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Audi S4 Most Popular Parts

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RS4 Engine Mount - Priced Each

ES#2816259 - 8D0199379AD - RS4 Engine Mount - Priced Each - Upgrade to more durable mounts with no modifications necessary - Hamburg Tech - Audi Volkswagen

Upgrade to more durable mounts with no modifications necessary We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816259
Mfg#:
8D0199379AD
In Stock
$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Style 620 - Set Of Four

ES#3690743 - 620-18KT - 19" Style 620 - Set Of Four - 19"x8.5" ET42 5x112 - Hyper Silver - Alzor - Audi Volkswagen

19"x8.5" ET42 5x112 - Hyper Silver 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Alzor - Corporate Logo
ES#:
3690743
Mfg#:
620-18KT
In Stock
ON SALE! SAVE 25%
$1310.00

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

$983.25 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Style 040 Wheels - Set Of Four

ES#2771272 - 040-7KT1 - 19" Style 040 Wheels - Set Of Four - 19x8.5 ET35 5x112 57.1CB - Silver/Machined Face - Alzor - Audi Volkswagen

19x8.5 ET35 5x112 57.1CB - Silver/Machined Face 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Alzor - Corporate Logo
ES#:
2771272
Mfg#:
040-7KT1
Ships on Jan 11, 2027
ON SALE! SAVE 25%
$1310.00

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

$983.25 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 15mm With Black Conical Seat Bolts

ES#2748194 - ECS10157KTWBC1 - ECS Wheel Spacer & Bolt Kit - 15mm With Black Conical Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 10X Entries Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that require conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748194
Mfg#:
ECS10157KTWBC1
In Stock
ON SALE! SAVE 15%
$164.99

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

$140.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump - 4 Bolt

ES#4699390 - 06M121013D - Water Pump - 4 Bolt - New 4 bolt water pump. Does not include pulley - Hepu - Audi Porsche

New 4 bolt water pump. Does not include pulley

Brand:
Hepu - Corporate Logo
ES#:
4699390
Mfg#:
06M121013D
Ships in 1 Business Day
$274.99

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

$235.99 USD
Free Shipping
on orders $49 and up

2.7T Silicone Boost Hose Kit - Black

ES#2800108 - 003558ECS01AKT - 2.7T Silicone Boost Hose Kit - Black - Add a better flowing, stronger set of hoses to your vehicle and keep it running strong. - ECS - Audi

Add a better flowing, stronger set of hoses to your vehicle and keep it running strong. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2800108
Mfg#:
003558ECS01AKT
In Stock
ON SALE! SAVE 25%
$379.99

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

$284.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Position Rear Differential Mount Insert Kit

ES#2992519 - 008288ECS01 - Front Position Rear Differential Mount Insert Kit - Decrease differential slop for better drivetrain response! - ECS - Audi Porsche

Decrease differential slop for better drivetrain response! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2992519
Mfg#:
008288ECS01
In Stock
ON SALE! SAVE 25%
$95.99

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

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Sport Strut - Priced Each 8240 1279Sport

ES#2219732 - 82401279SPORT - Front Sport Strut - Priced Each 8240 1279Sport - Fits the left and right side - Koni - Audi Porsche

Fits the left and right side Vehicles equipped with Electronic Damping Control (EDC) will lose factory shock damping and receive a system error code

Brand:
Koni - Corporate Logo
ES#:
2219732
Mfg#:
82401279SPORT
In Stock
38% off MSRP

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

$425.99

This product was last offered at the strikethrough price on
10-23-2026

$262.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#2575254 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - Pierburg - Audi Volkswagen

Common cure for DTC P0441

Brand:
Pierburg - Corporate Logo
ES#:
2575254
Mfg#:
037906283C
In Stock
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet R1 Diverter Valve - Priced Each

ES#8818 - DV100001 - Billet R1 Diverter Valve - Priced Each - Less maintenance, more boost - APR - Audi Volkswagen Porsche

Less maintenance, more boost Call In Or Chat For Best Price!

2 required

Brand:
APR - Corporate Logo
ES#:
8818
Mfg#:
DV100001
Ships in 3 Business Days
ON SALE! SAVE 10%
$291.99

This product was last offered at the strikethrough price on
09-28-2026

$262.76 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Style 679 Wheels - Set Of Four

ES#3619049 - 679-4KT - 19" Style 679 Wheels - Set Of Four - 19x8 ET45 5x112 57.1CB - Matte Black - Alzor - Audi Volkswagen

19x8 ET45 5x112 57.1CB - Matte Black 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Alzor - Corporate Logo
ES#:
3619049
Mfg#:
679-4KT
In Stock
ON SALE! SAVE 25%
$1300.00

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

$975.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear RedStuff Performance Brake Pad Set

ES#2070769 - DP31988C - Rear RedStuff Performance Brake Pad Set - High performance street pad, featuring Kevlar technology - EBC - Audi

High performance street pad, featuring Kevlar technology 2X Entries Into Our F80 M3 Sweepstakes

Brand:
EBC - Corporate Logo
ES#:
2070769
Mfg#:
DP31988C
In Stock
5% off MSRP

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

$179.39

This product was last offered at the strikethrough price on
10-23-2026

$170.42 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hi-Volume Fuel Pump Upgrade Kit

ES#3146299 - 10-127-101K - Hi-Volume Fuel Pump Upgrade Kit - Up to a 5% Torque increase and additional 10Bar of fuel rail pressure! - Autotech - Audi Volkswagen

Up to a 5% Torque increase and additional 10Bar of fuel rail pressure!

Brand:
Autotech - Corporate Logo
ES#:
3146299
Mfg#:
10-127-101K
In Stock
$339.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4 S-Line / S4 Grille Accent Set - Gloss Black

ES#3991472 - 028800ECS01 - Audi B9 A4 S-Line / S4 Grille Accent Set - Gloss Black - Upgrade your exterior styling - ECS - Audi

Upgrade your exterior styling 10X Entries Into Our F80 M3 Sweepstakes

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

Brand:
ECS - Corporate Logo
ES#:
3991472
Mfg#:
028800ECS01
In Stock
ON SALE! SAVE 20%
$292.99

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

$234.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

18" APEX SM-10 Wheels - Set of Four

ES#4370223 - sm101885et43KT - 18" APEX SM-10 Wheels - Set of Four - 18x8.5 ET43 5x112 57.1CB - Anthracite - APEX Wheels - Audi Volkswagen

18x8.5 ET43 5x112 57.1CB - Anthracite 2X Entries Into Our F80 M3 Sweepstakes

Brand:
APEX Wheels - Corporate Logo
ES#:
4370223
Mfg#:
SM101885ET43KT
Ships in 5 Business Days
$1696.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" BBS LM Wheels - Set Of Four

ES#3138174 - LM249DSPKKT - 19" BBS LM Wheels - Set Of Four - 19x8.5 ET48 5x112 57.1CB - Diamond Silver Center with Diamond Cut Lip - BBS - Audi Volkswagen

19x8.5 ET48 5x112 57.1CB - Diamond Silver Center with Diamond Cut Lip

Brand:
BBS - Corporate Logo
ES#:
3138174
Mfg#:
LM249DSPKKT
Ships on Nov 10, 2026
$6773.99 USD
This product is lifetime replacement eligible Lifetime Replacement

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