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Audi S4 Most Popular Parts

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ES#2827394 - SSXAU268 - Cat-Back Exhaust System - Non-Resonated - 2.37" stainless steel with quad 80mm polished tips - Milltek Sport - Audi

2.37" stainless steel with quad 80mm polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827394
Mfg#:
SSXAU268
Ships in 3 Business Days
$2844.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#520355 - DP31473C -  Front RedStuff Performance Brake Pad Set - A high-performance street pad featuring Kevlar technology - EBC - Audi Volkswagen Porsche

A high-performance street pad featuring Kevlar technology affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

For use with the Stage 4 Big Brake Kit

Brand:
EBC - Corporate Logo
ES#:
520355
Mfg#:
DP31473C
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.

$332.99

This product was last offered at the strikethrough price on
06-18-2026

$315.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2679386 - D174003M2 - Gasket/Silicone Sealant - 80mL - Useful for making many different gaskets - Genuine Volkswagen Audi - Audi Volkswagen

Useful for making many different gaskets affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2679386
Mfg#:
D174003M2
In Stock
$57.99 USD
Free Shipping
on orders $49 and up
ES#3569526 - 018360ecs01KT - Carbon Fiber Grille Accent Set - Audi B8.5  - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits Facelift models from the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
3569526
Mfg#:
018360ECS01KT
In Stock
ON SALE! SAVE 10%
$630.98

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

$567.88 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4900372 - tc10rt18942sKT - 18" Apex TC-10RT Forged Wheels - Set Of Four - 18x9 ET42 5x112 57.1CB - Race Silver - APEX Wheels - Audi Volkswagen

18x9 ET42 5x112 57.1CB - Race Silver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
APEX Wheels - Corporate Logo
ES#:
4900372
Mfg#:
TC10RT18942SKT
Ships in 5 Business Days
$2836.00 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4416610 - 06M906036AP - Fuel Injector- Priced Each - Replace your old and failing injectors - Genuine Volkswagen Audi - Audi

Replace your old and failing injectors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 06/15/2020

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4416610
Mfg#:
06M906036AP
In Stock
ON SALE!
$213.00

This product was last offered at the strikethrough price on
06-15-2026

$202.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1162 - B5QSSBLK - Front & Rear Exact-Fit Stainless Steel Brake Lines - Kit - Complete set of DOT-compliant lines for an improved pedal feel - ECS - Audi

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#:
1162
Mfg#:
B5QSSBLK
In Stock
ON SALE!
$212.99

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

$202.34 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3701662 - 140-14588-DR - AERO6 Front Big Brake Kit - 15.00" - Featuring red Aero6 six piston caliper and 15.00" drilled & slotted rotors - Delivers the ultimate combination for braking power and style! - Wilwood - Audi

Featuring red Aero6 six piston caliper and 15.00" drilled & slotted rotors - Delivers the ultimate combination for braking power and style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*19 inch minimum wheel diameter*

Brand:
Wilwood - Corporate Logo
ES#:
3701662
Mfg#:
140-14588-DR
Back Ordered
$2826.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3701661 - 140-14588-D - AERO6 Front Big Brake Kit - 15.00" - Featuring black Aero6 six piston caliper and 15.00" drilled & slotted rotors - Delivers the ultimate combination for braking power and style! - Wilwood - Audi

Featuring black Aero6 six piston caliper and 15.00" drilled & slotted rotors - Delivers the ultimate combination for braking power and style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*19 inch minimum wheel diameter*

Brand:
Wilwood - Corporate Logo
ES#:
3701661
Mfg#:
140-14588-D
Back Ordered
$2826.99 USD
ES#2217228 - 4G0407253B - Front Wheel Bearing Housing - Left - Also referred to as the spindle or steering knuckle - Genuine Volkswagen Audi - Audi

Also referred to as the spindle or steering knuckle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits from production date 11/15/2011 (M14 ball joint)

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2217228
Mfg#:
4G0407253B
Ships in 1-2 days
5% off MSRP

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

$988.99

This product was last offered at the strikethrough price on
06-18-2026

$938.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3560811 - S17D35R13ZNNI - Ball Seat Wheel Bolt - 14x1.5x35mm - Priced Each - 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#:
3560811
Mfg#:
S17D35R13ZNNI
In Stock
ON SALE! SAVE 25%
$9.99

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

$7.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2855865 - 012602ecs01 - Carbon Fiber Mirror Cap Set - Audi B5/C5/D2 - Upgrade your exterior look - ECS - Audi

Upgrade your exterior look affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2855865
Mfg#:
012602ECS01
Ships on Oct 7, 2026
$351.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2972814 - 06E903341H - Supercharger Belt Idler Pulley - Tracks the supercharger belt properly - Hamburg Tech - Audi

Tracks the supercharger belt properly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2972814
Mfg#:
06E903341H
In Stock
$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4739118 - EP24-977 - 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 Volkswagen Porsche

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!

For use with the Stage 4 Big Brake Kit

Brand:
ECS - Corporate Logo
ES#:
4739118
Mfg#:
EP24-977
In Stock
ON SALE! SAVE 20%
$184.99

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

$147.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#517838 - DP4680R -  Rear YellowStuff Performance Brake Pad Set - EBC's premium sport street pad that offers high friction levels and heat fade resistance - EBC - Audi Volkswagen

EBC's premium sport street pad that offers high friction levels and heat fade resistance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
EBC - Corporate Logo
ES#:
517838
Mfg#:
DP4680R
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.

$109.99

This product was last offered at the strikethrough price on
06-18-2026

$103.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4019633 - 8K0201511A - Fuel Filter - Hengst - Audi
ECS Tuning recommends this product.

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#:
4019633
Mfg#:
8K0201511A
In Stock
$71.99 USD
Free Shipping
on orders $49 and up

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