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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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IE Rear Sway Bar Upgrade

ES#5375236 - IESSCK1 - IE Rear 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
5375236
Mfg#:
IESSCK1
Ships in 2 Business Days
$429.99 USD
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Handling Packages

ES#4877160 - 034-4ZZ-0020 - 034Motorsport Handling Packages - Staged handling upgrades to best optimize the handling performance of the Audi S4 or S5! - 034Motorsport - Audi

Staged handling upgrades to best optimize the handling performance of the Audi S4 or S5! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4877160
Mfg#:
034-4ZZ-0020
Ships in 2 Business Days
ON SALE!
Starting at $856.80 USD
Customize
Free Shipping
on orders $49 and up

Hex Bolt (M10x40) - Priced Each

ES#2707523 - N91222501 - Hex Bolt (M10x40) - Priced Each - M10x40 Hex bolt, used on various areas on your European auto - Genuine Volkswagen Audi - Audi

M10x40 Hex bolt, used on various areas on your European auto affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures rear shock mount to shock tower - qty 2 per side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2707523
Mfg#:
N91222501
Ships in 2 Business Days
$8.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Front Control Arm Bushing - Priced Each

ES#4709503 - 8W0407515 - Upper Front Control Arm Bushing - Priced Each - For the front upper control arms - Febi - Audi

For the front upper control arms affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4709503
Mfg#:
8W0407515
Ships in 4 Business Days
$11.99

This product was last offered at the strikethrough price on
04-13-2026

$11.75 USD
Free Shipping
on orders $49 and up

Aluminum Front Sway Bar End Link - Priced Each

ES#4265478 - 4M0411317 - Aluminum Front Sway Bar End Link - Priced Each - Fits the left and right side - URO - Audi

Fits the left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4265478
Mfg#:
4M0411317
In Stock
$21.00 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#4709493 - 8K0407183G - Front Lower Control Arm Bushing - Inner - Priced Each - Fits the right or left side. 75mm - Delphi - Audi

Fits the right or left side. 75mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Delphi - Corporate Logo
ES#:
4709493
Mfg#:
8K0407183G
In Stock
$38.99

This product was last offered at the strikethrough price on
03-20-2026

$27.00 USD
Free Shipping
on orders $49 and up

Front Lower Control Arm - Curved - Left

ES#4852417 - 8W0407693B - Front Lower Control Arm - Curved - Left - Keep your suspension in top shape - Mevotech - Audi

Keep your suspension in top shape affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mevotech
ES#:
4852417
Mfg#:
8W0407693B
In Stock at Vendor
$192.99

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

$178.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RUBB MOUNT

ES#3606710 - 4N0407515 - RUBB MOUNT - Genuine Volkswagen Audi - Audi

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3606710
Mfg#:
4N0407515
Ships in 3 Business Days
7% off MSRP

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

$55.00

This product was last offered at the strikethrough price on
07-06-2026

$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Upper Strut Mount - Priced Each

ES#4691253 - 8W0412377B - Front Upper Strut Mount - Priced Each - Keep your suspension in top shape - Fits left & right side - Hamburg Tech - Audi

Keep your suspension in top shape - Fits left & right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For models with standard & sport suspension (PR-Codes 1BA, 1BE)

Brand:
Hamburg Tech - Corporate Logo
ES#:
4691253
Mfg#:
8W0412377B
In Stock at Vendor
$62.99 USD
Free Shipping
on orders $49 and up

IE Adjustable Front Sway End Links

ES#5375255 - IESSCK4 - IE Adjustable Front Sway End Links - Easy adjustments perfect any ride height and provide tight, responsive handling - Integrated Engineering - Audi

Easy adjustments perfect any ride height and provide tight, responsive handling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
5375255
Mfg#:
IESSCK4
Ships in 3 Business Days
$229.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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

ES#4065005 - 022847ecs01KT1 - Audi B9 A4/S4 A5/S5 RS5 Front And Rear Adjustable Sway Bar Kit - Reduce body roll and enhance handling! - ECS - Audi

Reduce body roll and enhance handling! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4065005
Mfg#:
022847ECS01KT1
Ships on Nov 12, 2026
Auto Notify
ON SALE!
$722.99

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

$686.84 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
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

Special Active Front Strut - Priced Each

ES#4698695 - 82451406 - Special Active Front Strut - Priced Each - Superior handling without compromising ride quality - Koni - Audi

Superior handling without compromising ride quality affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles without electronic suspension (49mm diameter strut)

Brand:
Koni - Corporate Logo
ES#:
4698695
Mfg#:
82451406
Back Ordered
ON SALE! SAVE 20%
$207.99

This product was last offered at the strikethrough price on
03-02-2026

$165.70 USD
Free Shipping
on orders $49 and up

Rear Toe Link - Right

ES#3087073 - 8W0501530D - Rear Toe Link - Right - Make your driving experience more comfortable and safer - Genuine Volkswagen Audi - Audi

Make your driving experience more comfortable and safer affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3087073
Mfg#:
8W0501530D
Ships in 3 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.

$176.99

This product was last offered at the strikethrough price on
07-06-2026

$161.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B4 OE Replacement DampTronic Rear Strut - Priced Each

ES#4148169 - 26-296029 - B4 OE Replacement DampTronic Rear Strut - Priced Each - Engineered to restore original performance and handling. German-made with world-famous Bilstein quality and a limited lifetime warranty! - Bilstein - Audi

Engineered to restore original performance and handling. German-made with world-famous Bilstein quality and a limited lifetime warranty! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with electronic suspension

Brand:
Bilstein - Corporate Logo
ES#:
4148169
Mfg#:
26-296029
Ships in 4 Business Days
Auto Notify
$319.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Special Active Front And Rear Struts

ES#4698700 - 82451406KT - Special Active Front And Rear Struts - Superior handling without compromising ride quality - Koni - Audi

Superior handling without compromising ride quality affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vehicle will lose Adaptive Dampening Control

Brand:
Koni - Corporate Logo
ES#:
4698700
Mfg#:
82451406KT
Back Ordered
ON SALE! SAVE 20%
$734.99

This product was last offered at the strikethrough price on
02-06-2026

$586.34 USD
Free Shipping
on orders $49 and up

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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