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Audi S4 Performance Suspension Parts & Upgrades

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Density Line Lower Control Arm Kit

ES#3183552 - 034-401-1021KT - Density Line Lower Control Arm Kit - Includes 034Motorsport Density line lower control arms & necessary hardware - Assembled By ECS - Audi

Includes 034Motorsport Density line lower control arms & necessary hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3183552
Mfg#:
034-401-1021KT
In Stock
$525.96

This product was last offered at the strikethrough price on
08-12-2026

$513.40 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Sway Bar End Link - Priced Each

ES#2561116 - 8K0411317D - Front Sway Bar End Link - Priced Each - Fits the left and right side - Lemforder - Audi

Fits the left and right side We Price Match - Give Us A Call or Chat!

Brand:
Lemforder - Corporate Logo
ES#:
2561116
Mfg#:
8K0411317D
In Stock
$22.43

This product was last offered at the strikethrough price on
05-26-2026

$18.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sport Springs - Set

ES#2016 - 29257 - Sport Springs - Set - Unrivaled comfort and performance. Average lowering of 1.2"F 1.2"R - H&R - Audi

Unrivaled comfort and performance. Average lowering of 1.2"F 1.2"R We Price Match - Give Us A Call or Chat!
Fits Avant models only

Brand:
H&R - Corporate Logo
ES#:
2016
Mfg#:
29257
Ships in 3 Business Days
15% off MSRP

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

$399.00

This product was last offered at the strikethrough price on
07-01-2026

$339.15 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Inverted-Damper Performance Coilover System - Audi B8/B8.5

ES#4900307 - 026116LA01 - Inverted-Damper Performance Coilover System - Audi B8/B8.5 - Increases rigidity and reduces flex under cornering and braking loads - ECS - Audi

Increases rigidity and reduces flex under cornering and braking loads 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#:
4900307
Mfg#:
026116LA01
In Stock
ON SALE! SAVE 23%
$1299.99

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

$999.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Rear Sway Bar End Links - Pair

ES#2864590 - 034-402-4005 - Adjustable Rear Sway Bar End Links - Pair - Replace your flimsy, sloppy OEM sway bar end links with these performance engineered adjustable spherical endlinks - 034Motorsport - Audi

Replace your flimsy, sloppy OEM sway bar end links with these performance engineered adjustable spherical endlinks 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2864590
Mfg#:
034-402-4005
Ships in 2 Business Days
$248.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Adjustable Rear Toe Links

ES#3236103 - 034-407-1001 - Density Line Adjustable Rear Toe Links - Allows for precision alignment and the ability to reduce tire wear on lowered vehicles! - 034Motorsport - Audi

Allows for precision alignment and the ability to reduce tire wear on lowered vehicles! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3236103
Mfg#:
034-407-1001
In Stock
$330.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B12 Pro-Kit Suspension System

ES#2983899 - 46-189769 - 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
2X Entries For Our Spin To Win Sweepstakes!
Vehicles equipped with Electronic Damping Control (EDC) will lose shock dampening and receive a system error code with coilover systems

Brand:
Bilstein - Corporate Logo
ES#:
2983899
Mfg#:
46-189769
Special Order: No Guaranteed ETA
$969.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ST Adjustable Lowering Springs

ES#4045183 - 27310075 - ST Adjustable Lowering Springs - Allows individual ride height adjustment at each corner of your vehicle - Make your stock suspension height adjustable, without compromise! - Suspension Techniques - Audi

Allows individual ride height adjustment at each corner of your vehicle - Make your stock suspension height adjustable, without compromise! Fits coupe models - Average lowering of 0.6"-1.8" Front, 0.6"-1.8" Rear

Brand:
Suspension Techniques - Corporate Logo
ES#:
4045183
Mfg#:
27310075
Back Ordered
$969.00 USD
Free Shipping

Special Active Rear Shock - Priced Each

ES#4698697 - 82451407 - Special Active Rear Shock - Priced Each - Superior handling without compromising ride quality - Koni - Audi

Superior handling without compromising ride quality For vehicles without electronic suspension

Brand:
Koni - Corporate Logo
ES#:
4698697
Mfg#:
82451407
Ships in 5 Business Days
38% off MSRP

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

$258.99

This product was last offered at the strikethrough price on
09-16-2026

$159.99 USD
Free Shipping
on orders $49 and up

Performance Front Lower Control Arm Bushing Set

ES#4045819 - PFF3-701 - Performance Front Lower Control Arm Bushing Set - Improves handling and control - upgrade to a more engaging driving experience - Powerflex - Audi

Improves handling and control - upgrade to a more engaging driving experience For the straight control arm
For the straight control arm

Brand:
Powerflex - Corporate Logo
ES#:
4045819
Mfg#:
PFF3-701
In Stock
$103.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Grease

ES#2650597 - PCG1 - Silicone Grease - Recommended by Powerflex for quiet operation and long service life of polyurethane bushings - Powerflex - Audi BMW Volkswagen MINI Porsche

Recommended by Powerflex for quiet operation and long service life of polyurethane bushings

Brand:
Powerflex - Corporate Logo
ES#:
2650597
Mfg#:
PCG1
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B5 A4 / S4 Quattro Adjustable Damping Coilovers & Performance Rear Differential Mount

ES#4751048 - 000703LA01EBKT - B5 A4 / S4 Quattro Adjustable Damping Coilovers & Performance Rear Differential Mount - Features 32 way adjustable damping, variable length and zinc-coated shock bodies - Enthusiast Bundles - Audi

Features 32 way adjustable damping, variable length and zinc-coated shock bodies Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751048
Mfg#:
000703LA01EBKT
In Stock
ON SALE! SAVE 29%
$1288.99

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

$917.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Sway Bar Kit

Kit includes 32mm front & 22mm rear sway bars We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
4148346
Mfg#:
72056
Ships in 3 Business Days
10% off MSRP

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

$1015.00

This product was last offered at the strikethrough price on
07-01-2026

$913.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Upper Control Arm Bushing Set - Inner - Race

ES#2650527 - PFR3-209Bx4 - Rear Upper Control Arm Bushing Set - Inner - Race - Improves handling and control - Upgrade to a more engaging driving experience - Powerflex Black Series - Audi

Improves handling and control - Upgrade to a more engaging driving experience

Brand:
Powerflex Black Series - Corporate Logo
ES#:
2650527
Mfg#:
PFR3-209BX4
Ships in 1 Business Day
$129.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Suspension Parts & Upgrades

Your car's performance and ride quality are effectively determined by your suspension. Find all the replacement and upgrade solutions for your dampers, springs, control arms, and more in our suspension catalog.

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.

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