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Audi S4 Most Popular Parts

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Front Upper Strut Bracket - Priced Each

ES#436992 - 8E0412391C - Front Upper Strut Bracket - Priced Each - Fits the left and right side - Genuine Volkswagen Audi - Audi

Fits the left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
436992
Mfg#:
8E0412391C
Ships in 1-2 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.

$348.34

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

$310.32 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear B4 OE sport Shock - Priced Each

ES#2981795 - 19-164489 - Rear B4 OE sport Shock - Priced Each - Fits left and right side - Bilstein - Audi

Fits left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bilstein - Corporate Logo
ES#:
2981795
Mfg#:
19-164489
In Stock
$99.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Solenoid

ES#3098974 - 06E115243H - Oil Pressure Solenoid - Mounted on the side of the cylinder head. Sometimes referred to as the N428 valve. - Genuine Volkswagen Audi - Audi Volkswagen

Mounted on the side of the cylinder head. Sometimes referred to as the N428 valve. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3098974
Mfg#:
06E115243H
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.

$164.99

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

$153.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt

ES#4661037 - 6PK2330 - Performance Kevlar Reinforced Accessory Belt - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

From the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
4661037
Mfg#:
6PK2330
Ships in 5 Business Days
$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR 3.0 TFSI Ultracharger System

ES#3219160 - MS100128 - APR 3.0 TFSI Ultracharger System - Dramatically increases horsepower and torque, and maximizes the power potential of the 3.0 TFSI - APR - Audi

Dramatically increases horsepower and torque, and maximizes the power potential of the 3.0 TFSI Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
APR’s Ultracharger ECU Upgrade is included for those who currently have an APR Stage 2 ECU Upgrade. APR

Brand:
APR - Corporate Logo
ES#:
3219160
Mfg#:
MS100128
Ships in 4 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.

$1037.99

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

$921.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front EP24 "Enthusiast Performance" Brake Pad Set

ES#4739100 - EP24-1894 - Front EP24 "Enthusiast Performance" Brake Pad Set - This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. - ECS - Audi

This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
4739100
Mfg#:
EP24-1894
In Stock
ON SALE! SAVE 35%
$180.99

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

$117.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Density Line Transmission Mount - Priced Each

ES#2951988 - 034-509-4006sd - Street Density Line Transmission Mount - Priced Each - Increase performance and durability without sacrificing comfort - 034Motorsport - Audi

Increase performance and durability without sacrificing comfort affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Automatic transmission only

Brand:
034Motorsport - Corporate Logo
ES#:
2951988
Mfg#:
034-509-4006SD
In Stock
$131.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Valve Spring/Retainer Kit - Higher exhaust spring seat pressure

ES#3604607 - SPRK-AUD27T-DR - Performance Valve Spring/Retainer Kit - Higher exhaust spring seat pressure - High performance kit includes intake/exhaust valve springs, spring seats, and retainers - Supertech - Audi

High performance kit includes intake/exhaust valve springs, spring seats, and retainers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supertech - Corporate Logo
ES#:
3604607
Mfg#:
SPRK-AUD27T-DR
Ships in 1 Business Day
$785.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Additive

ES#1895145 - G001770A2 - Fuel Additive - 90ML Gasoline additive used to clean your VW or Audi's fuel system - Genuine Volkswagen Audi - Audi Volkswagen

90ML Gasoline additive used to clean your VW or Audi's fuel system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1895145
Mfg#:
G001770A2
In Stock
4% off MSRP

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

$12.29

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

$11.78 USD
Free Shipping
on orders $49 and up

EMD Auto 15mm Wheel Spacers - Pair (With Bolts)

ES#4042997 - EMD-SPACER15665B - EMD Auto 15mm Wheel Spacers - Pair (With Bolts) - Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore - Emmanuele Design - Audi

Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Emmanuele Design - Corporate Logo
ES#:
4042997
Mfg#:
EMD-SPACER15665B
Ships in 8 Business Days
$110.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM Trio Package - Solid Shifter, Linkage and Bushing kit

ES#4046102 - PKG-B6B7S4 - JHM Trio Package - Solid Shifter, Linkage and Bushing kit - Guarantees the ultimate shifting experience! - JH Motorsports - Audi

Guarantees the ultimate shifting experience! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4046102
Mfg#:
PKG-B6B7S4
Ships in 2 Business Days
$499.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear EP24 "Enthusiast Performance" Brake Pad Set

ES#4739102 - EP24-1898 - Rear EP24 "Enthusiast Performance" Brake Pad Set - This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. - ECS - Audi

This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
4739102
Mfg#:
EP24-1898
In Stock
$121.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug - Priced Each

ES#2731765 - 94460 - Spark Plug - Priced Each - Keep your engine running strong - NGK - Audi Porsche

Keep your engine running strong affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
2731765
Mfg#:
94460
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Cross Drilled UV Coated Brake Rotors - Pair (345x30)

ES#4491561 - 8k0615301kxKT - Front Cross Drilled UV Coated Brake Rotors - Pair (345x30) - Features Brembo's special UV paint treatment that guarantees superior corrosion resistance. - Brembo - Audi

Features Brembo's special UV paint treatment that guarantees superior corrosion resistance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Brembo - Corporate Logo
ES#:
4491561
Mfg#:
8K0615301KXKT
In Stock
$419.99

This product was last offered at the strikethrough price on
01-21-2026

$341.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Style 628 Wheels - Set Of Four

ES#2608946 - 628-7KT - 19" Style 628 Wheels - Set Of Four - 19"x8.5" ET45 5x112 66.6CB - Gloss Gunmetal/Machined Face - Alzor - Audi MINI

19"x8.5" ET45 5x112 66.6CB - Gloss Gunmetal/Machined Face affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Wheel spacers may be necessary for front caliper clearance

Brand:
Alzor - Corporate Logo
ES#:
2608946
Mfg#:
628-7KT
In Stock
ON SALE! SAVE 40%
$1300.00

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

$779.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8/C7 Center Differential Delete - NO WELDING NEEDED

ES#4375353 - 012535LA01 - B8/C7 Center Differential Delete - NO WELDING NEEDED - Easily allows the removal of center differential when converting your B8 S4 to RWD (rear wheel drive) from Quattro - ECS - Audi

Easily allows the removal of center differential when converting your B8 S4 to RWD (rear wheel drive) from Quattro affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE
100% reversible RWD kit when paired with our Axle Delete Plugs (ES4373491) Please make sure via VIN that

Brand:
ECS - Corporate Logo
ES#:
4375353
Mfg#:
012535LA01
Ships on Jul 6, 2026
Auto Notify
$452.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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