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

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
affirm financing terms & conditions
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

Car Interior Cleaner - 500 ml

ES#4017314 - 20392 - Car Interior Cleaner - 500 ml - Perfect to get your interior looking like new! - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Perfect to get your interior looking like new! 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#:
4017314
Mfg#:
20392
Ships on Aug 3, 2026
Auto Notify
$12.00 USD
Free Shipping
on orders $49 and up

IE Remove Before Boost Key Chain

ES#4882978 - IEGRUU33 - IE Remove Before Boost Key Chain - Hang it from your keys, rear view, zipper ends, jacket, or any where you might need to check before dropping the throttle. - Integrated Engineering - Audi Volkswagen Porsche

Hang it from your keys, rear view, zipper ends, jacket, or any where you might need to check before dropping the throttle. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4882978
Mfg#:
IEGRUU33
In Stock
ON SALE! SAVE 10%
$4.99

This product was last offered at the strikethrough price on
06-25-2026

$4.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Element Extinguisher Roll Cage Mount Package - 1.625 Inch

ES#4007085 - FE23.25.26-1.625 - Element Extinguisher Roll Cage Mount Package - 1.625 Inch - Everything you need to mount an E50 Element Fire Extinguisher to your roll bar, including the extinguisher itself! - Rennline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Everything you need to mount an E50 Element Fire Extinguisher to your roll bar, including the extinguisher itself! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rennline - Corporate Logo
ES#:
4007085
Mfg#:
FE23.25.26-1.625
Ships in 5 Business Days
$160.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Locking Spiked Lug Nuts - Red

ES#3176129 - 20PC60REDSPKLKM - Locking Spiked Lug Nuts - Red - Set of 20 Red Sickspeed Lug Nuts and spikes. - Sickspeed - Audi BMW Volkswagen

Set of 20 Red Sickspeed Lug Nuts and spikes. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Sickspeed - Corporate Logo
ES#:
3176129
Mfg#:
20PC60REDSPKLKM
In Stock
$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

HP Tuners PROLINK+ Cable

ES#4840618 - H021-002-06 - HP Tuners PROLINK+ Cable - Get access to even more vehicle data using PROLINK+ to wire in up to 2x analog signals and 1x CAN bus signal. Compatible with MPVI2+ and MPVI3 interfaces. - HP Tuners - Audi Volkswagen Mercedes Benz

Get access to even more vehicle data using PROLINK+ to wire in up to 2x analog signals and 1x CAN bus signal. Compatible with MPVI2+ and MPVI3 interfaces. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For use with HP Tuners MPVI2+ and MPVI3 interfaces only.

Brand:
HP Tuners - Corporate Logo
ES#:
4840618
Mfg#:
H021-002-06
Back Ordered
$60.99

This product was last offered at the strikethrough price on
05-12-2026

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

THINKEASY Battery Tester

ES#4745611 - 3.03.04.0001 - THINKEASY Battery Tester - Car Battery Tester with Bluetooth 5.0 + APP Automotive Alternator Tester - THINKCAR - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Car Battery Tester with Bluetooth 5.0 + APP Automotive Alternator Tester affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
THINKCAR - Corporate Logo
ES#:
4745611
Mfg#:
3.03.04.0001
Ships in 1 Business Day
$59.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Child Car Seat Protector - Black

ES#5426339 - 81CSBP01BK - Child Car Seat Protector - Black - Protect your seats from spills, scuffs, and compression damage while keeping your childs car seat secure and crash-tested safe with the durable, non-slip WeatherTech Child Car Seat Protector. - WeatherTech - Audi Volkswagen Mercedes Benz MINI Porsche

Protect your seats from spills, scuffs, and compression damage while keeping your child’s car seat secure and crash-tested safe with the durable, non-slip WeatherTech Child Car Seat Protector. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
WeatherTech - Corporate Logo
ES#:
5426339
Mfg#:
81CSBP01BK
Ships in 2 Business Days
$59.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

8-16mm Adjustable Hose Clamp - Priced Each

ES#2766001 - 5574K12 - 8-16mm Adjustable Hose Clamp - Priced Each - Install new clamps to stay leak free. 8-16mm - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Install new clamps to stay leak free. 8-16mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2766001
Mfg#:
5574K12
In Stock
ON SALE!
$3.99

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

$3.87 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Nozzle - 10GPH

ES#4376610 - SN0-N1000 - Water/Methanol Nozzle - 10GPH - Snow Performance Hyper-Sonic water-methanol injection nozzle - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Snow Performance Hyper-Sonic water-methanol injection nozzle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4376610
Mfg#:
SN0-N1000
In Stock
$31.99 USD
Free Shipping
on orders $49 and up

Arnott Airline Repair Kit

ES#4940878 - K-5664 - Arnott Airline Repair Kit - 4x 4mm PTC Union, 3m x 4mm Tubing, 1x Tubing Cutter - Arnott - Audi BMW Volkswagen Mercedes Benz Porsche

4x 4mm PTC Union, 3m x 4mm Tubing, 1x Tubing Cutter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Arnott - Corporate Logo
ES#:
4940878
Mfg#:
K-5664
Ships in 1 Business Day
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Titanium Exhaust Wrap - 2" X 25'

ES#3022276 - HEA-WRAPKIT-25 - Titanium Exhaust Wrap - 2" X 25' - Designed to handle continuous temperatures up to 1,800F - Prosport Performance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Designed to handle continuous temperatures up to 1,800°F affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3022276
Mfg#:
HEA-WRAPKIT-25
Ships in 1 Business Day
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PFM Terry Weave Towel - Set of 2

ES#4164146 - 55586 - PFM Terry Weave Towel - Set of 2 - Join the 'Pure Freakin' Magic' revolution! Become a detailing superhero with the most absorbent towel you'll ever use. - Griot's - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Join the 'Pure Freakin' Magic' revolution! Become a detailing superhero with the most absorbent towel you'll ever use. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Griot's - Corporate Logo
ES#:
4164146
Mfg#:
55586
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

GUMMI-PFLEGE

ES#3141413 - 83192449390 - GUMMI-PFLEGE - Keep your vehicles trim looking showroom fresh! - Genuine MINI - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Keep your vehicles trim looking showroom fresh! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
3141413
Mfg#:
83192449390
Ships in 5 Business Days
6% off MSRP

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

$15.99

This product was last offered at the strikethrough price on
06-25-2026

$14.99 USD
Free Shipping
on orders $49 and up

Thule Hitch Mount Bike Carrier Attachment - 4 Bike Capacity

ES#4148510 - 3CN071105A - Thule Hitch Mount Bike Carrier Attachment - 4 Bike Capacity - Securely attaches to a standard 2" tow hitch - Genuine Volkswagen Audi - Audi Volkswagen

Securely attaches to a standard 2" tow hitch affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4148510
Mfg#:
3CN071105A
Ships in 1 day
4% off MSRP

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

$500.00

This product was last offered at the strikethrough price on
06-25-2026

$478.99 USD
This product is lifetime replacement eligible Lifetime Replacement

MTX-L PLUS Digital Wideband Air/Fuel Ratio Gauge

ES#4004696 - inn3918 - MTX-L PLUS Digital Wideband Air/Fuel Ratio Gauge - Features patented DirectDigital™ technology and all-new Advanced Sensor Control - Receives feedback from the sensor more frequently and optimizes heater control - Innovate Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Features patented DirectDigital™ technology and all-new Advanced Sensor Control - Receives feedback from the sensor more frequently and optimizes heater control affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Innovate Motorsports - Corporate Logo
ES#:
4004696
Mfg#:
INN3918
In Stock at Vendor
17% off MSRP

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

$287.99

This product was last offered at the strikethrough price on
06-25-2026

$239.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTEK SMARTPASS 120S

ES#4492943 - 40-289 - CTEK SMARTPASS 120S - SMARTPASS 120S charges and supplies the service battery and equipment with 120A - CTEK - Audi BMW Volkswagen Mercedes Benz MINI Porsche

SMARTPASS 120S charges and supplies the service battery and equipment with 120A affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTEK - Corporate Logo
ES#:
4492943
Mfg#:
40-289
Back Ordered
$477.99 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 ECS Tuning is part of Enthusiast Auto Holdings