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Audi A4 Performance Exhaust Parts

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Cat-Back Exhaust System - Resonated

ES#2827275 - SSXAU089 - Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual 100mm polished tips Fits 5 speed manual only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827275
Mfg#:
SSXAU089
Ships on Nov 30, 2026
$1875.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827276 - SSXAU090 - Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual 100mm polished tips Fits 6 speed manual only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827276
Mfg#:
SSXAU090
Ships on Nov 30, 2026
$1875.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust - Resonated

ES#2827253 - SSXAU034 - Cat-Back Exhaust - Resonated - 2.5" stainless steel and 90mm tips - Milltek Sport - Audi

2.5" stainless steel and 90mm tips For 6 speed manual transmission Avant models only,

Brand:
Milltek Sport - Corporate Logo
ES#:
2827253
Mfg#:
SSXAU034
Ships on Nov 30, 2026
$1856.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827252 - SSXAU033 - Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual 90mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual 90mm polished tips Fits 5 speed manual only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827252
Mfg#:
SSXAU033
Ships on Nov 30, 2026
$1856.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Catalytic Converter Install Kit

ES#2576283 - 8K0253115AKT2 - Catalytic Converter Install Kit - Contains all of the hardware you need to install new catalytic converters on your Audi - Assembled By ECS - Audi

Contains all of the hardware you need to install new catalytic converters on your Audi 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
2576283
Mfg#:
8K0253115AKT2
In Stock
$100.99 USD
Free Shipping
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 on Nov 30, 2026
$1837.99

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

$1837.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Cat-Back Exhaust System - Sport

ES#2613544 - 15519 - Performance Cat-Back Exhaust System - Sport - Mandrel bent 3" 409 Stainless steel construction with dual tip, single exit polished tips - Magnaflow - Audi

Mandrel bent 3" 409 Stainless steel construction with dual tip, single exit polished tips

Brand:
Magnaflow - Corporate Logo
ES#:
2613544
Mfg#:
15519
Ships in 2 Business Days
$1823.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

MACH Force-Xp Axle-Back Exhaust System

ES#4500329 - 49-36445 - MACH Force-Xp Axle-Back Exhaust System - This system produces a mild sound unleashing all available horsepower and torque. - AFE - Audi

This system produces a mild sound unleashing all available horsepower and torque.

Brand:
AFE - Corporate Logo
ES#:
4500329
Mfg#:
49-36445
Back Ordered
20% off MSRP

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

$1138.99

This product was last offered at the strikethrough price on
05-27-2026

$911.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Stud - Priced Each

ES#467178 - N0445203 - Exhaust Stud - Priced Each - Install new hardware with your new parts. M10X28 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M10X28

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467178
Mfg#:
N0445203
In Stock
$2.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Milltek Cat-Back Exhaust System - Non-Resonated

Fits with factory exhaust outlets in bumper - no tips are included. For vehicles from the 2021 model year only.

Brand:
Milltek Sport - Corporate Logo
ES#:
5375825
Mfg#:
SSXAU1112
Ships on Nov 30, 2026
$1789.99 USD

Cat-Back Exhaust System

ES#2848045 - CTS-EXH-CB-0011 - Cat-Back Exhaust System - 2.5" stainless steel with dual 3" polished stainless tips - CTS - Audi

2.5" stainless steel with dual 3" polished stainless tips Manual transmission only

Brand:
CTS - Corporate Logo
ES#:
2848045
Mfg#:
CTS-EXH-CB-0011
Ships in 8 Business Days
ON SALE! SAVE 15%
$1049.99

This product was last offered at the strikethrough price on
09-29-2026

$892.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Catalytic Converter Installation Kit

ES#2575495 - 8K0253115KT2 - Catalytic Converter Installation Kit - Contains all of the hardware you need to install a new catalytic converter - Assembled By ECS - Audi

Contains all of the hardware you need to install a new catalytic converter 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2575495
Mfg#:
8K0253115KT2
In Stock
$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#4164713 - B6S4RESONATED - Cat-Back Exhaust System - Resonated - 2.25" stainless steel with your choice of tip style - Milltek Sport - Audi

2.25" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4164713
Mfg#:
B6S4RESONATED
Ships on Dec 16, 2026
Starting at $1685.99 USD
Customize
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.

Let us help you find the parts that fit your Audi

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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