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Audi S4 Most Popular Parts

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Full Density Line Front Control Arm Kit

ES#3199717 - 034-401-1045 - Full Density Line Front Control Arm Kit - Includes new control arms with Density Line control arm bushings, ball joints, and hardware - 034Motorsport - Audi

Includes new control arms with Density Line control arm bushings, ball joints, and hardware 2X Entries Into Our F80 M3 Sweepstakes
Fits models from production date 11/3/2009 (M14 Ball Joints) - Please verify existing prior to ordering

Brand:
034Motorsport - Corporate Logo
ES#:
3199717
Mfg#:
034-401-1045
In Stock
$964.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Damping Performance Coilover System - Audi B8/B8.5

ES#3478463 - 025412ECS01 - Adjustable Damping Performance Coilover System - Audi B8/B8.5 - Take control of your ride while going low with our sport-tuned coilover system! - ECS - Audi

Take control of your ride while going low with our sport-tuned coilover system! 10X Entries Into Our F80 M3 Sweepstakes
Vehicles equipped with Electronic Damping Control (EDC) will lose shock dampening and receive a system error code with coilover systems.

Brand:
ECS - Corporate Logo
ES#:
3478463
Mfg#:
025412ECS01
In Stock
ON SALE! SAVE 41%
$1178.99

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

$699.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8 S4/S5/Q5 3.0T Downpipes With Integrated X-Pipe

ES#4376068 - 012616la01KT - B8 S4/S5/Q5 3.0T Downpipes With Integrated X-Pipe - Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. - ECS - Audi

Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4376068
Mfg#:
012616LA01KT
In Stock
ON SALE! SAVE 30%
$611.99

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

$427.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

ES#3604824 - 20236KT - Liqui Moly Top Tec - Oil Service Kit (0w-20) - Includes LiquiMoly Top Tec 6200 508.00/509.00 0W20 oil, Hengst Filter, drain plug, and washer for a complete oil service - 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 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3604824
Mfg#:
20236KT
Ships on Dec 24, 2026
ON SALE!
$139.97

This product was last offered at the strikethrough price on
08-13-2026

$134.21 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Oil Service Kit - Premium

ES#3418639 - 2331kt2 - Oil Service Kit - Premium - Includes Hengst oil filter, drain plug/washer, and 7 liters of Liqui Moly Leichtlauf High Tech Engine Oil (5w-40) oil - Assembled By ECS - Audi
ECS Tuning recommends this product.

Includes Hengst oil filter, drain plug/washer, and 7 liters of Liqui Moly Leichtlauf High Tech Engine Oil (5w-40) oil 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3418639
Mfg#:
2331KT2
In Stock
ON SALE!
$115.99

This product was last offered at the strikethrough price on
08-31-2026

$109.73 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Audi B8.5 S4 / A4 S-Line Rear Diffuser - Gloss Black

ES#4147363 - 028807ecs01KT - Audi B8.5 S4 / A4 S-Line Rear Diffuser - Gloss Black - Add some aggressive styling to your Audi! - ECS - Audi

Add some aggressive styling to your Audi! 10X Entries Into Our F80 M3 Sweepstakes

Fits facelift B8.5 (2013+) models only

Brand:
ECS - Corporate Logo
ES#:
4147363
Mfg#:
028807ECS01KT
In Stock
ON SALE! SAVE 20%
$407.99

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

$326.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" APR A02 "Ready-To-Roll" Wheel & Tire Package for B8 S4 - w/ Ironman Tires

ES#5526935 - A0219854266B8 - 19" APR A02 "Ready-To-Roll" Wheel & Tire Package for B8 S4 - w/ Ironman Tires - 19x8.5 ET45 5x112 - Bronze Finish - With Professionally Mounted & Balanced Ironman iMove Gen 3 AS Tires (235/35ZR19) - APR - Audi

19x8.5 ET45 5x112 - Bronze Finish - With Professionally Mounted & Balanced Ironman iMove Gen 3 AS Tires (235/35ZR19) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5526935
Mfg#:
A0219854266B8
In Stock
$2301.99

This product was last offered at the strikethrough price on
10-14-2026

$2189.99 USD

Oil Service Kit

ES#4781710 - 06m198405f62KT - Oil Service Kit - Includes Liquimoly Molygen High Performance Engine Oil (5w-40), Filter, drain plug, and washer for a complete oil service. VW 502 00/505 00 - Assembled By ECS - Audi

Includes Liquimoly Molygen High Performance Engine Oil (5w-40), Filter, drain plug, and washer for a complete oil service. VW 502 00/505 00 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4781710
Mfg#:
06M198405F62KT
Ships on Dec 24, 2026
ON SALE!
$132.99

This product was last offered at the strikethrough price on
08-13-2026

$122.62 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Liqui Moly MolyGen - Premium Oil Service Kit

ES#3439033 - molygenKT6 - Liqui Moly MolyGen - Premium Oil Service Kit - Includes Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology - Assembled By ECS - Audi

Includes Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3439033
Mfg#:
MOLYGENKT6
In Stock
ON SALE!
$112.99

This product was last offered at the strikethrough price on
08-31-2026

$105.35 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

19" APR A01 "Ready-To-Roll" Wheel & Tire Package for B8 S4 - w/ Ironman Tires

ES#5526944 - A0119854266B8 - 19" APR A01 "Ready-To-Roll" Wheel & Tire Package for B8 S4 - w/ Ironman Tires - 19x8.5 ET45 5x112 - Satin Black Finish - With Professionally Mounted & Balanced Ironman iMove Gen 3 AS Tires (235/35ZR19) - APR - Audi

19x8.5 ET45 5x112 - Satin Black Finish - With Professionally Mounted & Balanced Ironman iMove Gen 3 AS Tires (235/35ZR19) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5526944
Mfg#:
A0119854266B8
Ships in 8 Business Days
$2181.99

This product was last offered at the strikethrough price on
10-14-2026

$2069.99 USD

Top Tec 6200 Engine Oil (0W-20) - 5 Liter

ES#3552701 - 20238 - Top Tec 6200 Engine Oil (0W-20) - 5 Liter - Engineered to help enhance fuel economy. 508/509 approval. - Liqui-Moly - Audi Volkswagen

Engineered to help enhance fuel economy. 508/509 approval. 10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3552701
Mfg#:
20238
In Stock
37% off MSRP

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

$108.99

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

$68.99 USD
Free Shipping
on orders $49 and up

Performance Ignition Service Kit

ES#4620046 - 06E905115GKT17 - Performance Ignition Service Kit - Includes six ECS Performance red coil packs and six NGK Iridium spark plugs - Assembled By ECS - Audi

Includes six ECS Performance red coil packs and six NGK Iridium spark plugs 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4620046
Mfg#:
06E905115GKT17
In Stock
ON SALE! SAVE 12%
$254.99

This product was last offered at the strikethrough price on
09-15-2026

$225.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Air Intake System - True 3.5" Velocity Stack

ES#4017702 - CTS-IT-300R - CTS Turbo Air Intake System - True 3.5" Velocity Stack - NEW UPDATED DESIGN! True 3.5 intake for maximum airflow - 3.5" mandrel bent piping with huge 6 velocity stack air filter! - CTS - Audi

NEW UPDATED DESIGN! True 3.5″ intake for maximum airflow - 3.5" mandrel bent piping with huge 6″ velocity stack air filter!

Brand:
CTS - Corporate Logo
ES#:
4017702
Mfg#:
CTS-IT-300R
Ships in 7 Business Days
ON SALE! SAVE 15%
$329.99

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

$280.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete High Durability Front Control Arm Kit

ES#4327286 - 1160500189/HD - Complete High Durability Front Control Arm Kit - Keep your suspension in top shape - Includes all front control arms, ball joints, and hardware - Meyle HD - Audi Porsche
ECS Tuning recommends this product.

Keep your suspension in top shape - Includes all front control arms, ball joints, and hardware 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Fits models from production date 8/16/2011 (M14 Ball Joints) - Please verify existing prior to ordering

Brand:
Meyle HD - Corporate Logo
ES#:
4327286
Mfg#:
1160500189/HD
In Stock
ON SALE!
$1109.99

This product was last offered at the strikethrough price on
08-23-2026

$1009.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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