Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi S4 Most Popular Parts

Sort By
Filter By
Return to Top

Valve Cover Gasket Set - Priced Each

ES#259936 - 078198025 - Valve Cover Gasket Set - Priced Each - Fits the left and right side - Elring - Audi Volkswagen

Fits the left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
259936
Mfg#:
078198025
In Stock
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#251990 - N90956803 - Hex Bolt - Priced Each - Secures the front subframe to the vehicle. M12x1.5x120 - Genuine Volkswagen Audi - Audi

Secures the front subframe to the vehicle. M12x1.5x120 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
251990
Mfg#:
N90956803
In Stock
$11.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Density Line Front Sway Bar End Links

ES#4674128 - 034-402-4015 - Density Line Front Sway Bar End Links - Replace your OEM sway bar end links - 034Motorsport - Audi

Replace your OEM sway bar end links affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4674128
Mfg#:
034-402-4015
In Stock
$56.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

18" BBS SX Wheels - Set Of Four

18x8 ET44 5x112 57.1CB - Crystal Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BBS - Corporate Logo
ES#:
4753204
Mfg#:
SX0202CBKT
Ships in 1 Business Day
$1680.00 USD
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto Lowering Spring Kit

ES#3218658 - EMD-B9Q-LS - EMD Auto Lowering Spring Kit - Approximately 1.6" Front & Rear drop - Emmanuele Design - Audi

Approximately 1.6" Front & Rear drop affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Emmanuele Design - Corporate Logo
ES#:
3218658
Mfg#:
EMD-B9Q-LS
Ships in 1 Business Day
3% off MSRP

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

$290.00

This product was last offered at the strikethrough price on
06-21-2026

$280.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

18" BBS SX Wheels - Set Of Four

18x8 ET44 5x112 57.1CB - Sport Silver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BBS - Corporate Logo
ES#:
4753205
Mfg#:
SX0202SKKT
Ships in 1 Business Day
$1680.00 USD
This product is lifetime replacement eligible Lifetime Replacement

M14 Titanium Wheel Stud Kit - Black - Set Of 20

ES#4487742 - TISTUD20145BLK - M14 Titanium Wheel Stud Kit - Black - Set Of 20 - M14x1.5x75mm with conical nuts - Vargas Turbo Technologies - Audi Volkswagen

M14x1.5x75mm with conical nuts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4487742
Mfg#:
TISTUD20145BLK
Ships in 10 Business Days
$335.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Power Stop Z23 Evolution Sport Front Brake Kit (320mm)

ES#3157882 - K886 - Power Stop Z23 Evolution Sport Front Brake Kit (320mm) - A performance front-wheel brake upgrade featuring drilled & slotted rotors and low-dust carbon-fiber ceramic pads. - Power Stop - Audi

A performance front-wheel brake upgrade featuring drilled & slotted rotors and low-dust carbon-fiber ceramic pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Power Stop - Corporate Logo
ES#:
3157882
Mfg#:
K886
Ships in 1 Business Day
$279.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket - Left

ES#2737552 - 06E103483Q - Valve Cover Gasket - Left - Stop oil leaks and prevent internal engine damage - Genuine Volkswagen Audi - Audi

Stop oil leaks and prevent internal engine damage affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2737552
Mfg#:
06E103483Q
In Stock
7% off MSRP

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

$78.34

This product was last offered at the strikethrough price on
02-23-2026

$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PIAA H11 Solar Yellow Bulb - Pair

ES#3477272 - 22-13411 - PIAA H11 Solar Yellow Bulb - Pair - 55W bulbs with 2500K yellow color output for significantly less glare than white light - PIAA - Audi BMW Volkswagen Mercedes Benz MINI Porsche

55W bulbs with 2500K yellow color output for significantly less glare than white light affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
PIAA - Corporate Logo
ES#:
3477272
Mfg#:
22-13411
Ships on Aug 10, 2026
Auto Notify
$59.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Fuel Pressure Regulator

ES#4158836 - 034-106-5015 - Adjustable Fuel Pressure Regulator - Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 3.3-5 BAR - 034Motorsport - Audi Volkswagen

Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 3.3-5 BAR affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4158836
Mfg#:
034-106-5015
In Stock
$129.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" RF019 - Set Of Four

19"x8.5" ET45 5x112 57.1CB - Hyper Silver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
REVO - Corporate Logo
ES#:
4691276
Mfg#:
RV582W100800KT
Back Ordered
$1674.99 USD
This product is lifetime replacement eligible Lifetime Replacement

18" BBS SX Wheels - Set Of Four

ES#4753150 - SX0103SKKT1 - 18" BBS SX Wheels - Set Of Four - 18x8 ET44 5x112 66.6CB - Sport Silver - BBS - Audi BMW Mercedes Benz MINI

18x8 ET44 5x112 66.6CB - Sport Silver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BBS - Corporate Logo
ES#:
4753150
Mfg#:
SX0103SKKT1
Ships on Jul 8, 2026
$1673.99 USD
This product is lifetime replacement eligible Lifetime Replacement

19" RSe142 - Set Of Four

ES#3617753 - 88.142.04ms1KT - 19" RSe142 - Set Of Four - 19"x9.0" ET40 5x112 - Gloss Machine Silver - Neuspeed - Audi

19"x9.0" ET40 5x112 - Gloss Machine Silver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Neuspeed - Corporate Logo
ES#:
3617753
Mfg#:
88.142.04MS1KT
Ships in 2 Business Days
$1668.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

OEM Audi 2.9TT/4.0TT Direct Fuel Injector - Priced Each

ES#5397015 - 06m906036aq - OEM Audi 2.9TT/4.0TT Direct Fuel Injector - Priced Each - Maximum Power on Accompanying Stage 3 Tuning - Genuine Volkswagen Audi - Audi

Maximum Power on Accompanying Stage 3 Tuning affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5397015
Mfg#:
06M906036AQ
In Stock
$277.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings