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Audi S4 Most Popular Parts

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D3S Premium LED Conversion Kit - Series 2

ES#4875813 - 003452LB04-03 - D3S Premium LED Conversion Kit - Series 2 - Set of 2 24,000lm combined plug and play LED headlight bulbs to replace your tired xenon bulbs - ZiZa - Audi Volkswagen

Set of 2 24,000lm combined plug and play LED headlight bulbs to replace your tired xenon bulbs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ZiZa - Corporate Logo
ES#:
4875813
Mfg#:
003452LB04-03
In Stock
ON SALE! SAVE 10%
$89.99

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

$80.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

18" Style 881 Wheels - Set Of Four

ES#2652318 - 881AKT3 - 18" Style 881 Wheels - Set Of Four - 18x8.5 ET35 5x112 66.6CB - Silver With Machined Lip - Alzor - Audi MINI

18x8.5 ET35 5x112 66.6CB - Silver With Machined Lip 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#:
2652318
Mfg#:
881AKT3
In Stock
ON SALE! SAVE 25%
$1166.99

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

$875.01 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Water Pump Kit

ES#5434868 - 06M121013GKT - Ultimate Water Pump Kit - Keep your cooling system running properly - Genuine Volkswagen Audi - Audi

Keep your cooling system running properly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes Updated 6-Bolt Water Pump and Pulley

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5434868
Mfg#:
06M121013GKT
Ships in 3 Business Days
$1048.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Oil Filter Kit - Priced Each

ES#12097 - 06E115562A - Oil Filter Kit - Priced Each - Keep debris out of your oil and keep your engine running healthy - Hengst - Audi
ECS Tuning recommends this product.

Keep debris out of your oil and keep your engine running healthy affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
12097
Mfg#:
06E115562A
In Stock
$12.99 USD
Free Shipping
on orders $49 and up

60A Solid Rubber OEM+ Engine Mount Kit & Transmission Mount Bushing Insert Kit

ES#4876601 - 039803LA01EBKT - 60A Solid Rubber OEM+ Engine Mount Kit & Transmission Mount Bushing Insert Kit - 60A Durometer solid rubber that eliminates the soft and leak prone factory engine mounts paired with decreased transmission mount slop for better drivetrain response! - Enthusiast Bundles - Audi

60A Durometer solid rubber that eliminates the soft and leak prone factory engine mounts paired with decreased transmission mount slop for better drivetrain response! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876601
Mfg#:
039803LA01EBKT
Ships on Jul 10, 2026
Auto Notify
ON SALE! SAVE 21%
$629.99

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

$499.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Wheel Bolt - 14x1.5x45mm - Priced Per Pair

ES#4159275 - S17D45R13ZNNI-2 - Ball Seat Wheel Bolt - 14x1.5x45mm - Priced Per Pair - Black zinc coated wheel bolts made specifically for OE wheels - ECS - Audi Volkswagen

Black zinc coated wheel bolts made specifically for OE wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4159275
Mfg#:
S17D45R13ZNNI-2
In Stock
ON SALE! SAVE 25%
$11.99

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

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Engine Cover Kit - Audi 3.0T

ES#2999048 - 015339ECS01 - Carbon Fiber Engine Cover Kit - Audi 3.0T - Add a touch of carbon fiber to your stock engine cover! - ECS - Audi

Add a touch of carbon fiber to your stock engine cover! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2999048
Mfg#:
015339ECS01
Ships on Jun 25, 2026
Auto Notify
ON SALE! SAVE 10%
$398.99

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

$358.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM HD Overdrive Lightweight Supercharger Crank Pulley (187mm)

ES#4045868 - 06E105251F-187mm - JHM HD Overdrive Lightweight Supercharger Crank Pulley (187mm) - Eliminates the problematic two-piece design and rubber isolator found in the stock crank pulley while reducing the mass of the motor's rotating assembly. - JH Motorsports - Audi Volkswagen Porsche

Eliminates the problematic two-piece design and rubber isolator found in the stock crank pulley while reducing the mass of the motor's rotating assembly. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*To be used with 'Stage 2' software or software specific to a supercharger crank pulley upgrade*

Brand:
JH Motorsports - Corporate Logo
ES#:
4045868
Mfg#:
06E105251F-187MM
In Stock
$324.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#4340775 - 06H905110P - Ignition Coil - Priced Each - Keep your engine running smooth - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4340775
Mfg#:
06H905110P
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.

$104.98

This product was last offered at the strikethrough price on
06-08-2026

$97.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear V5 Plain Brake Rotors - Set (330x22)

ES#4668334 - 4H0615601Q-P - Rear V5 Plain Brake Rotors - Set (330x22) - Precision manufactured and featuring a GeoSpec corrosion-resistant coating - ECS - Audi

Precision manufactured and featuring a GeoSpec® corrosion-resistant coating affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4668334
Mfg#:
4H0615601Q-P
In Stock
ON SALE!
$201.99

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

$191.88 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Forge Turbo Blanket

ES#3411173 - FMTUBL1 - Forge Turbo Blanket - Keep your underhood temps low and your turbo speeds high! - Forge - Audi Volkswagen

Keep your underhood temps low and your turbo speeds high! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
3411173
Mfg#:
FMTUBL1
In Stock
$94.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VWR Billet Fuel Filler Cap - Push & Twist Type

ES#4040601 - vwr19G711 - VWR Billet Fuel Filler Cap - Push & Twist Type - Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! - Racingline - Audi Volkswagen Porsche

Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with bayonet/twist lock style gas cap only. Please confirm prior to ordering.

Brand:
Racingline - Corporate Logo
ES#:
4040601
Mfg#:
VWR19G711
In Stock
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Check Valve Service Kit

ES#2765724 - 079103175CKT - Oil Check Valve Service Kit - Service your oil check valves to ensure your cylinder heads are properly lubricated - Assembled By ECS - Audi

Service your oil check valves to ensure your cylinder heads are properly lubricated affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2765724
Mfg#:
079103175CKT
In Stock at Vendor
ON SALE!
$285.99

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

$279.42 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Stainless Steel Braided Line Kit

ES#4635698 - 034-303-0015 - Stainless Steel Braided Line Kit - Features telfon linings, stainless steel braided reinforcement, and a protective black PVC covering. - 034Motorsport - Audi

Features telfon linings, stainless steel braided reinforcement, and a protective black PVC covering. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4635698
Mfg#:
034-303-0015
In Stock
$195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear 2-Piece Brake Rotors - Pair (330x22)

ES#2681143 - 002879ECS01AKT - Rear 2-Piece Brake Rotors - Pair (330x22) - Direct bolt-on replacement - 18% less weight! - ECS - Audi Porsche

Direct bolt-on replacement - 18% less weight! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2681143
Mfg#:
002879ECS01AKT
In Stock
ON SALE!
$714.99

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

$693.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 10mm With Black Conical Seat Bolts

ES#2748192 - 00240302A10KT4 - ECS Wheel Spacer & Bolt Kit - 10mm 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2748192
Mfg#:
00240302A10KT4
In Stock
ON SALE! SAVE 25%
$137.99

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

$103.27 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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