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Audi S4 Most Popular Parts

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ES#1899278 - ecs41016/63 - Front & Rear Exact-Fit Stainless Steel Brake Lines - Kit - Complete set of DOT-compliant lines for an improved pedal feel - ECS - Audi
ECS Tuning recommends this product.

Complete set of DOT-compliant lines for an improved pedal feel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
1899278
Mfg#:
ECS41016/63
In Stock
ON SALE!
$210.98

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

$200.43 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4044357 - 023952ecs01KT - Audi B9 S4/S5 3.0T Performance Baffled Oil Catch Can System - Keep your intake tract clean and carbon free - ECS - Audi

Keep your intake tract clean and carbon free affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4044357
Mfg#:
023952ECS01KT
In Stock
ON SALE! SAVE 15%
$544.27

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

$462.63 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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
ES#3553443 - 68510476 - Dynamic Chassis Control Cancelers (DCC)  - Removes the code for DCC/EDC when swapping to coilovers. - KW Suspension - Audi

Removes the code for DCC/EDC when swapping to coilovers. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
KW Suspension - Corporate Logo
ES#:
3553443
Mfg#:
68510476
In Stock
$493.99 USD
Free Shipping
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
ES#3647752 - 027714ECS01 - Audi B9 S4/S5/SQ5 3.0T Big Bore Cast Aluminum Turbo Inlet Pipe - Remove the plastic and reduce restriction at your turbo - ECS - Audi

Remove the plastic and reduce restriction at your turbo affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3647752
Mfg#:
027714ECS01
In Stock
ON SALE! SAVE 25%
$193.99

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

$145.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4739037 - DD23-1898 - Rear DD23 "Daily Driver" Ceramic Brake Pad Set - This enthusiast-developed pad offers confident stopping power, very low dust, quiet braking, and a positive initial bite. The perfect choice for your daily-driven Euro! - ECS - Audi

This enthusiast-developed pad offers confident stopping power, very low dust, quiet braking, and a positive initial bite. The perfect choice for your daily-driven Euro! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4739037
Mfg#:
DD23-1898
In Stock
ON SALE! SAVE 20%
$79.99

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

$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4620408 - 034-108-5012 - 034Motorsport Turbo Inlet Pipe - Optimize power by eliminating a critical flow restriction in the intake tract - 034Motorsport - Audi

Optimize power by eliminating a critical flow restriction in the intake tract affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4620408
Mfg#:
034-108-5012
In Stock
$153.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4810655 - 06E998907E - Fuel Injector Seal Kit - Priced Each - One kit services one injector - Bremmen Parts - Audi

One kit services one injector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4810655
Mfg#:
06E998907E
In Stock
ON SALE! SAVE 15%
$10.99

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

$9.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3181977 - 06M905606F - Spark Plug - Priced Each - Keep your engine running strong - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181977
Mfg#:
06M905606F
In Stock
3% off MSRP

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

$15.00

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

$14.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3569216 - 025496ecs01KT1 - Audi B8 S4/S5 Pre-Facelift Luft-Technik Performance Supercharger Intercooler Kit - With ADS - Reduce restrictions and increase cooling! Whether you call it an intercooler, a heat exchanger, a radiator, or something else - this is the product for you. - ECS - Audi

Reduce restrictions and increase cooling! Whether you call it an intercooler, a heat exchanger, a radiator, or something else - this is the product for you. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B8 Pre-Facelift Models With ADS

Brand:
ECS - Corporate Logo
ES#:
3569216
Mfg#:
025496ECS01KT1
In Stock
ON SALE! SAVE 15%
$949.99

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

$807.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4418876 - IESOVZ12TCU - Stage 2 IE Performance ECU Tune - Includes Stage 2 TCU Tune & POWERlink Cable - Average gain of 138 horsepower and 178 lb-ft of torque on 91 Octane with full bolts-ons - Integrated Engineering - Audi

Average gain of 138 horsepower and 178 lb-ft of torque on 91 Octane with full bolts-ons affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4418876
Mfg#:
IESOVZ12TCU
In Stock
$1877.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3170153 - 019209ECS01 - Transmission Mount Bushing Insert Kit - Decrease transmission mount slop for better drivetrain response! - ECS - Audi

Decrease transmission mount slop for better drivetrain response! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3170153
Mfg#:
019209ECS01
In Stock
ON SALE! SAVE 15%
$91.99

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

$78.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2535605 - N0160276KT - Oil Service Kit - Includes OEM oil filter, drain plug/washer, and 8 quarts of OEM 502.00/505.00 High Performance Genuine Engine Oil (5w-40) - Genuine Volkswagen Audi - Audi

Includes OEM oil filter, drain plug/washer, and 8 quarts of OEM 502.00/505.00 High Performance Genuine Engine Oil (5w-40) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2535605
Mfg#:
N0160276KT
In Stock
$147.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#4830891 - CTS-EM-MQL-60D - Street Sport Motor Mounts - Redefine the balance between comfort and performance - CTS - Audi

Redefine the balance between comfort and performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4830891
Mfg#:
CTS-EM-MQL-60D
Ships in 1 Business Day
$349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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

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