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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Suspension Parts & Accessories

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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
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

Left Rear Upper Control Arm

ES#3087079 - 8W0505323F - Left Rear Upper Control Arm - Keep your suspension tight - Genuine Volkswagen Audi - Audi

Keep your suspension tight

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3087079
Mfg#:
8W0505323F
Ships in 2 Business Days
9% off MSRP

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

$383.99

This product was last offered at the strikethrough price on
08-23-2026

$350.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Right Rear Upper Control Arm

ES#4852549 - 8W0505324F - Right Rear Upper Control Arm - Keep your suspension tight - Mevotech - Audi

Keep your suspension tight

Brand:
Mevotech
ES#:
4852549
Mfg#:
8W0505324F
In Stock at Vendor
$186.99

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

$174.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Left Rear Upper Control Arm

ES#4852482 - 8W0505323F - Left Rear Upper Control Arm - Keep your suspension tight - Mevotech - Audi

Keep your suspension tight

Brand:
Mevotech
ES#:
4852482
Mfg#:
8W0505323F
In Stock at Vendor
$186.99

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

$174.99 USD
Free Shipping
on orders $49 and up
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 Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4027361
Mfg#:
022847ECS01KT
Ships on Jan 4, 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

Audi Shock Mount

Brand:
Sachs - Corporate Logo
ES#:
5374898
Mfg#:
803294
Ships in 3 Business Days
$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Control Arm Bushing - Outer - Priced Each

ES#4872181 - 4E0407181B - Front Lower Control Arm Bushing - Outer - Priced Each - Fits the left and right side - URO - Audi

Fits the left and right side 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For the straight control arm

Brand:
URO - Corporate Logo
ES#:
4872181
Mfg#:
4E0407181B
In Stock
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Lateral Upper Control Arm - Right

ES#3233749 - 8W0505398F - Rear Lateral Upper Control Arm - Right - Keep your ride running like new! - Genuine Volkswagen Audi - Audi

Keep your ride running like new!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3233749
Mfg#:
8W0505398F
Ships in 2 Business Days
9% off MSRP

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

$316.99

This product was last offered at the strikethrough price on
08-23-2026

$289.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Lateral Upper Control Arm - Left

ES#3233748 - 8W0505397F - Rear Lateral Upper Control Arm - Left - Keep your ride running like new! - Genuine Volkswagen Audi - Audi

Keep your ride running like new!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3233748
Mfg#:
8W0505397F
Ships in 3 Business Days
9% off MSRP

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

$316.99

This product was last offered at the strikethrough price on
08-23-2026

$289.99 USD
Free Shipping
on orders $49 and up
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
Back Ordered
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Control Arm Bushing - Inner - Priced Each

ES#2540840 - 8K0407182C - Front Lower Control Arm Bushing - Inner - Priced Each - Can be used on either the right or left side. - Genuine Volkswagen Audi - Audi

Can be used on either the right or left side. For the straight control arm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2540840
Mfg#:
8K0407182C
Ships in 2 Business Days
8% off MSRP

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

$58.99

This product was last offered at the strikethrough price on
08-23-2026

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front & Rear Suspension Installation Kit

ES#4876462 - 8W0412377KT3 - Front & Rear Suspension Installation Kit - Includes front & rear shock/strut mounts and associated hardware for a complete suspension installation - Assembled By ECS - Audi

Includes front & rear shock/strut mounts and associated hardware for a complete suspension installation 10X Entries Into Our F80 M3 Sweepstakes
For models with standard & sport suspension (PR-Codes 1BA, 1BE)

Brand:
Assembled By ECS - Corporate Logo
ES#:
4876462
Mfg#:
8W0412377KT3
Ships on Sep 9, 2026
ON SALE! SAVE 10%
$295.99

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

$267.44 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

Hex Bolt (M10x80) - Priced Each

ES#2088452 - N10688301 - Hex Bolt (M10x80) - Priced Each - M10x80 - Hex head bolt with shoulder, Used in various areas on your European auto - Genuine Volkswagen Audi - Audi

M10x80 - Hex head bolt with shoulder, Used in various areas on your European auto Pinch bolt for front strut - Secures bottom of front strut to the suspension fork upright

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2088452
Mfg#:
N10688301
Ships in 1-3 days
11% off MSRP

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

$14.78

This product was last offered at the strikethrough price on
08-23-2026

$13.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Suspension Parts & Accessories

A good suspension holds you up, while keeping your tires safely planted on the road surface for good traction, braking, and handling. Even if you don't know jounce from rebound, we can help you choose suspension parts, accessories, and upgrades to match your car, driving style, and budget.

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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