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Audi S4 Performance Suspension Parts & Upgrades

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Bilstein B16 PSS10 Suspension System

ES#4370310 - 48-275071 - Bilstein B16 PSS10 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
Without Electronic Suspension

Brand:
Bilstein - Corporate Logo
ES#:
4370310
Mfg#:
48-275071
Ships in 3 Business Days
31% off MSRP

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

$3573.00

This product was last offered at the strikethrough price on
11-01-2026

$2473.00 USD
Free Shipping

220MM Coilover Damping Extensions

ES#4872123 - 004673LA01 - 220MM Coilover Damping Extensions - Adjust your damping without removing your interior! - ECS - Audi BMW Volkswagen MINI Porsche

Adjust your damping without removing your interior! 10X Entries Into Our F80 M3 Sweepstakes
10X Entries For Our Spin To Win Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4872123
Mfg#:
004673LA01
In Stock
ON SALE! SAVE 10%
$37.99

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

$34.19 USD
Free Shipping
on orders $49 and up

Heavy Duty Rubber Rear Shock Mount & Installation Kit

ES#4821250 - 049327LA01KT - Heavy Duty Rubber Rear Shock Mount & Installation Kit - Enhance longevity and improve your Audi's handling with our in-house designed HD rubber shock mount! - ECS - Audi Volkswagen

Enhance longevity and improve your Audi's handling with our in-house designed HD rubber shock mount! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4821250
Mfg#:
049327LA01KT
In Stock
ON SALE! SAVE 27%
$137.99

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

$100.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit

ES#3521689 - S-05-BR - BR Series Coilover Suspension Kit - Featuring 30 levels of adjustment and performance spring rates and valving - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving

Brand:
BC Racing - Corporate Logo
ES#:
3521689
Mfg#:
S-05-BR
Ships in 5 Business Days
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - B9 Audi A4/S4

ES#4872510 - S-35-BR - BR Series Coilover Suspension Kit - B9 Audi A4/S4 - Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! For vehicles with production date up to 7/11/2016 with 53mm front strut body with factory Electronic Damping Control.

Brand:
BC Racing - Corporate Logo
ES#:
4872510
Mfg#:
S-35-BR
Ships on Dec 22, 2026
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lowering Springs

ES#4830683 - CTS-LS-025 - Lowering Springs - 1 lowering on average for front and Rear - CTS - Audi

1″ lowering on average for front and Rear

Brand:
CTS - Corporate Logo
ES#:
4830683
Mfg#:
CTS-LS-025
Ships in 9 Business Days
ON SALE! SAVE 15%
$249.99

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

$212.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

H.A.S. - Adjustable Coilover Spring System

ES#2619512 - 25310075 - H.A.S. - Adjustable Coilover Spring System - Retains the use of your factory shocks while providing the ability to adjust ride ride height from 0.6" to 1.8" Front 0.6" to 1.6" Rear - KW Suspension - Audi

Retains the use of your factory shocks while providing the ability to adjust ride ride height from 0.6" to 1.8" Front 0.6" to 1.6" Rear

Brand:
KW Suspension - Corporate Logo
ES#:
2619512
Mfg#:
25310075
In Stock at Vendor
$1144.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW V2 Series Coilover Kit

ES#2092106 - 15210032 - KW V2 Series Coilover Kit - Variant 2 coilovers offer sport handling with adjustable rebound dampening - KW Suspension - Audi

Variant 2 coilovers offer sport handling with adjustable rebound dampening Range of lowering is 1.5-2.9" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2092106
Mfg#:
15210032
Back Ordered
$2284.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Rear Subframe Bushing Kit

ES#3178069 - 034-601-0011 - Billet Rear Subframe Bushing Kit - Maintain proper suspension geometry when cornering and reduce rear subframe movement - 034Motorsport - Audi

Maintain proper suspension geometry when cornering and reduce rear subframe movement 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3178069
Mfg#:
034-601-0011
Ships in 2 Business Days
$285.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

X-Clear Driveshaft Tunnel Brace

ES#4381925 - 034-603-0030 - X-Clear Driveshaft Tunnel Brace - Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration. - 034Motorsport - Audi

Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4381925
Mfg#:
034-603-0030
In Stock
$140.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport Shocks & Struts Kit

ES#2631383 - 82401279SPORTKT - Sport Shocks & Struts Kit - Tighten up your Audi with these Koni Yellow shocks & struts - Koni - Audi

Tighten up your Audi with these Koni Yellow shocks & struts

Brand:
Koni - Corporate Logo
ES#:
2631383
Mfg#:
82401279SPORTKT
In Stock
ON SALE! SAVE 20%
$929.99

This product was last offered at the strikethrough price on
10-31-2026

$743.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Performance Coilover System - Fixed Damping

ES#240272 - 29092-1 - Street Performance Coilover System - Fixed Damping - Unrivaled comfort and performance - Average lowering of 1.0"-2.2"F 1.0"-2.2"R. - H&R - Audi

Unrivaled comfort and performance - Average lowering of 1.0"-2.2"F 1.0"-2.2"R. We Price Match - Give Us A Call or Chat!
Vehicles equipped with Electronic Damping Control (EDC) will lose shock damping and receive a system error code with coilover systems.

Brand:
H&R - Corporate Logo
ES#:
240272
Mfg#:
29092-1
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.

$2450.00

This product was last offered at the strikethrough price on
10-01-2026

$2205.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW V1 Series Coilover Kit

ES#2102302 - 10210078 - KW V1 Series Coilover Kit - Variant 1 coilovers offer the best balance between sporty driving and comfort - KW Suspension - Audi

Variant 1 coilovers offer the best balance between sporty driving and comfort Fits avant models without factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2102302
Mfg#:
10210078
Ships in 4 Business Days
$2204.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Air Lift Performance Coilover Kit

ES#4908433 - 79005 - Air Lift Performance Coilover Kit - Offers the ability to convert to a complete air suspension system via a coilover-to-air conversion kit (coming soon)! - Air Lift - Audi

Offers the ability to convert to a complete air suspension system via a coilover-to-air conversion kit (coming soon)!

Brand:
Air Lift - Corporate Logo
ES#:
4908433
Mfg#:
79005
Ships in 3 Business Days
$1095.00 USD

Motorsport Rear Sway Bar End Links

ES#2864592 - 034-402-4007 - Motorsport Rear Sway Bar End Links - Replace the flimsy stock plastic and rubber units. - 034Motorsport - Audi Porsche

Replace the flimsy stock plastic and rubber units. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2864592
Mfg#:
034-402-4007
In Stock
$243.00 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

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

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