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Audi S4 Most Popular Parts

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ES#3411957 - 019207ecs01KT - Audi B9 A4/S4/A5 Engine Street Shield Aluminum Skid Plate - Protect your vehicle's plastic oil pan with this 4mm thick aluminum skid plate - ECS - Audi

Protect your vehicle's plastic oil pan 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!

Brand:
ECS - Corporate Logo
ES#:
3411957
Mfg#:
019207ECS01KT
Ships in 1 Business Day
$383.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4668331 - 4H0615601Q-XS - Rear V5 Drilled & Slotted Brake Rotors - Set (330x22) - Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection. - ECS - Audi

Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4668331
Mfg#:
4H0615601Q-XS
In Stock
ON SALE!
$296.99

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

$288.08 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4698595 - 06m103515fKT - Basic Oil Separator/Pressure Control Valve (PCV) Kit - Replace your leaking PCV - Genuine Volkswagen Audi - Audi

Replace your leaking PCV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4698595
Mfg#:
06M103515FKT
In Stock
$167.99

This product was last offered at the strikethrough price on
02-24-2026

$152.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4871642 - GC555401QDSP - High Performance Genuine Engine Oil (5w-40) - 1 Quart - Meets Volkswagen & Audi 502.00 / 505.00 specification - Genuine Volkswagen Audi - Audi Volkswagen

Meets Volkswagen & Audi 502.00 / 505.00 specification affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4871642
Mfg#:
GC555401QDSP
In Stock
$14.06 USD
Free Shipping
on orders $49 and up
ES#4623625 - 034-106-6054 - EA839 High Pressure Fuel Pump Piston Upgrade Kit - Unlock up to 37% more flow over the factory high pressure fuel pump! - 034Motorsport - Audi Porsche

Unlock up to 37% more flow over the factory high pressure fuel pump! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4623625
Mfg#:
034-106-6054
In Stock
$396.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3247906 - 024249ECS01 - Carbon Fiber ECU Cover - Audi B9 S4/S5/RS5 - Compliment your engine bay and hide away the exposed ECU - ECS - Audi

Compliment your engine bay and hide away the exposed ECU affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3247906
Mfg#:
024249ECS01
In Stock
ON SALE! SAVE 20%
$234.99

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

$187.86 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#251835 - ECS10724KT - Jack Pad Adapter Kit - Having trouble finding a jack point? ECS has a solution for you - Assembled By ECS - Audi Volkswagen

Having trouble finding a jack point? ECS has a solution for you 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#:
251835
Mfg#:
ECS10724KT
In Stock
ON SALE! SAVE 10%
$129.99

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

$116.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3179078 - 06E145621S - Supercharger Intercooler Core - Priced Each - Internal charge air cooler in the supercharger compressor - Genuine Volkswagen Audi - Audi

Internal charge air cooler in the supercharger compressor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3179078
Mfg#:
06E145621S
In Stock
$653.99

This product was last offered at the strikethrough price on
04-19-2026

$521.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3619009 - 116 050 0223/HD - Complete High Durability Front Control Arm Kit (1160500223HD) - Keep your suspension in top shape - Includes all front control arms, ball joints, and hardware - Meyle HD - Audi
ECS Tuning recommends this product.

Keep your suspension in top shape - Includes all front control arms, ball joints, and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Fits models from production date 11/3/2009 up through 6/20/2011 (M14 Ball Joints) - Please verify existing prior to ordering

Brand:
Meyle HD - Corporate Logo
ES#:
3619009
Mfg#:
116 050 0223/HD
In Stock
ON SALE! SAVE 10%
$899.99

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

$809.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4475572 - 034-106-6052 - High Pressure Fuel Pump Piston Upgrade Kit  - Yields up to 50% Flow Increase Over the Factory High Pressure Fuel Pump! - 034Motorsport - Audi

Yields up to 50% Flow Increase Over the Factory High Pressure Fuel Pump! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4475572
Mfg#:
034-106-6052
In Stock
$390.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3419174 - 07L127026AK - High Pressure Fuel Pump - Located on the left cylinder head - Hitachi - Audi Volkswagen

Located on the left cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hitachi - Corporate Logo
ES#:
3419174
Mfg#:
07L127026AK
In Stock at Vendor
$851.99

This product was last offered at the strikethrough price on
04-30-2026

$717.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4487400 - 06E103547AHKT - Ultimate Pressure Control Valve (PCV) Service Kit - Comprehensive kit includes new oil separator, supercharger gaskets, vent tube o-rings, and ECS coolant bleeder screw kit. - Assembled By ECS - Audi
ECS Tuning recommends this product.

Comprehensive kit includes new oil separator, supercharger gaskets, vent tube o-rings, and ECS coolant bleeder screw kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits from the 2013 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
4487400
Mfg#:
06E103547AHKT
In Stock
ON SALE! SAVE 14%
$346.99

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

$297.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#2713038 - 030-9 - 18" Style 030 Wheels - Set Of Four - 18x8 ET35 5x112 57.1CB - Matte Black - Alzor - Audi Volkswagen

18x8 ET35 5x112 57.1CB - Matte Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Alzor - Corporate Logo
ES#:
2713038
Mfg#:
030-9
In Stock
ON SALE! SAVE 25%
$1176.99

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

$882.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4057315 - 023938ecs02KT1 - Front & Rear Performance Brake Service Kit - 2-Piece  - Comprehensive kit includes 2-piece rotors, pads, sensors, and set screws - Upgrade your brake system with ECS 2-piece rotors and EBC Yellow Brake Pads! - Assembled By ECS - Audi

Comprehensive kit includes 2-piece rotors, pads, sensors, and set screws - Upgrade your brake system with ECS 2-piece rotors and EBC Yellow Brake Pads! 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#:
4057315
Mfg#:
023938ECS02KT1
In Stock
ON SALE!
$1949.99

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

$1889.54 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2593713 - 48-105958 - Bilstein B16 PSS9 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#:
2593713
Mfg#:
48-105958
In Stock
31% off MSRP

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

$3467.00

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

$2399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3619834 - 026861ECS01 - Audi B8/B8.5 S4 Trunk Spoiler - Gloss Black - Add some aggressive styling to your Audi! - ECS - Audi

Add some aggressive styling to your Audi! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3619834
Mfg#:
026861ECS01
In Stock
ON SALE! SAVE 57%
$321.99

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

$140.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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