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Audi S4 Performance Exhaust Parts

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ARMYTRIX Sport Cat-Pipe

Sport Cat-Pipe with 200 CPSI Catalytic Converter - Increase power, reduce weight, and improve sound!

Brand:
Armytrix - Corporate Logo
ES#:
4164584
Mfg#:
AU94S-CD
Ships on Nov 10, 2026
$2618.00 USD
Free Shipping

Exhaust - Downpipes With X-Pipe

Reduce unwanted drone and rasp

Brand:
JH Motorsports - Corporate Logo
ES#:
4812415
Mfg#:
JHM-B8DPXIBS30T
Ships in 10 Business Days
$1449.99 USD

ValveSonic Upgrade Kit

Upgrade your Milltek system to Valve Sonic Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2973066
Mfg#:
MSAUVS01KT
Ships on Nov 10, 2026
$2518.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.5" Resonated Half Exhaust System - Ceramic Tips

2.5" half-exhaust built to last with 304 stainless steel and quad ceramic daytona tips

Brand:
Scorpion - Corporate Logo
ES#:
3969344
Mfg#:
SAU044C
Ships in 2 Business Days
$1862.99 USD
Free Shipping

Supersprint Cat-Back Exhaust System - Resonated

Stainless steel non-resonated cat-back exhaust system with quad round, polished tips - Includes downpipes with high flow secondary cats

Brand:
Supersprint - Corporate Logo
ES#:
4017779
Mfg#:
777532KT
Ships on Jan 25, 2027
$11742.00 USD
Free Shipping

B5 S4 Valved Cat Back Exhaust & Street Shield Aluminum Skid Plate Kit

ES#4751086 - 041750LA01EBKT - B5 S4 Valved Cat Back Exhaust & Street Shield Aluminum Skid Plate Kit - Enhance the sound of your vehicle and keep it safe with a Street Shield Aluminum Skid Plate Kit - Enthusiast Bundles - Audi

Enhance the sound of your vehicle and keep it safe with a Street Shield Aluminum Skid Plate Kit Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751086
Mfg#:
041750LA01EBKT
In Stock
ON SALE! SAVE 13%
$1675.99

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

$1449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B5 S4 Non-Valved Exhaust System & Street Shield Aluminum Skid Plate Kit

ES#4876621 - 041750LAEBKT - B5 S4 Non-Valved Exhaust System & Street Shield Aluminum Skid Plate Kit - Enhance your vehicle's sound and protect vital engine componentry! - Enthusiast Bundles - Audi

Enhance your vehicle's sound and protect vital engine componentry! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876621
Mfg#:
041750LAEBKT
In Stock
ON SALE! SAVE 45%
$1448.97

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

$796.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Universal Single Exhaust Tip - 3.5" - Forged Carbon Fiber

ES#4708458 - VTTPSLVE3035FC - Universal Single Exhaust Tip - 3.5" - Forged Carbon Fiber - 3.0" Inlet - 3.5" Outlet - Forged Carbon Sleeve - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

3.0" Inlet - 3.5" Outlet - Forged Carbon Sleeve

Brand:
Valvetronic Designs - Corporate Logo
ES#:
4708458
Mfg#:
VTTPSLVE3035FC
Ships in 5 Business Days
$327.99

This product was last offered at the strikethrough price on
09-24-2026

$83.99 USD
Free Shipping

Exhaust Mid pipe Muffler

Mufflered midpipe that connects the downpipe to the rear mufflers

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3250337
Mfg#:
8W0253409G
Ships in 10 Business Days
9% off MSRP

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

$1172.99

This product was last offered at the strikethrough price on
08-31-2026

$1071.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System

ES#2613791 - 16769 - Cat-Back Exhaust System - 2.5" stainless steel with dual 3.5" polished stainless tips - Magnaflow - Audi

2.5" stainless steel with dual 3.5" polished stainless tips Avant models only

Brand:
Magnaflow - Corporate Logo
ES#:
2613791
Mfg#:
16769
Back Ordered
$1196.00 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.

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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