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Audi S4 Coilovers

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

Brand:
Solo-Werks - Corporate Logo
ES#:
4055298
Mfg#:
SWSPANNERS
Ships on Aug 5, 2026
$50.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4758655 - 68525017 - KW 8mm Rebound Adjustment Extension - 300mm Long - These rebound extensions aim to make adjusting your coilovers more accessible - KW Suspension - Audi Volkswagen

These rebound extensions aim to make adjusting your coilovers more accessible affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
KW Suspension - Corporate Logo
ES#:
4758655
Mfg#:
68525017
Ships in 4 Business Days
$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4140395 - 68525014 - KW Rebound Extension - 8mm Wrench - 150mm Long - These rebound extensions aim to make adjusting your coilovers more accessible and are availablie in a variey of sizes. Be sure to verify the correct size of the piston rod hex before ordering. - KW Suspension - Audi Volkswagen

These rebound extensions aim to make adjusting your coilovers more accessible and are availablie in a variey of sizes. Be sure to verify the correct size of the piston rod hex before ordering. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
KW Suspension - Corporate Logo
ES#:
4140395
Mfg#:
68525014
Ships in 4 Business Days
$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3638940 - 700006 - Replacement Spanner Wrench Set - V2.0 2016+ Design - Replacement Spanner Set for Current 2016+ Design Solo Werks S1 Coilover kits - includes main perche and locking perch wrenches - Solo-Werks - Audi

Replacement Spanner Set for Current 2016+ Design Solo Werks S1 Coilover kits - includes main perche and locking perch wrenches affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Solo-Werks - Corporate Logo
ES#:
3638940
Mfg#:
700006
Ships on Jul 27, 2026
$25.00 USD
Free Shipping
on orders $49 and up
ES#3675621 - S-05E-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

Brand:
BC Racing - Corporate Logo
ES#:
3675621
Mfg#:
S-05E-BR
Ships on Jul 28, 2026
$1345.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4872465 - S-05-DS - DS Series Coilover Suspension Kit - Featuring 30 levels of adjustment and increased damping force at low speed piston velocities - BC Racing - Audi

Featuring 30 levels of adjustment and increased damping force at low speed piston velocities affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BC Racing - Corporate Logo
ES#:
4872465
Mfg#:
S-05-DS
Ships on Jul 28, 2026
$1445.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2102369 - 35210078 - KW V3 Series Coilover Kit - The ultimate in coilover technology featuring double adjustable dampening - KW Suspension - Audi

The ultimate in coilover technology featuring double adjustable dampening affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits avant models without factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2102369
Mfg#:
35210078
Ships in 4 Business Days
$3394.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3020358 - 10210035 - V1 Series Coilover System - The best balance between sporty driving and comfort - KW Suspension - Audi

The best balance between sporty driving and comfort affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits sedan models only.
Fits sedan models only. Range of lowering is 0.4-1.5" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
3020358
Mfg#:
10210035
Ships in 4 Business Days
$2094.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Unrivaled comfort and performance. Average lowering of 1.3"-2.3"F 1.2"-2.0"R 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!
Cabriolet models only

Brand:
H&R - Corporate Logo
ES#:
2807045
Mfg#:
29310-1
Ships in 3 Business Days
$1293.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

The ultimate in coilover technology, featuring double adjustable damping affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For sedan models without Electronic Damping Control and a 48.5mm front strut body. Range of lowering is 0.4-1.4" front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
4056870
Mfg#:
352100BM
Ships in 4 Business Days
$3094.00 USD
Free Shipping
ES#5375563 - S-28-ER - ER Series Coilover Suspension Kit - B9 Audi A4/S4 - Get the high quality, unique features of the BC Racing "BR" and "RM" series with the added benefit of an external reservoir for superior performance! - BC Racing - Audi

Get the high quality, unique features of the BC Racing "BR" and "RM" series with the added benefit of an external reservoir for superior performance! 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#:
5375563
Mfg#:
S-28-ER
Back Ordered
$2255.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4424822 - S-28-BR - BR Series Coilover Suspension Kit - B9 Audi A4/S4 - Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! 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#:
4424822
Mfg#:
S-28-BR
Back Ordered
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5375567 - S-27-DS - DS Series Coilover Suspension Kit - B9 Audi A4/S4 - BC Racing took the best features from their BR Series Coilover, engineered components to improve driver experience, and are proud to present the BC Racing DS series with digressive piston damping that dramatically improves suspension feel and feedback. - BC Racing - Audi

BC Racing took the best features from their BR Series Coilover, engineered components to improve driver experience, and are proud to present the BC Racing DS series with digressive piston damping that dramatically improves suspension feel and feedback. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 7/11/2016 with 53mm front strut body without factory Electronic Damping Control.

Brand:
BC Racing - Corporate Logo
ES#:
5375567
Mfg#:
S-27-DS
Back Ordered
$1395.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5375516 - S-35-DS - DS Series Coilover Suspension Kit - B9 Audi A4/S4 - BC Racing took the best features from their BR Series Coilover, engineered components to improve driver experience, and are proud to present the BC Racing DS series with digressive piston damping that dramatically improves suspension feel and feedback. - BC Racing - Audi

BC Racing took the best features from their BR Series Coilover, engineered components to improve driver experience, and are proud to present the BC Racing DS series with digressive piston damping that dramatically improves suspension feel and feedback. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 7/11/2016 with 53mm front strut body with factory Electronic Damping Control.

Brand:
BC Racing - Corporate Logo
ES#:
5375516
Mfg#:
S-35-DS
Back Ordered
$1395.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5375566 - S-27-ER - ER Series Coilover Suspension Kit - B9 Audi A4/S4 - Get the high quality, unique features of the BC Racing "BR" and "RM" series with the added benefit of an external reservoir for superior performance! - BC Racing - Audi

Get the high quality, unique features of the BC Racing "BR" and "RM" series with the added benefit of an external reservoir for superior performance! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 7/11/2016 with 53mm front strut body without factory Electronic Damping Control.

Brand:
BC Racing - Corporate Logo
ES#:
5375566
Mfg#:
S-27-ER
Back Ordered
$2255.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5375564 - S-28-DS - DS Series Coilover Suspension Kit - B9 Audi A4/S4 - BC Racing took the best features from their BR Series Coilover, engineered components to improve driver experience, and are proud to present the BC Racing DS series with digressive piston damping that dramatically improves suspension feel and feedback. - BC Racing - Audi

BC Racing took the best features from their BR Series Coilover, engineered components to improve driver experience, and are proud to present the BC Racing DS series with digressive piston damping that dramatically improves suspension feel and feedback. 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#:
5375564
Mfg#:
S-28-DS
Back Ordered
$1395.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Coilovers

Whether you need precise adjustments to your suspension settings to hit that perfect setup on the track or want to dial in your ride height for impeccable fitment, coilovers are the best bang for your buck. Find all the best coilover suspension brands like BC Racing, Bilstein, KW, ECS, Solo-Werks, Moton/AST, and more right here at ECS.

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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