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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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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

Brand:
034Motorsport - Corporate Logo
ES#:
4669425
Mfg#:
034-407-1009
Ships in 2 Business Days
ON SALE! SAVE 10%
$463.00

This product was last offered at the strikethrough price on
08-17-2026

$416.70 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 10X Entries For Our 25th Anniversary Sweepstakes!
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

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
Ships in 5 Business Days
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
02-27-2026

$189.99 USD
Free Shipping
on orders $49 and up

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 For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4027362
Mfg#:
022848ECS01KT
Ships on Nov 11, 2026
Auto Notify
ON SALE!
$380.99

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

$361.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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 3 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 For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4027361
Mfg#:
022847ECS01KT
Ships on Dec 31, 2026
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

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 End Link - Priced Each

ES#2795517 - 8K0411317D - Front Sway Bar End Link - Priced Each - Fits the left and right side - Vaico - Audi

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

Brand:
Vaico - Corporate Logo
ES#:
2795517
Mfg#:
8K0411317D
In Stock at Vendor
$43.99

This product was last offered at the strikethrough price on
05-07-2026

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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! *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
ON SALE! SAVE 10%
$29.00

This product was last offered at the strikethrough price on
08-17-2026

$26.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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
Back Ordered
ON SALE! SAVE 15%
$137.99

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

$117.29 USD
Free Shipping
on orders $49 and up
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

TGK Motorsport Rear Subframe Mount Billet Insert Kit

Sharpen handling and lock down your Audi B9 or B9.5's chassis by eliminating rear-end slop with this premium billet aluminum subframe insert kit.

Brand:
TGK Motorsport - Corporate Logo
ES#:
5477663
Mfg#:
TGK-0404-06
Ships in 5 Business Days
$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Front Sway Bar End Link Rebuild Kit

ES#4147672 - 034-402-Z020 - Adjustable Front Sway Bar End Link Rebuild Kit - 034Motorsport is proud to offer a rebuild kit for their MkV/MkVI/MkVII Volkswagen & 8J/8P/8V/8S, B8/B8.5/B9 Audi Adjustable Sway Bar End Links! - 034Motorsport - Audi

034Motorsport is proud to offer a rebuild kit for their MkV/MkVI/MkVII Volkswagen & 8J/8P/8V/8S, B8/B8.5/B9 Audi Adjustable Sway Bar End Links! *To be used with adjustable end link kits: 034-402-4006, 034-402-4025, & 034-402-4002

Brand:
034Motorsport - Corporate Logo
ES#:
4147672
Mfg#:
034-402-Z020
Ships in 2 Business Days
ON SALE! SAVE 10%
$106.00

This product was last offered at the strikethrough price on
08-17-2026

$95.40 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing (Caster Adjustable 75mm) - Black Series

ES#4829861 - PFF3-702GBLK - Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing (Caster Adjustable 75mm) - Black Series - Eliminate deflection caused by stock rubber bushings! - Powerflex Black Series - Audi

Eliminate deflection caused by stock rubber bushings!

Brand:
Powerflex Black Series - Corporate Logo
ES#:
4829861
Mfg#:
PFF3-702GBLK
Ships in 1 Business Day
ON SALE! SAVE 15%
$220.99

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

$187.84 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.

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