ECS01
Ships on Nov 13, 2026
ON SALE!
Starting at $1156.67 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Catback Exhaust System - Non-Resonated (Without Center Muffler)

ES#3709325 - CBK0009 - APR Catback Exhaust System - Non-Resonated (Without Center Muffler) - Dual 2.78" T304 stainless to quad 2.5" mandrel-bent brushed tubing - The APR Catback Exhaust System personalizes your vehicles looks, sound and performance! - APR - Audi

Dual 2.78" T304 stainless to quad 2.5" mandrel-bent brushed tubing - The APR Catback Exhaust System personalizes your vehicle’s looks, sound and performance! Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
3709325
Mfg#:
CBK0009
Back Ordered
11% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$3881.99

This product was last offered at the strikethrough price on
09-16-2026

$3449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Catback Exhaust System - Without Center Resonator

ES#3979040 - CBK0010 - APR Catback Exhaust System - Without Center Resonator - T304 stainless-steel with Dual 2.75" to quad 2.5" mandrel-bent brushed tubing - Smooth your exhaust note to a deep growl, without adding restrictions! - APR - Audi

T304 stainless-steel with Dual 2.75" to quad 2.5" mandrel-bent brushed tubing - Smooth your exhaust note to a deep growl, without adding restrictions! Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
3979040
Mfg#:
CBK0010
Back Ordered
11% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$3881.99

This product was last offered at the strikethrough price on
09-16-2026

$3449.99 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 10 Business Days
$687.99 USD

Cat-Back Exhaust System - Resonated

ES#2827420 - SSXAU296 - Cat-Back Exhaust System - Resonated - 2.25" stainless steel with dual 100mm 'GT100' style polished exhaust tips - Milltek Sport - Audi

2.25" stainless steel with dual 100mm 'GT100' style polished exhaust tips

Brand:
Milltek Sport - Corporate Logo
ES#:
2827420
Mfg#:
SSXAU296
Ships on Oct 20, 2026
$1685.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated

ES#3699038 - SSXAU794 - Cat-Back Exhaust System - Non-Resonated - 3.00" Stainless Steel non-resonated system with dual Burnt Titanium oval tips (170x107mm) - Milltek Sport - Audi

3.00" Stainless Steel non-resonated system with dual Burnt Titanium oval tips (170x107mm)

Brand:
Milltek Sport - Corporate Logo
ES#:
3699038
Mfg#:
SSXAU794
Ships in 6 Business Days
$3350.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Valvesonic Non-Resonated

ES#2827482 - SSXAU365 - Cat-Back Exhaust System - Valvesonic Non-Resonated - 2.75" stainless steel and retains stock exhaust tips - Milltek Sport - Audi

2.75" stainless steel and retains stock exhaust tips Does not include the valve controllers. Stock ones are reused.

Brand:
Milltek Sport - Corporate Logo
ES#:
2827482
Mfg#:
SSXAU365
Ships in 6 Business Days
$3333.99

This product was last offered at the strikethrough price on
08-17-2026

$3333.05 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Non Resonated Cat Back System - Black Tips

An entire system from the cat back for a full sound overhaul!

Brand:
Milltek Sport - Corporate Logo
ES#:
4508198
Mfg#:
SSXAU962
Ships in 6 Business Days
$3309.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

3.00" Stainless Steel resonated system with dual polished oval tips (170x107mm)

Brand:
Milltek Sport - Corporate Logo
ES#:
3617509
Mfg#:
SSXAU729
Ships in 6 Business Days
$3306.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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 8 Business Days
$1099.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Cat-Back Exhausts

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