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Audi S4 Performance Suspension Parts & Upgrades

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Rear Performance Air Ride Kit

ES#2626357 - 75658 - Rear Performance Air Ride Kit - Allow your B8 Audi to sit on the ground! - Air Lift - Audi

Allow your B8 Audi to sit on the ground! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Air Lift - Corporate Logo
ES#:
2626357
Mfg#:
75658
In Stock at Vendor
$1386.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Sway Bar - 24mm

ES#1876408 - 71361 - Rear Sway Bar - 24mm - Non-adjustable - H&R - Audi

Non-adjustable affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
1876408
Mfg#:
71361
In Stock
Limited Qty Sale
$300.00

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

$274.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Density Line Upper Control Arm Kit - Track Spec

ES#3546574 - 034-401-1062 - Density Line Upper Control Arm Kit - Track Spec - Gain negative camber for increased cornering grip, better turn-in, and improved handling! - 034Motorsport - Audi

Gain negative camber for increased cornering grip, better turn-in, and improved handling! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3546574
Mfg#:
034-401-1062
Ships in 2 Business Days
$680.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Front Sway Bar Bushing Set - Street - 29mm

ES#2651377 - PFF3-204-29x2 - Performance Front Sway Bar Bushing Set - Street - 29mm - Stiffer bushings allow sway bars to work at their fullest potential - Powerflex - Audi Volkswagen

Stiffer bushings allow sway bars to work at their fullest potential affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex - Corporate Logo
ES#:
2651377
Mfg#:
PFF3-204-29X2
In Stock
$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - Extreme Low

ES#3675616 - S-02E-BR-A - BR Series Coilover Suspension Kit - Extreme Low - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Please allow 4-6 weeks for build time
For avant models only

Brand:
BC Racing - Corporate Logo
ES#:
3675616
Mfg#:
S-02E-BR-A
Ships on Jul 28, 2026
$1345.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - Extreme Low

ES#3675615 - S-02E-BR - BR Series Coilover Suspension Kit - Extreme Low - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Please allow 4-6 weeks for build time
For sedan models only

Brand:
BC Racing - Corporate Logo
ES#:
3675615
Mfg#:
S-02E-BR
Ships on Jul 28, 2026
$1345.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - Extreme Low

ES#4424824 - S-28E-BR - BR Series Coilover Suspension Kit - Extreme Low - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 7/12/2016 with 48.5mm front strut body without factory Electronic Damping Control.

Brand:
BC Racing - Corporate Logo
ES#:
4424824
Mfg#:
S-28E-BR
Back Ordered
$1345.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Adjustable Upper Control Arm Kit

ES#3183553 - 034-401-1000-KT - Density Line Adjustable Upper Control Arm Kit - Includes 034Motorsport Density Line adjustable upper control arms & necessary installation hardware - Assembled By ECS - Audi

Includes 034Motorsport Density Line adjustable upper control arms & necessary installation hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3183553
Mfg#:
034-401-1000-KT
Ships in 1-3 days
$671.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Performance Air Ride Kit

ES#2626354 - 75558 - Front Performance Air Ride Kit - Allow your B8 Audi to sit on the ground! - Air Lift - Audi

Allow your B8 Audi to sit on the ground! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Air Lift - Corporate Logo
ES#:
2626354
Mfg#:
75558
In Stock at Vendor
$1333.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Billet Rear Crossmember / Differential Carrier - Street Density

ES#3432222 - 034-505-1000-SD - Billet Rear Crossmember / Differential Carrier - Street Density - Prevents failure of the factory cast aluminum piece - A must-have for drag/road racing - 034Motorsport - Audi

Prevents failure of the factory cast aluminum piece - A must-have for drag/road racing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3432222
Mfg#:
034-505-1000-SD
Ships in 2 Business Days
$441.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lower Control Arm M14 Hardware Kit for B8/B8.5 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5, C7/C7.5 A6/S6/RS6, A7/S7/RS7, & 95B Porsche Macan

ES#4880758 - 034-401-H005 - Lower Control Arm M14 Hardware Kit for B8/B8.5 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5, C7/C7.5 A6/S6/RS6, A7/S7/RS7, & 95B Porsche Macan - This hardware kit contains all hardware required to install a lower front control arm kit for late model B8.5/C7.5 vehicles with M14 hardware. All hardware is high-quality OEM plated. - 034Motorsport - Audi

This hardware kit contains all hardware required to install a lower front control arm kit for late model B8.5/C7.5 vehicles with M14 hardware. All hardware is high-quality OEM plated. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4880758
Mfg#:
034-401-H005
Back Ordered
Auto Notify
$82.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Camber Correcting Density Line Control Arm Kit - Front

Includes lower control arms, upper adjustable control arms, M12 ball joints and all necessary hardware. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with M12 ball joints

Brand:
034Motorsport - Corporate Logo
ES#:
4159576
Mfg#:
034-401-1055
Ships in 2 Business Days
$1306.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Upper Control Arm Bushing Set - Inner - Race

ES#2650527 - PFR3-209Bx4 - Rear Upper Control Arm Bushing Set - Inner - Race - Improves handling and control - Upgrade to a more engaging driving experience - Powerflex Black Series - Audi

Improves handling and control - Upgrade to a more engaging driving experience affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex Black Series - Corporate Logo
ES#:
2650527
Mfg#:
PFR3-209BX4
In Stock
$129.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Track Spec Density Line Control Arm Kit - Front

ES#4159608 - 034-401-1056 - Track Spec Density Line Control Arm Kit - Front - Includes lower control arms, upper adjustable control arms, M14 ball joints and all necessary hardware. - 034Motorsport - Audi

Includes lower control arms, upper adjustable control arms, M14 ball joints and all necessary hardware. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with M14 ball joints

Brand:
034Motorsport - Corporate Logo
ES#:
4159608
Mfg#:
034-401-1056
Back Ordered
$1285.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW H.A.S. - Height Adjustable Spring Kit

ES#3427369 - 253100BH - KW H.A.S. - Height Adjustable Spring Kit - Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear - KW Suspension - Audi

Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models without factory Electronic Damping Control - For models

Brand:
KW Suspension - Corporate Logo
ES#:
3427369
Mfg#:
253100BH
Ships in 4 Business Days
$1284.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW H.A.S. - Height Adjustable Spring Kit

ES#3427372 - 253100BJ - KW H.A.S. - Height Adjustable Spring Kit - Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear - KW Suspension - Audi

Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with factory Electronic Damping Control suspension

Brand:
KW Suspension - Corporate Logo
ES#:
3427372
Mfg#:
253100BJ
Back Ordered
$1284.00 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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