Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

Audi B9 S4 Quattro 3.0T

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle Audi B9 S4 Quattro 3.0T
Your Vehicle Audi B9 S4 Quattro 3.0T
Change Clear

Audi B9 S4 Quattro 3.0T Most Popular Parts

Sort By
Filter By
Return to Top

BR Series Coilover Suspension Kit - B9 Audi A4/S4

ES#4872510 - S-35-BR - BR Series Coilover Suspension Kit - B9 Audi A4/S4 - Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 7/11/2016 with 53mm front strut body with factory Electronic Damping Control.

Brand:
BC Racing - Corporate Logo
ES#:
4872510
Mfg#:
S-35-BR
Ships on Aug 26, 2026
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Turbocharger Installation Kit

ES#4736499 - 06M133026AKT - Ultimate Turbocharger Installation Kit - All hardware required for a successful install utilizing genuine components. - Assembled By ECS - Audi

All hardware required for a successful install utilizing genuine components. 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#:
4736499
Mfg#:
06M133026AKT
Ships in 1 day
ON SALE!
$240.99

This product was last offered at the strikethrough price on
03-05-2026

$237.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 20mm

ES#3546625 - 034-604-7007 - 034Motorsport Wheel Spacer Pair - 20mm - Increase track width to improve handling, allow for more brake clearance, and help achieve a flush wheel/tire fitment - 034Motorsport - Audi

Increase track width to improve handling, allow for more brake clearance, and help achieve a flush wheel/tire fitment affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3546625
Mfg#:
034-604-7007
In Stock
ON SALE! SAVE 10%
$125.00

This product was last offered at the strikethrough price on
06-28-2026

$112.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front & Rear Cup Kit/Coilover Installation Kit

ES#3691725 - 8w0412377AKT1 - Front & Rear Cup Kit/Coilover Installation Kit - Includes front & rear shock/strut mounts and associated hardware for a complete suspension installation - Genuine Volkswagen Audi - Audi

Includes front & rear shock/strut mounts and associated hardware for a complete suspension installation affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with closed loop suspension (Audi Drive Select / Adaptive suspension - PR-Code 1BL)

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3691725
Mfg#:
8W0412377AKT1
Ships in 3 Business Days
$597.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silicone Turbo Inlet Hose - Audi B9 S4/S5

ES#3420204 - 024360ECS01 - Silicone Turbo Inlet Hose - Audi B9 S4/S5 - Flexible silicone smooths the intake tract & hinders collapsing. The ultimate in durability! - ECS - Audi

Flexible silicone smooths the intake tract & hinders collapsing. The ultimate in durability! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3420204
Mfg#:
024360ECS01
In Stock
ON SALE! SAVE 25%
$97.99

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

$73.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front & Rear Performance Brake Service Kit - Tru-Float Scalloped

ES#4781162 - 023940ECS2KT - Front & Rear Performance Brake Service Kit - Tru-Float Scalloped - Comprehensive kit includes Tru-Float rotors, pads, sensors, and set screws - Upgrade your brake system with ECS 2-piece Tru-Float scalloped rotors and ECS EP24 Enthusiast Performance Brake Pads! - Assembled By ECS - Audi

Comprehensive kit includes Tru-Float rotors, pads, sensors, and set screws - Upgrade your brake system with ECS 2-piece Tru-Float scalloped rotors and ECS EP24 Enthusiast Performance 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#:
4781162
Mfg#:
023940ECS2KT
In Stock
ON SALE!
$2420.99

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

$2346.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

20" ZTF-R01 Forged Wheels - Set Of Four

ES#4472409 - 034-604-0009KT - 20" ZTF-R01 Forged Wheels - Set Of Four - 20"x10" ET30 CB66.6mm 5x112 - Anthracite - 034Motorsport - Audi

20"x10" ET30 CB66.6mm 5x112 - Anthracite affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4472409
Mfg#:
034-604-0009KT
Ships in 2 Business Days
ON SALE! SAVE 22%
$3003.43

This product was last offered at the strikethrough price on
06-28-2026

$2340.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Liqui Moly Top Tec - Oil Service Kit (0w-20) - With ECS Billet Oil Filter Housing

ES#4755719 - 20236KT2 - Liqui Moly Top Tec - Oil Service Kit (0w-20) - With ECS Billet Oil Filter Housing - Includes LiquiMoly Top Tec 6200 508.00/509.00 0W20 oil, Hengst Filter, drain plug, and washer for a complete oil service. Includes a heavy duty ECS Billet Aluminum Oil Filter Housing for stress-free servicing and motoring. - Assembled By ECS - Audi

Includes LiquiMoly Top Tec 6200 508.00/509.00 0W20 oil, Hengst Filter, drain plug, and washer for a complete oil service. Includes a heavy duty ECS Billet Aluminum Oil Filter Housing for stress-free servicing and motoring. 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#:
4755719
Mfg#:
20236KT2
In Stock
ON SALE!
$260.99

This product was last offered at the strikethrough price on
06-19-2026

$259.46 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Rear Brake Service Kit

ES#4846192 - 4M0615301AN8KT3 - Rear Brake Service Kit - Featuring Zimmermann Cross-Drilled rotors and ECS DD23 "Daily Driver" ceramic pads - Includes set screws, brake wear sensors, and silicone brake lubricant - Assembled By ECS - Audi

Featuring Zimmermann Cross-Drilled rotors and ECS DD23 "Daily Driver" ceramic pads - Includes set screws, brake wear sensors, and silicone brake lubricant 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#:
4846192
Mfg#:
4M0615301AN8KT3
In Stock
ON SALE! SAVE 20%
$486.99

This product was last offered at the strikethrough price on
04-13-2026

$387.96 USD
This product is lifetime replacement eligible Lifetime Replacement

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

ES#3568762 - 002411ecs02aKT8 - Wheel Spacer & Bolt Kit - 10mm With Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
3568762
Mfg#:
002411ECS02AKT8
In Stock
ON SALE! SAVE 15%
$160.99

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

$136.84 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Liqui Moly Top Tec - 40k Service Kit (0w-20)

ES#4773057 - 8W0133843KT - Liqui Moly Top Tec - 40k Service Kit (0w-20) - Everything you need to perform the recommended 40k mile service - Assembled By ECS - Audi

Everything you need to perform the recommended 40k mile service 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#:
4773057
Mfg#:
8W0133843KT
In Stock
ON SALE!
$289.99

This product was last offered at the strikethrough price on
06-19-2026

$288.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

X-Clear Driveshaft Tunnel Brace

ES#4381928 - 034-603-0029 - X-Clear Driveshaft Tunnel Brace - Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration. - 034Motorsport - Audi

Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4381928
Mfg#:
034-603-0029
In Stock
ON SALE! SAVE 10%
$151.00

This product was last offered at the strikethrough price on
06-28-2026

$135.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Aero Wiper Blade Set

ES#3030660 - 8W1998002 - Front Aero Wiper Blade Set - Clear up streaks & improve rainy day visibility - Genuine Volkswagen Audi - Audi

Clear up streaks & improve rainy day visibility affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3030660
Mfg#:
8W1998002
In Stock
9% off MSRP

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

$78.99

This product was last offered at the strikethrough price on
07-07-2026

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Performance Ceramic Brake Pad Set

ES#4000468 - HB865Z.620 - Front Performance Ceramic Brake Pad Set - Ceramic composite developed to meet ultra-low dust and noise requirements. - Hawk - Audi

Ceramic composite developed to meet ultra-low dust and noise requirements. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hawk - Corporate Logo
ES#:
4000468
Mfg#:
HB865Z.620
Ships on Jul 23, 2026
Auto Notify
$208.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

19" Rohana RFX17 Wheels - Set Of Four

ES#4809730 - FX1718512GB35KT - 19" Rohana RFX17 Wheels - Set Of Four - 19x8.5 ET35 5x112 66.6CB - Gloss Black - Rohana Wheels - Audi BMW Mercedes Benz

19x8.5 ET35 5x112 66.6CB - Gloss Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rohana Wheels - Corporate Logo
ES#:
4809730
Mfg#:
FX1718512GB35KT
Ships on Jul 27, 2026
$2272.00 USD
This product is lifetime replacement eligible Lifetime Replacement

19" Rohana RFX11 Wheels - Set Of Four

ES#3676975 - fx1119855112KT16 - 19" Rohana RFX11 Wheels - Set Of Four - 19x8.5 ET42 5x112 66.6CB - Gloss Black - Rohana Wheels - Audi BMW Mercedes Benz MINI

19x8.5 ET42 5x112 66.6CB - Gloss Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rohana Wheels - Corporate Logo
ES#:
3676975
Mfg#:
FX1119855112KT16
Ships on Jul 27, 2026
$2272.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings