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Audi S4 Most Popular Parts

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Front & Rear Ceramic Brake Pad Set

ES#4159091 - 8w0698151nkt2KT - Front & Rear Ceramic Brake Pad Set - Ceramic set for quiet and smooth, low-dust stopping - Brembo - Audi

Ceramic set for quiet and smooth, low-dust stopping affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Brembo - Corporate Logo
ES#:
4159091
Mfg#:
8W0698151NKT2KT
In Stock
$184.99

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

$145.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Polymer Air Intake System - B9/B9.5 S4 & S5 3.0T

ES#4668695 - IEINCK5 - IE Polymer Air Intake System - B9/B9.5 S4 & S5 3.0T - Up to 19hp & 21ft-lbs over stock! - Integrated Engineering - Audi

Up to 19hp & 21ft-lbs over stock! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4668695
Mfg#:
IEINCK5
In Stock
$522.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B16 PSS10 Suspension System

ES#1844169 - 48-147231 - Bilstein B16 PSS10 Suspension System - Height adjustable suspension system offering adjustable compression and rebound to dial in for competition, comfort, or anywhere in between. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Audi

Height adjustable suspension system offering adjustable compression and rebound to dial in for competition, comfort, or anywhere in between. World-famous Bilstein quality with a limited lifetime warranty! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our Spin To Win Sweepstakes!

Brand:
Bilstein - Corporate Logo
ES#:
1844169
Mfg#:
48-147231
In Stock
$2699.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Street Shield Aluminum Skid Plate Kit

ES#2771912 - 003251ECS01AKT2 - ECS Tuning Street Shield Aluminum Skid Plate Kit - Protect your vehicle's oil pan & electronic steering rack with this 4mm thick aluminum skid plate - ECS - Audi

Protect your vehicle's oil pan & electronic steering rack with this 4mm thick aluminum skid plate affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits B8 chassis A4/S4/A5/S5 models from the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
2771912
Mfg#:
003251ECS01AKT2
In Stock
ON SALE!
$407.99

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

$387.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

8-Speed Automatic Transmission Service Kit - 7 Liters

ES#4845358 - 0D5398009CKITKT1 - 8-Speed Automatic Transmission Service Kit - 7 Liters - Includes the necessary filter, plug, gasket, and ATF fluid to service your transmission - ZF - Audi

Includes the necessary filter, plug, gasket, and ATF fluid to service your transmission We Price Match - Give Us A Call or Chat! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ZF - Corporate Logo
ES#:
4845358
Mfg#:
0D5398009CKITKT1
In Stock
$287.99 USD
Free Shipping
on orders $49 and up

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

ES#2748286 - 002411ECS03AKT3 - Wheel Spacer & Bolt Kit - 15mm With Black Ball Seat Bolts - Complete kit for two wheels, includes everything you need to install spacers - ECS - Audi

Complete kit for two wheels, includes everything you need to install spacers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits OEM wheels, or wheels that use OEM ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748286
Mfg#:
002411ECS03AKT3
Ships on Jul 9, 2026
Auto Notify
ON SALE! SAVE 30%
$169.19

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

$118.43 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Valve Cover Gasket Kit

ES#3662304 - 06b103831jKT - Complete Valve Cover Gasket Kit - Includes gaskets, hardware, and silicone sealant for an all-inclusive service kit - Assembled By ECS - Audi

Includes gaskets, hardware, and silicone sealant for an all-inclusive service kit 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#:
3662304
Mfg#:
06B103831JKT
In Stock
ON SALE! SAVE 18%
$241.99

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

$198.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Audi & VW Direct Injection Carbon Cleaning Kit - Level 2

ES#4000812 - 034-108-Z05KT - Audi & VW Direct Injection Carbon Cleaning Kit - Level 2 - Featuring 034 Motorsport direct injection port cleaning tool, walnut shell blast media (50lbs), and a Bav Auto V3 Media Blaster Tank - Assembled By ECS - Audi Volkswagen

Featuring 034 Motorsport direct injection port cleaning tool, walnut shell blast media (50lbs), and a Bav Auto V3 Media Blaster Tank 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#:
4000812
Mfg#:
034-108-Z05KT
Back Ordered
ON SALE! SAVE 18%
$342.99

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

$279.87 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Audi B8/B8.5 A4/S4 Flat Side Skirts - Gloss Black

ES#4045736 - 024716ecs02KT - Audi B8/B8.5 A4/S4 Flat Side Skirts - Gloss Black - Enhance your side profile with an aggressive look! - ECS - Audi

Enhance your side profile with an aggressive look! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4045736
Mfg#:
024716ECS02KT
In Stock
ON SALE! SAVE 27%
$339.89

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

$249.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Top Tec 4210 Synthetic Engine Oil (0w-30) - 5 Liter

ES#4339884 - 22158 - Top Tec 4210 Synthetic Engine Oil (0w-30) - 5 Liter - Fully synthetic, low-viscosity and low-SAPS motor oil developed for VAG 504.00/507.00 and BMW Longlife-04 specifications - Liqui-Moly - Audi BMW Volkswagen Porsche

Fully synthetic, low-viscosity and low-SAPS motor oil developed for VAG 504.00/507.00 and BMW Longlife-04 specifications 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!

Brand:
Liqui-Moly - Corporate Logo
ES#:
4339884
Mfg#:
22158
In Stock
ON SALE!
$52.95

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

$50.30 USD
Free Shipping
on orders $49 and up

Full Synthetic Engine Oil (0W-20) - 1 Quart

ES#4871645 - GC600201QDSP - Full Synthetic Engine Oil (0W-20) - 1 Quart - LongLife IV - SAE 0W-20 - 508.00/509.00 - Genuine Volkswagen Audi - Audi Volkswagen

LongLife IV - SAE 0W-20 - 508.00/509.00 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4871645
Mfg#:
GC600201QDSP
In Stock
$15.11 USD
Free Shipping
on orders $49 and up

Competition Intercooler With Charge Pipe Kit

ES#4418610 - 200001120.PIPE - Competition Intercooler With Charge Pipe Kit - The high performance intercooler core provides a 134% larger frontal area and 105% more volume compared to the stock mounted intercooler. Includes charge pipe kit. - Wagner Tuning - Audi

The high performance intercooler core provides a 134% larger frontal area and 105% more volume compared to the stock mounted intercooler. Includes charge pipe kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
**This kit is for US vehicle fitment**

Brand:
Wagner Tuning - Corporate Logo
ES#:
4418610
Mfg#:
200001120.PIPE
Ships on Jun 25, 2026
Auto Notify
$1140.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump And Thermostat Replacement Kit

ES#4690993 - 06m121115kKT - Water Pump And Thermostat Replacement Kit - Replace your Genuine thermostat and temp sensor with one kit! - Genuine Volkswagen Audi - Audi

Replace your Genuine thermostat and temp sensor with one kit! 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#:
4690993
Mfg#:
06M121115KKT
In Stock
$799.99

This product was last offered at the strikethrough price on
01-08-2026

$790.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Res-X Front Resonator Delete

ES#4845334 - 034-105-7060 - Res-X Front Resonator Delete - Unleash a throaty growl under hard acceleration! - 034Motorsport - Audi

Unleash a throaty growl under hard acceleration! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4845334
Mfg#:
034-105-7060
In Stock
$303.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Pressure Control Valve (PCV) Kit

ES#4487413 - 06E103547AC1KT - Ultimate Pressure Control Valve (PCV) Kit - Comprehensive kit includes everything to refresh your PCV system plus ECS coolant bleeder screw set. - Assembled By ECS - Audi
ECS Tuning recommends this product.

Comprehensive kit includes everything to refresh your PCV system plus ECS coolant bleeder screw set. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
4487413
Mfg#:
06E103547AC1KT
In Stock
ON SALE! SAVE 15%
$332.99

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

$284.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

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