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Audi A4 Exhaust Parts & Accessories

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ES#2992781 - SSXAU509 - 2.5" Non-resonated Cat-back Exhaust System - Stainless steel 2.5" cat-back exhaust systems. - Milltek Sport - Audi

Stainless steel 2.5" cat-back exhaust systems. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
2992781
Mfg#:
SSXAU509
Ships in 4 Business Days
$1719.99 USD
Free Shipping
on orders $49 and up
ES#4810745 - 06F103397 - Exhaust Manifold Stud - Priced Each - Stud used to secure the exhaust manifold to the cylinder head. M8x56 - Rein - Audi Volkswagen

Stud used to secure the exhaust manifold to the cylinder head. M8x56 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Used to secure the turbo manifold to the head, 4 required

Brand:
Rein - Corporate Logo
ES#:
4810745
Mfg#:
06F103397
Ships in 4 Business Days
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3969444 - SAUX076 - 3.15" High Flow Sports Cat - 3.15" T304 stainless construction, offers increased hp/tq throughout the powerband - Scorpion - Audi

3.15" T304 stainless construction, offers increased hp/tq throughout the powerband affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles up through 2020

Brand:
Scorpion - Corporate Logo
ES#:
3969444
Mfg#:
SAUX076
Ships in 3 Business Days
$733.99 USD
Free Shipping
on orders $49 and up
ES#2894326 - 021906265AG - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Vemo - Audi Volkswagen

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Vemo - Corporate Logo
ES#:
2894326
Mfg#:
021906265AG
In Stock at Vendor
$127.00

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

$123.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2894883 - 06E131101E - EGR Valve - Left - Also known as the 'combi valve' - Vemo - Audi Volkswagen

Also known as the 'combi valve' affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2894883
Mfg#:
06E131101E
In Stock at Vendor
$378.99

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

$367.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2719264 - 021906265AQ - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Walker - Audi Volkswagen

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Walker - Corporate Logo
ES#:
2719264
Mfg#:
021906265AQ
In Stock at Vendor
$128.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

This system will increase power, reduce weight, and provide a legendary exhaust note! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Requires a S4 Style Quad diffuser on non-S-line rear bumper or an S4 rear diffuser on S-line rear bumper.

Brand:
Armytrix - Corporate Logo
ES#:
3675674
Mfg#:
A5942-QS11B
Ships on Jun 25, 2026
$4354.00 USD
Free Shipping

This system will increase power, reduce weight, and provide a legendary exhaust note! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Requires a S4 Style Quad diffuser on non-S-line rear bumper or an S4 rear diffuser on S-line rear bumper.

Brand:
Armytrix - Corporate Logo
ES#:
3675719
Mfg#:
AU942-QC11
Ships on Jun 25, 2026
$4830.00 USD
Free Shipping

This system will increase power, reduce weight, and provide a legendary exhaust note! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Requires a S4 Style Quad diffuser on non-S-line rear bumper or an S4 rear diffuser on S-line rear bumper.

Brand:
Armytrix - Corporate Logo
ES#:
3675676
Mfg#:
A5942-QS11M
Ships on Jun 25, 2026
$4410.00 USD
Free Shipping

Restore fuel mileage and clear codes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For cylinders 1-3

Brand:
Bosch - Corporate Logo
ES#:
2550380
Mfg#:
13944
In Stock at Vendor
$248.99

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

$241.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Also known as the 'combi valve' affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
3537204
Mfg#:
06E131102B
Ships in 2 Business Days
$179.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Keep your emissions in check affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Left side

Brand:
Hamburg Tech - Corporate Logo
ES#:
3537205
Mfg#:
078131101AG
Ships in 2 Business Days
$149.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Downpipe with HJS 200-Cell High Flow Cat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4159430
Mfg#:
SSXAU744
Ships in 4 Business Days
$1514.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Used to hold rear muffler in position affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits the left position

Brand:
Rein - Corporate Logo
ES#:
5341058
Mfg#:
8K0253144A
Ships in 4 Business Days
$15.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fits the left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Fits up to VIN 8D-W-180000 - Split is in the 1998 model year

Brand:
Rein - Corporate Logo
ES#:
2801428
Mfg#:
078253039C
Ships in 4 Business Days
$7.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2766069 - 078131120KKT3 - EGR Valve Replacement Kit - Complete gasket and hardware to replace the EGR valve - Assembled By ECS - Audi

Complete gasket and hardware to replace the EGR valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2766069
Mfg#:
078131120KKT3
Ships in 3 Business Days
ON SALE!
$62.99

This product was last offered at the strikethrough price on
05-02-2026

$59.55 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

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Manufacturer names and/or part numbers are used only for identification purposes.

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