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Audi S4 Exhaust Parts & Accessories

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Oxygen Sensor - Front Position

ES#2866474 - 078906265M - Oxygen Sensor - Front Position - Keep your engine running efficiently - Febi - Audi

Keep your engine running efficiently 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits left and right front position

Brand:
Febi - Corporate Logo
ES#:
2866474
Mfg#:
078906265M
Ships on Oct 20, 2026
$104.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.0" Stainless Steel 3-Bolt Flange - Priced Each

ES#4007189 - 028092ecs10aKT - 3.0" Stainless Steel 3-Bolt Flange - Priced Each - Universal 3-Bolt flange for your custom exhaust project. Extra thick 10mm flange to avoid warping. - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Universal 3-Bolt flange for your custom exhaust project. Extra thick 10mm flange to avoid warping. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4007189
Mfg#:
028092ECS10AKT
In Stock
ON SALE! SAVE 25%
$27.99

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

$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Allen Bolt - Priced Each

ES#4872118 - N0147215 - Allen Bolt - Priced Each - M10x25 - Secures the turbocharger to the exhaust manifold - Fischer and Plath - Audi

M10x25 - Secures the turbocharger to the exhaust manifold

Brand:
Fischer and Plath - Corporate Logo
ES#:
4872118
Mfg#:
N0147215
In Stock
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Resonated Center Section - Right Side

ES#3184655 - MSAU177 - Resonated Center Section - Right Side - Replacement right side resonated center section for your Milltek Exhaust system - Milltek Sport - Audi

Replacement right side resonated center section for your Milltek Exhaust system To be used with Milltek Sport exhaust systems SSXAU37, SSXAU46, SSXAU100, SSXAU296 (Or to make your existing non-resonated system SSXAU38, SSXAU48, SSXAU

Brand:
Milltek Sport - Corporate Logo
ES#:
3184655
Mfg#:
MSAU177
Ships in 4 Business Days
$187.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Resonated Center Section - Left Side

ES#3184656 - MSAU178 - Resonated Center Section - Left Side - Replacement left side resonated center section for your Milltek Exhaust system - Milltek Sport - Audi

Replacement left side resonated center section for your Milltek Exhaust system To be used with Milltek Sport exhaust systems SSXAU37, SSXAU46, SSXAU100, SSXAU296 (Or to make your existing non-resonated system SSXAU38, SSXAU48, SSXAU

Brand:
Milltek Sport - Corporate Logo
ES#:
3184656
Mfg#:
MSAU178
Ships in 4 Business Days
$187.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

Keep your engine running efficiently 10X Entries For Our 25th Anniversary Sweepstakes!
Fits the left and right position

Brand:
Bremmen Parts - Corporate Logo
ES#:
5373885
Mfg#:
06E906265AJ
Special Order: No Guaranteed ETA
Auto Notify
ON SALE! SAVE 10%
$203.99

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

$183.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Priced Each

Keep your engine running efficiently Fits the left and right position

Brand:
Facet - Corporate Logo
ES#:
4135683
Mfg#:
06E906265Q
In Stock at Vendor
$91.99

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

$88.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

73MM Exhaust Clamp - Priced Each

ES#3143291 - CHC73SS - 73MM Exhaust Clamp - Priced Each - Stainless band clamp used in various Milltek Sport exhaust systems - 73mm - Milltek Sport - Audi

Stainless band clamp used in various Milltek Sport exhaust systems - 73mm

Brand:
Milltek Sport - Corporate Logo
ES#:
3143291
Mfg#:
CHC73SS
In Stock
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Locking Nut - Priced Each

ES#470880 - N90824302 - Locking Nut - Priced Each - Locking nut with flange. M8 - Genuine Volkswagen Audi - Audi

Locking nut with flange. M8 Secures the manifold to the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470880
Mfg#:
N90824302
In Stock
ON SALE!
$6.99

This product was last offered at the strikethrough price on
06-15-2026

$6.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lambda Sensor

ES#2895561 - 11787512975 - Lambda Sensor - Keep your engine running efficiently - Vemo - Audi BMW Volkswagen

Keep your engine running efficiently

Brand:
Vemo - Corporate Logo
ES#:
2895561
Mfg#:
11787512975
Special Order: No Guaranteed ETA
$158.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbocharger Gasket

ES#3010739 - 059253232C - Turbocharger Gasket - Seals the turbocharger to the isolator - Genuine Volkswagen Audi - Audi

Seals the turbocharger to the isolator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3010739
Mfg#:
059253232C
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGR Valve Adapter Gasket - left

ES#284908 - 079131120B - EGR Valve Adapter Gasket - left - Seals the combi valve adapter to the cylinder head - Genuine Volkswagen Audi - Audi

Seals the combi valve adapter to the cylinder head

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284908
Mfg#:
079131120B
Ships in 5 Business Days
11% off MSRP

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

$17.99

This product was last offered at the strikethrough price on
07-22-2026

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Gasket - Priced Each

ES#3181968 - 06M253039G - Exhaust Gasket - Priced Each - Seals the turbo to the cylinder head - Genuine Volkswagen Audi - Audi

Seals the turbo to the cylinder head

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181968
Mfg#:
06M253039G
In Stock
$6.99

This product was last offered at the strikethrough price on
03-05-2026

$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

ES#2636229 - 1K0998262F - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - Walker - Audi Volkswagen

Keep your engine running efficiently Fits left and right position

Brand:
Walker - Corporate Logo
ES#:
2636229
Mfg#:
1K0998262F
In Stock at Vendor
$176.99

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

$142.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Priced Each

ES#4135682 - 06E906265Q - Rear Oxygen Sensor - Priced Each - Keep your engine running efficiently - Denso - Audi

Keep your engine running efficiently Fits the left and right position

Brand:
Denso - Corporate Logo
ES#:
4135682
Mfg#:
06E906265Q
Ships in 2 Business Days
$154.99

This product was last offered at the strikethrough price on
03-16-2026

$137.99 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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