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Audi S4 Performance Suspension Parts & Upgrades

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Rear Lower Control Arm Brace - Audi B8 A4/A5/S4/S5

ES#3478040 - 008050ecs01KT - Rear Lower Control Arm Brace - Audi B8 A4/A5/S4/S5 - Provides additional support to the rear lower control arms for flex reduction to enhance your driving experience - ECS - Audi

Provides additional support to the rear lower control arms for flex reduction to enhance your driving experience 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3478040
Mfg#:
008050ECS01KT
Ships in 8 Business Days
ON SALE! SAVE 25%
$187.99

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

$140.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Front Sway Bar Upgrade

ES#5375237 - IESSCK3 - IE Front Sway Bar Upgrade - Direct bolt-in replacement with adjustable stiffness for reduced body roll and increased grip! - Integrated Engineering - Audi

Direct bolt-in replacement with adjustable stiffness for reduced body roll and increased grip! Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!
This front sway bar must be paired with the matching iE Rear Sway Bar (IESSCK1)

Brand:
Integrated Engineering - Corporate Logo
ES#:
5375237
Mfg#:
IESSCK3
Ships in 2 Business Days
$339.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Sport Springs - Set

ES#645 - 29477-2 - Sport Springs - Set - Unrivaled comfort and performance. Average lowering of 1.4"F 1.3"R - H&R - Audi

Unrivaled comfort and performance. Average lowering of 1.4"F 1.3"R We Price Match - Give Us A Call or Chat!
Fits Avant models only

Brand:
H&R - Corporate Logo
ES#:
645
Mfg#:
29477-2
Ships in 4 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

Density Line Adjustable Upper Control Arm Kit

ES#3183553 - 034-401-1000-KT - Density Line Adjustable Upper Control Arm Kit - Includes 034Motorsport Density Line adjustable upper control arms & necessary installation hardware - Assembled By ECS - Audi

Includes 034Motorsport Density Line adjustable upper control arms & necessary installation hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3183553
Mfg#:
034-401-1000-KT
In Stock
$673.99

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

$671.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Sway Bar - 30mm

ES#1876401 - 70361 - Front Sway Bar - 30mm - Adjustable version - H&R - Audi

Adjustable version We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
1876401
Mfg#:
70361
Ships in 4 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.

$369.00

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

$332.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Front Sway Bar End Links - Pair

ES#2864591 - 034-402-4006 - Adjustable Front 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#:
2864591
Mfg#:
034-402-4006
Back Ordered
$217.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8/B8.5 A4/S4 Lowering Springs & Installation Kit

ES#4691182 - 047330LA01KT - B8/B8.5 A4/S4 Lowering Springs & Installation Kit - Dramatically improve looks and handling with and average lowering up to 1.6" front and rear. Paired with ECS Tuning Cup Kit Installation Kit. - Assembled By ECS - Audi

Dramatically improve looks and handling with and average lowering up to 1.6" front and rear. Paired with ECS Tuning Cup Kit Installation Kit. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4691182
Mfg#:
047330LA01KT
In Stock
ON SALE!
$652.99

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

$649.31 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Rear Tie Rod Set

ES#4701674 - TRS-005 - Adjustable Rear Tie Rod Set - Enables very precise setting of rear geometry settings. A must-have for track or race use! - Verkline - Audi

Enables very precise setting of rear geometry settings. A must-have for track or race use!

Brand:
Verkline - Corporate Logo
ES#:
4701674
Mfg#:
TRS-005
In Stock
$324.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Special Active Shock Absorber Kit

ES#4430378 - 80451265KT - Rear Special Active Shock Absorber Kit - Superior handling without compromising ride quality - Koni - Audi

Superior handling without compromising ride quality Vehicles equipped with Electronic Damping Control (EDC) will lose factory shock damping and receive a system error code

Brand:
Koni - Corporate Logo
ES#:
4430378
Mfg#:
80451265KT
In Stock
$322.99

This product was last offered at the strikethrough price on
08-26-2026

$321.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sway Bar Set

ES#2816985 - 52316 - Sway Bar Set - Kit includes 28mm front & 24mm rear sway bars - Suspension Techniques - Audi

Kit includes 28mm front & 24mm rear sway bars

Brand:
Suspension Techniques - Corporate Logo
ES#:
2816985
Mfg#:
52316
Back Ordered
$629.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Front Sway Bar Bushing Set - Race - 29mm

ES#2650211 - PFF3-204-29BX2 - Performance Front Sway Bar Bushing Set - Race - 29mm - Stiffer bushings allow sway bars to work at their fullest potential - Powerflex Black Series - Audi Volkswagen

Stiffer bushings allow sway bars to work at their fullest potential

Brand:
Powerflex Black Series - Corporate Logo
ES#:
2650211
Mfg#:
PFF3-204-29BX2
In Stock
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Polyurethane Front Sway Bar Bushing Set

ES#4305155 - PFF3-204-26 - Performance Polyurethane Front Sway Bar Bushing Set - Stiffer bushings allow sway bars to work at their fullest potential. For use with a 26mm sway bar. - Powerflex - Audi

Stiffer bushings allow sway bars to work at their fullest potential. For use with a 26mm sway bar.

Brand:
Powerflex - Corporate Logo
ES#:
4305155
Mfg#:
PFF3-204-26
In Stock
$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi Thrust Arm Monoball Upgrade - Pre-Installed in Meyle HD Arms (M12 Ball Joints)

ES#4429964 - 012596LA01 - Audi Thrust Arm Monoball Upgrade - Pre-Installed in Meyle HD Arms (M12 Ball Joints) - Eliminate deflection caused by stock rubber bushings! - ECS - Audi

Eliminate deflection caused by stock rubber bushings! 10X Entries Into Our F80 M3 Sweepstakes

Up to production date 11/2/2009 (M12 Ball Joints)

Brand:
ECS - Corporate Logo
ES#:
4429964
Mfg#:
012596LA01
In Stock
ON SALE! SAVE 19%
$732.99

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

$591.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Upper Control Arm Bushing Set - Outer - Race

ES#2650519 - PFR3-208Bx2 - Rear Upper Control Arm Bushing Set - Outer - 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#:
2650519
Mfg#:
PFR3-208BX2
Back Ordered
$70.99 USD
Free Shipping
on orders $49 and up
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

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Manufacturer names and/or part numbers are used only for identification purposes.

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