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Audi A4 Exhaust Parts & Accessories

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Performance Stainless 2.5" Downpipe

ES#3175269 - 251126 - Performance Stainless 2.5" Downpipe - High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust - Techtonics Tuning - Audi

High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust Fits manual transmission models only - To be used with 2.5" aftermarket exhaust

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175269
Mfg#:
251126
Ships in 3 Business Days
$286.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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 21, 2026
ON SALE! SAVE 10%
$1685.99

This product was last offered at the strikethrough price on
09-18-2026

$1516.73 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B7 A4 2.0T Cat-Back Exhaust System - Resonated

ES#2917843 - SSXAU517 - B7 A4 2.0T Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual GT 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual GT 100mm polished tips Automatic transmission only

Brand:
Milltek Sport - Corporate Logo
ES#:
2917843
Mfg#:
SSXAU517
Ships in 5 Business Days
ON SALE! SAVE 10%
$1606.99

This product was last offered at the strikethrough price on
09-18-2026

$1445.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Resonator Delete Kit

ES#4830681 - CTS-EXH-TP-0011 - Resonator Delete Kit - Installing this part allows for a subtle exhaust sound increase on your factory exhaust - CTS - Audi

Installing this part allows for a subtle exhaust sound increase on your factory exhaust

Brand:
CTS - Corporate Logo
ES#:
4830681
Mfg#:
CTS-EXH-TP-0011
Back Ordered
$179.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/A5 4" Direct-Fit Exhaust Tips - Chrome - Pair

ES#3476950 - 019490ecs02KT - B9 A4/A5 4" Direct-Fit Exhaust Tips - Chrome - Pair - A pair of direct-fit exhaust tips for the B9 A4/A5. No modifications necessary - ECS - Audi

A pair of direct-fit exhaust tips for the B9 A4/A5. No modifications necessary 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3476950
Mfg#:
019490ECS02KT
In Stock
ON SALE!
$147.98

This product was last offered at the strikethrough price on
06-13-2026

$143.54 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#8367 - 1K0998262 - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bosch - Audi Volkswagen

Keep your engine running efficiently We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
8367
Mfg#:
1K0998262
In Stock
$105.07 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Priced Each

ES#4069386 - 06E906265Q - Rear Oxygen Sensor - Priced Each - Fits left and right side - Bosch - Audi

Fits left and right side We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
4069386
Mfg#:
06E906265Q
In Stock
$192.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dual/Quad Exit Exhaust Conversion Hardware Kit

ES#4049650 - 8k0804172KT1 - Dual/Quad Exit Exhaust Conversion Hardware Kit - Composed of the necessary components needed while converting your single exit exhaust to a dual or quad exit exhaust system on your B8/B8.5 Audi A4 - Assembled By ECS - Audi

Composed of the necessary components needed while converting your single exit exhaust to a dual or quad exit exhaust system on your B8/B8.5 Audi A4 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4049650
Mfg#:
8K0804172KT1
In Stock
$157.99

This product was last offered at the strikethrough price on
06-30-2026

$148.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Direct-Fit Catalytic Converter

ES#3412016 - 52352 - Direct-Fit Catalytic Converter - Keep your emissions in check - Magnaflow - Audi

Keep your emissions in check New York & Federal Compliant

Brand:
Magnaflow - Corporate Logo
ES#:
3412016
Mfg#:
52352
Ships in 1 Business Day
$1320.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2435 - 1K0998262AB - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bosch - Audi Volkswagen

Keep your engine running efficiently We Price Match - Give Us A Call or Chat!
For engine code ATQ, fits left and right position

Brand:
Bosch - Corporate Logo
ES#:
2435
Mfg#:
1K0998262AB
Ships in 1 Business Day
$148.99

This product was last offered at the strikethrough price on
05-07-2026

$136.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Stainless 2.5" Downpipe

ES#3175271 - 251127 - Performance Stainless 2.5" Downpipe - High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust - Techtonics Tuning - Audi

High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust Fits automatic transmission models only - To be used with 2.5" aftermarket exhaust system

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175271
Mfg#:
251127
Ships in 9 Business Days
$286.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Left (Cylinders 4-6)

ES#2162754 - 1K0998262N - Oxygen Sensor - Left (Cylinders 4-6) - Found before the catalytic converter - Bosch - Audi Volkswagen

Found before the catalytic converter We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2162754
Mfg#:
1K0998262N
Ships in 1 Business Day
$239.99

This product was last offered at the strikethrough price on
04-10-2026

$223.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter

ES#10210 - 8E0131089DXkt - Remanufactured Catalytic Converter - Price includes a $910.00 refundable core charge - Genuine Volkswagen Audi - Audi Volkswagen

Price includes a $910.00 refundable core charge

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
10210
Mfg#:
8E0131089DXKT
Back Ordered
$2421.99

This product was last offered at the strikethrough price on
08-09-2026

$2403.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System

ES#4004062 - CTS-EXH-CB-0019 - Cat-Back Exhaust System - 3.0" tig welded T304 stainless steel with dual 4.0" polished stainless tips - CTS - Audi

3.0" tig welded T304 stainless steel with dual 4.0" polished stainless tips For vehicles up through the 2018 model year only (Pre-Facelift)

Brand:
CTS - Corporate Logo
ES#:
4004062
Mfg#:
CTS-EXH-CB-0019
Ships in 7 Business Days
$1199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo V-Band Clamp

ES#3241615 - 06J145807 - Turbo V-Band Clamp - Located in between the exhaust manifold and the turbo - Genuine Volkswagen Audi - Audi Volkswagen

Located in between the exhaust manifold and the turbo

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3241615
Mfg#:
06J145807
Ships in 1 Business Day
23% off MSRP

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

$64.99

This product was last offered at the strikethrough price on
09-17-2026

$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Exhaust Parts & Accessories

From stock exhaust system repairs to polished stainless steel performance exhaust, we have exhaust pipes, mufflers, resonators, and catalytic converters from the most respected suppliers in the business. Go loud, stay soft, look good with exhaust parts and systems from ECS Tuning.

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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