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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Performance Suspension Parts & Upgrades

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IE Adjustable Rear Sway End Links

ES#5375238 - IESSCK5 - IE Adjustable Rear Sway End Links - Provides tight, responsive handling for any ride height from stock to slammed - Integrated Engineering - Audi

Provides tight, responsive handling for any ride height from stock to slammed

Brand:
Integrated Engineering - Corporate Logo
ES#:
5375238
Mfg#:
IESSCK5
Ships in 4 Business Days
$249.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Motorsport Adjustable Rear Toe Links

ES#4669425 - 034-407-1009 - Motorsport Adjustable Rear Toe Links - A direct, drop-in upgrade for the cast steel factory rear toe links - 034Motorsport - Audi

A direct, drop-in upgrade for the cast steel factory rear toe links 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4669425
Mfg#:
034-407-1009
Ships in 2 Business Days
$463.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

TGK Motorsport Audi Thrust Arm Spherical Monoball Kit

ES#5477699 - TGK-0411-04 - TGK Motorsport Audi Thrust Arm Spherical Monoball Kit - A direct-replacement spherical monoball kit for B9 Audi thrust arms that replaces the factory rubber bushings to eliminate unwanted suspension deflection. - TGK Motorsport - Audi

A direct-replacement spherical monoball kit for B9 Audi thrust arms that replaces the factory rubber bushings to eliminate unwanted suspension deflection.

Brand:
TGK Motorsport - Corporate Logo
ES#:
5477699
Mfg#:
TGK-0411-04
Ships in 5 Business Days
$449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Sway Bar Kit

New sway bars from H&R for unrivaled performance and fitment We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
4430813
Mfg#:
71056
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.

$459.00

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

$413.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Solo-Werks S1 Coilover Spanner Wrenchs

ES#4055298 - SWspanners - Solo-Werks S1 Coilover Spanner Wrenchs - Replacement spanner wrenches for S1 coilovers systems - Solo-Werks - Audi Volkswagen

Replacement spanner wrenches for S1 coilovers systems

Brand:
Solo-Werks - Corporate Logo
ES#:
4055298
Mfg#:
SWSPANNERS
In Stock
$50.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/S4 A5/S5 RS5 Rear Adjustable Sway Bar

ES#4027362 - 022848ecs01KT - Audi B9 A4/S4 A5/S5 RS5 Rear Adjustable Sway Bar - Reduce body roll and enhance handling! - ECS - Audi

Reduce body roll and enhance handling! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4027362
Mfg#:
022848ECS01KT
Ships on Nov 11, 2026
$380.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Sport Shock - Priced Each

ES#4698693 - 82401319SPORT - Rear Sport Shock - Priced Each - Tighten up your Audi with these Koni shocks - Koni - Audi

Tighten up your Audi with these Koni shocks For vehicles without electronic suspension

Brand:
Koni - Corporate Logo
ES#:
4698693
Mfg#:
82401319SPORT
Back Ordered
39% off MSRP

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

$308.99

This product was last offered at the strikethrough price on
10-09-2026

$189.99 USD
Free Shipping
on orders $49 and up

Racingline Sport Spring Set

ES#3570412 - VWR3141S4 - Racingline Sport Spring Set - Give your B9 S4 the ride height it deserves - The first upgrade to make to your car! - Racingline - Audi

Give your B9 S4 the ride height it deserves - The first upgrade to make to your car!

Brand:
Racingline - Corporate Logo
ES#:
3570412
Mfg#:
VWR3141S4
Ships in 2 Business Days
$338.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/S4 A5/S5 RS5 Front Adjustable Sway Bar

ES#4027361 - 022847ecs01KT - Audi B9 A4/S4 A5/S5 RS5 Front Adjustable Sway Bar - Reduce body roll and enhance handling! - ECS - Audi

Reduce body roll and enhance handling! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4027361
Mfg#:
022847ECS01KT
Ships on Feb 19, 2027
ON SALE! SAVE 10%
$374.81

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

$337.33 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EMMOTION Rear Sway Bar - 22.2mm

ES#3199952 - EMD-B9Q-RSB - EMMOTION Rear Sway Bar - 22.2mm - Reduce body roll with this new sway bar from Emmanuele Design - Emmanuele Design - Audi

Reduce body roll with this new sway bar from Emmanuele Design

Brand:
Emmanuele Design - Corporate Logo
ES#:
3199952
Mfg#:
EMD-B9Q-RSB
Ships in 1 Business Day
$285.00 USD

Polyurethane Front Upper Control Arm Bushings

ES#4305144 - PFF3-1203 - Polyurethane Front Upper Control Arm Bushings - Improves handling and control - upgrade to a more engaging driving experience - Powerflex - Audi

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

Brand:
Powerflex - Corporate Logo
ES#:
4305144
Mfg#:
PFF3-1203
Ships in 1 Business Day
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Sway Bar (25.4mm)

If understeer is an issue, increasing or adding a sway bar in the rear can help.

Brand:
Megan Racing - Corporate Logo
ES#:
4833817
Mfg#:
MRS-AU-2091
Ships in 4 Business Days
$266.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Sway Bar Bushing Kit

ES#3603475 - 034-402-Z018 - Front Sway Bar Bushing Kit - Rebuild kit for the 034Motorsport adjustable front sway bar - 034Motorsport - Audi

Rebuild kit for the 034Motorsport adjustable front sway bar 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3603475
Mfg#:
034-402-Z018
In Stock
$29.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Special Silicone Grease

ES#3046027 - WPTUBSIL - Special Silicone Grease - Properly lubricate your SuperPro polyurethane bushings - 500 grams - SuperPro - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Properly lubricate your SuperPro polyurethane bushings - 500 grams

Brand:
SuperPro - Corporate Logo
ES#:
3046027
Mfg#:
WPTUBSIL
Ships in 8 Business Days
$42.99 USD
Free Shipping
on orders $49 and up

Adjustable Rear Sway Bar Rebuild Kit

ES#4147667 - 034-402-Z014 - Adjustable Rear Sway Bar Rebuild Kit - 034Motorsport is proud to offer a rebuild kit for their 22.2mm Diameter Adjustable Solid Rear Sway Bars! - 034Motorsport - Audi Volkswagen

034Motorsport is proud to offer a rebuild kit for their 22.2mm Diameter Adjustable Solid Rear Sway Bars! 2X Entries Into Our F80 M3 Sweepstakes
*To be used with sway bar kits: 034-402-1010, 034-402-1006, & 034-402-1002

Brand:
034Motorsport - Corporate Logo
ES#:
4147667
Mfg#:
034-402-Z014
Ships in 2 Business Days
$29.00 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.

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

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