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Audi S4 Most Popular Parts

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Ultimate Supercharger Service Kit

ES#4766247 - 06E145621SAF2KT - Ultimate Supercharger Service Kit - Fix all possible coolant leaks for your 3.0T in one click! - Assembled By ECS - Audi

Fix all possible coolant leaks for your 3.0T in one click! 10X Entries Into Our F80 M3 Sweepstakes
Fits from the 2013 model year (facelift)

Brand:
Assembled By ECS - Corporate Logo
ES#:
4766247
Mfg#:
06E145621SAF2KT
Ships in 4 Business Days
ON SALE! SAVE 14%
$882.44

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

$760.12 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Dynamic+ Lowering Springs

ES#3491530 - 034-404-1005 - Dynamic+ Lowering Springs - Engineered to improve handling and deliver superb ride quality! - 034Motorsport - Audi

Engineered to improve handling and deliver superb ride quality! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3491530
Mfg#:
034-404-1005
In Stock
$345.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 S4 3.0T Center X-Pipe

ES#3521607 - 024365ecs01KT - B9 S4 3.0T Center X-Pipe - Sound great and save weight! Eliminate the center resonator on your OE system for a more aggressive exhaust note - ECS - Audi

Sound great and save weight! Eliminate the center resonator on your OE system for a more aggressive exhaust note 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3521607
Mfg#:
024365ECS01KT
In Stock
ON SALE! SAVE 25%
$438.99

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

$329.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Charcoal Lined Cabin Air Filter

ES#3448685 - 4M0819439A - Charcoal Lined Cabin Air Filter - The activated charcoal filters odor from reaching the cabin - Hengst - Audi Porsche
ECS Tuning recommends this product.

The activated charcoal filters odor from reaching the cabin 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
3448685
Mfg#:
4M0819439A
In Stock
$24.99

This product was last offered at the strikethrough price on
10-12-2026

$24.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Aero Wiper Blade Set

ES#2739371 - 3397007297 - Front Aero Wiper Blade Set - Clear up streaks & improve rainy day visibility - Bosch - Audi Volkswagen Porsche
ECS Tuning recommends this product.

Clear up streaks & improve rainy day visibility We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2739371
Mfg#:
3397007297
In Stock
$24.99

This product was last offered at the strikethrough price on
08-20-2026

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Dynamic+ Sway Bar Kit

ES#4643528 - 034-402-1035 - 034Motorsport Dynamic+ Sway Bar Kit - Designed to reduce body roll, improve turn-in, reduce understeer and enhance steering feel - 034Motorsport - Audi

Designed to reduce body roll, improve turn-in, reduce understeer and enhance steering feel 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4643528
Mfg#:
034-402-1035
In Stock
$717.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/Pressure Control Valve (PCV)

ES#4620647 - 06E103547AC - Oil Separator/Pressure Control Valve (PCV) - Located beneath the supercharger compressor - Hengst - Audi Porsche
ECS Tuning recommends this product.

Located beneath the supercharger compressor 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Up to the 2012 model year

Brand:
Hengst - Corporate Logo
ES#:
4620647
Mfg#:
06E103547AC
In Stock
$130.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cup Kit/Coilover Installation Kit

ES#2762762 - 8K0412377CKT5 - Cup Kit/Coilover Installation Kit - Includes all necessary items for a quick and easy install. - Assembled By ECS - Audi

Includes all necessary items for a quick and easy install. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2762762
Mfg#:
8K0412377CKT5
In Stock
ON SALE! SAVE 13%
$337.00

This product was last offered at the strikethrough price on
04-28-2026

$293.15 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heat Exchanger Kit - Bolt-On - Performance Multi-Pass - Black

ES#4442371 - PMPHX30T40TBLACK - Heat Exchanger Kit - Bolt-On - Performance Multi-Pass - Black - Installation of this kit is now easier than ever, without the need of removing the crash bar to drill holes for bracket mounting. - JH Motorsports - Audi

Installation of this kit is now easier than ever, without the need of removing the crash bar to drill holes for bracket mounting.

Brand:
JH Motorsports - Corporate Logo
ES#:
4442371
Mfg#:
PMPHX30T40TBLACK
In Stock
$699.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Oil Separator/Pressure Control Valve (PCV) Service Kit

ES#4782917 - 06M129041KT - Ultimate Oil Separator/Pressure Control Valve (PCV) Service Kit - Comprehensive kit includes the PCV, Breather lines, and all required hardware - Genuine Volkswagen Audi - Audi

Comprehensive kit includes the PCV, Breather lines, and all required hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4782917
Mfg#:
06M129041KT
In Stock
$328.99

This product was last offered at the strikethrough price on
08-14-2026

$316.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B16 PSS9 Suspension System

ES#4420 - 48-086165 - 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! 10X Entries Into Our F80 M3 Sweepstakes
2X Entries For Our Spin To Win Sweepstakes!

Brand:
Bilstein - Corporate Logo
ES#:
4420
Mfg#:
48-086165
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.

$3423.00

This product was last offered at the strikethrough price on
10-18-2026

$2369.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Supercharger Service Kit +

ES#4766224 - 06E145621S3KT - Ultimate Supercharger Service Kit + - Fix all possible coolant leaks for your 3.0T in one click! - Genuine Volkswagen Audi - Audi

Fix all possible coolant leaks for your 3.0T in one click! Up to the 2012 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4766224
Mfg#:
06E145621S3KT
Ships in 3 Business Days
$2517.16

This product was last offered at the strikethrough price on
08-24-2026

$2349.28 USD
This product is lifetime replacement eligible Partial Replacement

Audi B8.5 S4 / A4 S-Line Carbon Fiber Rear Diffuser

ES#3085916 - 018359ECS01A - Audi B8.5 S4 / A4 S-Line Carbon Fiber Rear Diffuser - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling 10X Entries Into Our F80 M3 Sweepstakes

From the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
3085916
Mfg#:
018359ECS01A
In Stock
ON SALE! SAVE 10%
$1019.99

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

$917.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B12 Pro-Kit Suspension System

ES#2983800 - 46-183330 - Bilstein B12 Pro-Kit Suspension System - Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Audi

Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
For Vehicles Without Electronic Suspension
Lowers 35mm front, 30mm rear

Brand:
Bilstein - Corporate Logo
ES#:
2983800
Mfg#:
46-183330
In Stock
17% off MSRP

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

$1155.00

This product was last offered at the strikethrough price on
10-18-2026

$959.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Kit - Ultimate

ES#2992123 - 079109469ALKT1 - Timing Chain Kit - Ultimate - Includes new tensioners, guide rails, chains, & securing hardware to service your timing chain - Assembled By ECS - Audi
ECS Tuning recommends this product.

Includes new tensioners, guide rails, chains, & securing hardware to service your timing chain 10X Entries Into Our F80 M3 Sweepstakes
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2992123
Mfg#:
079109469ALKT1
Ships in 10 Business Days
ON SALE! SAVE 23%
$878.99

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

$674.60 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Synthetic Gear Oil 75w90 - 1 Liter

ES#4766 - G052145S2 - Synthetic Gear Oil 75w90 - 1 Liter - Keep your gears quiet and smooth with new fluid - Genuine Volkswagen Audi - Audi Volkswagen

Keep your gears quiet and smooth with new fluid 1.9L needed for drain & refill

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4766
Mfg#:
G052145S2
In Stock
$35.79 USD
Free Shipping
on orders $49 and up

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