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

Menu

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

No Vehicle selected
Please select your vehicle below.

    • 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
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi S4 Most Popular Parts

Sort By
Filter By
Return to Top

Unitronic Performance Software - Stage 1+

ES#4376314 - 30T-EA839-1+ - Unitronic Performance Software - Stage 1+ - Gain up to 100 horsepower and 112 lb-ft of torque on 93 Octane - Unitronic - Audi

Gain up to 100 horsepower and 112 lb-ft of torque on 93 Octane This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4376314
Mfg#:
30T-EA839-1+
In Stock
$900.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Charge Pipe Kit

This includes 3 reinforced silicone hoses, and 1 aluminum charge air tube. For vehicles that have the Wagner Competition Intercooler

Brand:
Wagner Tuning - Corporate Logo
ES#:
4017656
Mfg#:
210001120
Ships in 2 Business Days
$450.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR 3.0T Stage 1 ECU Upgrade

ES#4057386 - DPP-30T-MG1 - APR 3.0T Stage 1 ECU Upgrade - Expect massive gains with 431-480 HP with 467-549 FT-LBS of torque on tap, depending on octane, from this simple software upgrade! - APR - Audi

Expect massive gains with 431-480 HP with 467-549 FT-LBS of torque on tap, depending on octane, from this simple software upgrade! Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
4057386
Mfg#:
DPP-30T-MG1
In Stock
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear BBK (Big Brake Kit), JHM 330mm

Finally a low cost 330mm Rear Big Brake Kit

Brand:
JH Motorsports - Corporate Logo
ES#:
4046031
Mfg#:
BBK-1023X330X22
Ships on Nov 23, 2026
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front HPS Performance Brake Pad Set

ES#5649 - hb501f.625 - Front HPS Performance Brake Pad Set - Composite compound, all-around pads - Hawk - Audi Volkswagen Porsche

Composite compound, all-around pads For use with the Stage 4 Big Brake Kit

Brand:
Hawk - Corporate Logo
ES#:
5649
Mfg#:
HB501F.625
Back Ordered
10% off MSRP

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

$248.99

This product was last offered at the strikethrough price on
11-06-2026

$224.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount

ES#4810431 - 8K0399151DB - Transmission Mount - Reduce excessive drivetrain vibrations - Corteco - Audi Porsche

Reduce excessive drivetrain vibrations

Brand:
Corteco - Corporate Logo
ES#:
4810431
Mfg#:
8K0399151DB
Ships in 2 Business Days
$85.99

This product was last offered at the strikethrough price on
06-04-2026

$74.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt

ES#4661016 - 5PK1105 - Performance Kevlar Reinforced Accessory Belt - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
4661016
Mfg#:
5PK1105
In Stock
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DOT 4 Low Viscosity Brake Fluid - 1 Liter

ES#2862519 - 1224116 - DOT 4 Low Viscosity Brake Fluid - 1 Liter - Special brake fluid of highest DOT 4 performance levels and extremely low viscosity at cold temperatures. - Pentosin - Audi BMW Volkswagen MINI Porsche

Special brake fluid of highest DOT 4 performance levels and extremely low viscosity at cold temperatures.

Brand:
Pentosin - Corporate Logo
ES#:
2862519
Mfg#:
1224116
Back Ordered
$24.99 USD
Free Shipping
on orders $49 and up

Sound Enhancing Resonator Kit

ES#4022504 - 8W0071904 - Sound Enhancing Resonator Kit - Genuine Audi exhaust upgrade to make your Audi sound the way it was intended! - Genuine Volkswagen Audi - Audi

Genuine Audi exhaust upgrade to make your Audi sound the way it was intended!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4022504
Mfg#:
8W0071904
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.

$940.99

This product was last offered at the strikethrough price on
10-26-2026

$896.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Heated Blind Spot Mirror Set

ES#2501056 - 8E0857536H535HKI - Heated Blind Spot Mirror Set - Eliminate your blind spots - Genuine European Volkswagen Audi - Audi

Eliminate your blind spots For vehicles with automatic anti-dazzle

Brand:
Genuine European Volkswagen Audi - Corporate Logo
ES#:
2501056
Mfg#:
8E0857536H535HKI
Ships on Apr 30, 2027
$896.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Pulley Upgrade Kit

ES#3082216 - CTS-HW-0133 - Supercharger Pulley Upgrade Kit - Software & installation kit not included in this upgrade kit - CTS - Audi Porsche

Software & installation kit not included in this upgrade kit *For models with press-on style supercharger pulleys - 3.0 TFSI Performance Software is sold separately a

Brand:
CTS - Corporate Logo
ES#:
3082216
Mfg#:
CTS-HW-0133
Ships in 6 Business Days
ON SALE! SAVE 20%
$159.99

This product was last offered at the strikethrough price on
09-29-2026

$127.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Side Marker Housing - Priced Each

ES#441051 - 8E0949127 - Side Marker Housing - Priced Each - Fits left and right side - Genuine Volkswagen Audi - Audi

Fits left and right side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
441051
Mfg#:
8E0949127
Ships in 3 Business Days
26% off MSRP

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

$37.99

This product was last offered at the strikethrough price on
08-04-2026

$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Handling Packages - Stage 1

ES#4877107 - 034-4ZZ-0024-DSO - 034Motorsport Handling Packages - Stage 1 - Curated handling bundle designed to eliminate the factory wheel gap, vastly reduce understeer, and transform the cornering capabilities of your 3.0 TFSI-powered B8 chassis without sacrificing daily driving comfort. - 034Motorsport - Audi

Curated handling bundle designed to eliminate the factory wheel gap, vastly reduce understeer, and transform the cornering capabilities of your 3.0 TFSI-powered B8 chassis without sacrificing daily driving comfort. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4877107
Mfg#:
034-4ZZ-0024-DSO
Back Ordered
$894.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sunroof Wind Deflector

ES#2796445 - 4G5877651 - Sunroof Wind Deflector - Raises when the sunroof is open to reduce wind noise - Genuine Volkswagen Audi - Audi

Raises when the sunroof is open to reduce wind noise

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2796445
Mfg#:
4G5877651
In Stock
13% off MSRP

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

$538.99

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

$466.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Let us help you find the parts that fit your Audi

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 Your Privacy Choices Cookie Policy ECS Tuning is part of Enthusiast Auto Holdings