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Audi S4 Most Popular Parts

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ES#3426977 - SSXAU677 - Active Valve Control System - Gain complete control of the OE exhaust valves on factory and Milltek Sport exhaust systems - Milltek Sport - Audi

Gain complete control of the OE exhaust valves on factory and Milltek Sport exhaust systems

Brand:
Milltek Sport - Corporate Logo
ES#:
3426977
Mfg#:
SSXAU677
Ships on Nov 30, 2026
$809.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#468040 - N10347204 - Torx Bolt - Priced Each - Install new hardware with your new parts. M6x25 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M6x25 Seals both hoses to the condenser and seals both hoses to the receiver/drier up to VIN 8E-7-066000, split is in the 2007 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468040
Mfg#:
N10347204
In Stock
41% off MSRP

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

$3.40

This product was last offered at the strikethrough price on
11-06-2026

$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4158614 - n90281802ktKT1 - Rear Differential Service Kit - Complete kit with Redline 75w90 fluid with ECS stainless steel magnetic plugs and seals to service your rear differential. - Assembled By ECS - Audi Volkswagen

Complete kit with Redline 75w90 fluid with ECS stainless steel magnetic plugs and seals to service your rear differential. 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
For vehicles with Torque Vectoring differentials

Brand:
Assembled By ECS - Corporate Logo
ES#:
4158614
Mfg#:
N90281802KTKT1
In Stock
$119.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#3426744 - 12404KT1 - Oil Service Kit - Premium  - Includes Redline Euro-Series synthetic oil, Hengst filter, and drain plug - Assembled By ECS - Audi

Includes Redline Euro-Series synthetic oil, Hengst filter, and drain plug 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
3426744
Mfg#:
12404KT1
In Stock
$167.99

This product was last offered at the strikethrough price on
09-14-2026

$165.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#280591 - 06E103471P - Valve Cover - Left - For cylinder 4-6 and includes the gasket and bolts - Genuine Volkswagen Audi - Audi

For cylinder 4-6 and includes the gasket and bolts

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280591
Mfg#:
06E103471P
Ships in 1-2 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.

$441.99

This product was last offered at the strikethrough price on
10-05-2026

$402.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3569431 - 023419ECS01-06 - B8 A4/S4 Race Tow Strap - Black - Look great on the track or street! - ECS - Audi

Look great on the track or street! 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
3569431
Mfg#:
023419ECS01-06
In Stock
Limited Qty Sale
$109.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2702914 - 8E0407505PKT1 - Front Upper Control Arm Kit - With Hardware - Includes all front upper control arms and hardware - URO - Audi Volkswagen

Includes all front upper control arms and hardware 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2702914
Mfg#:
8E0407505PKT1
In Stock
$167.99

This product was last offered at the strikethrough price on
09-29-2026

$160.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2966689 - 034-505-2016 - Rear Differential Carrier Mount Insert Kit - Installation is very simple, can be performed in minutes, and is completely reversible. - 034Motorsport - Audi

Installation is very simple, can be performed in minutes, and is completely reversible. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2966689
Mfg#:
034-505-2016
Ships in 2 Business Days
$134.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5335417 - 06M109450S - Timing Chain With Tensioner Rail - Right  - Replacement timing chain & tensioner for required maintenance - Genuine Volkswagen Audi - Audi

Replacement timing chain & tensioner for required maintenance Fits from production date 4/16/2018

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5335417
Mfg#:
06M109450S
Ships in 1-2 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.

$293.99

This product was last offered at the strikethrough price on
10-05-2026

$267.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2779621 - 8k0411317dkt - Front Sway Bar End Link Kit - Includes both end links with securing hardware - Genuine Volkswagen Audi - Audi

Includes both end links with securing hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2779621
Mfg#:
8K0411317DKT
Ships in 1-2 days
$271.99

This product was last offered at the strikethrough price on
10-26-2026

$267.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4830393 - CTS-TM-B8-65D - Sport Transmission Mount - Upgrade is designed to enhance the performance and power delivery  with a stiffer 65A mount - CTS - Audi

Upgrade is designed to enhance the performance and power delivery with a stiffer 65A mount

Brand:
CTS - Corporate Logo
ES#:
4830393
Mfg#:
CTS-TM-B8-65D
Ships in 7 Business Days
ON SALE! SAVE 15%
$34.99

This product was last offered at the strikethrough price on
09-29-2026

$29.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2606421 - 06E906265AJ - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - Genuine Volkswagen Audi - Audi

Keep your engine running efficiently Fits the left and right position

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2606421
Mfg#:
06E906265AJ
Ships in 1-2 days
13% off MSRP

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

$461.99

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

$400.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2739365 - 8R0955425 - Rear Aero Wiper Blade - Clear up streaks & improve rainy day visibility - Bosch - Audi BMW

Clear up streaks & improve rainy day visibility We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2739365
Mfg#:
8R0955425
In Stock
$11.99

This product was last offered at the strikethrough price on
10-26-2026

$9.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4821045 - 06e903133aektkt1 - Accessory Belt Kit - Keep your car from breaking down by replacing your cracked drive belt - Genuine Volkswagen Audi - Audi

Keep your car from breaking down by replacing your cracked drive belt

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4821045
Mfg#:
06E903133AEKTKT1
Ships in 1-2 days
$865.99

This product was last offered at the strikethrough price on
06-07-2026

$800.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3220704 - 022539ECS01 - Carbon Fiber Front Lip Overlay - Audi B9 A4/S4 - Add a subtle touch of carbon fiber to your B9 A4/S4 front bumper - ECS - Audi

Add a subtle touch of carbon fiber to your B9 A4/S4 front bumper 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Fits up to 2019 model year with *pre-facelift* front bumpers

Brand:
ECS - Corporate Logo
ES#:
3220704
Mfg#:
022539ECS01
In Stock
Limited Qty Sale
$225.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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