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Audi B9 A4 Quattro 2.0T

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Audi B9 A4 Quattro 2.0T Performance Suspension Parts & Upgrades

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APR Strut Tower Brace (B9 Chassis)

ES#4899232 - SUS00027 - APR Strut Tower Brace (B9 Chassis) - Direct bolt-on strut brace engineered to enhance chassis rigidity, reduce flex, and improve handling for a more connected driving experience. - APR - Audi

Direct bolt-on strut brace engineered to enhance chassis rigidity, reduce flex, and improve handling for a more connected driving experience. Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4899232
Mfg#:
SUS00027
Ships on Oct 27, 2026
ON SALE! SAVE 10%
$349.99

This product was last offered at the strikethrough price on
09-28-2026

$314.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Air Lift Performance 3P Digital Air Management

ES#2966720 - 27680 - Air Lift Performance 3P Digital Air Management - The most advanced pressure based control with 1/4" manifold - Air Lift - Audi BMW Volkswagen Mercedes Benz MINI Porsche

The most advanced pressure based control with 1/4" manifold

Brand:
Air Lift - Corporate Logo
ES#:
2966720
Mfg#:
27680
In Stock at Vendor
$1932.69

This product was last offered at the strikethrough price on
08-02-2026

$1407.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ST XA Coilover Kit - Adjustable Dampening

ES#4389619 - 182100BH - ST XA Coilover Kit - Adjustable Dampening - ST XTA coilovers offer high performance handling with adjustable rebound dampening. - Suspension Techniques - Audi

ST XTA coilovers offer high performance handling with adjustable rebound dampening. For models with build date up to 7/11/16, w/ 53mm front strut body

Brand:
Suspension Techniques - Corporate Logo
ES#:
4389619
Mfg#:
182100BH
Ships in 4 Business Days
$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - Extreme Low

ES#4424821 - S-27E-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 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#:
4424821
Mfg#:
S-27E-BR
Ships on Dec 1, 2026
$1345.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

220MM Coilover Damping Extensions

ES#4872123 - 004673LA01 - 220MM Coilover Damping Extensions - Adjust your damping without removing your interior! - ECS - Audi BMW Volkswagen MINI Porsche

Adjust your damping without removing your interior! 10X Entries Into Our F80 M3 Sweepstakes
10X Entries For Our Spin To Win Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4872123
Mfg#:
004673LA01
In Stock
ON SALE! SAVE 10%
$37.99

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

$34.19 USD
Free Shipping
on orders $49 and up

Bilstein B16 PSS10 Suspension System

ES#4370310 - 48-275071 - Bilstein B16 PSS10 Suspension System - Height adjustable suspension system offering adjustable compression and rebound to dial in for competition, comfort, or anywhere in between. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Audi

Height adjustable suspension system offering adjustable compression and rebound to dial in for competition, comfort, or anywhere in between. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
Without Electronic Suspension

Brand:
Bilstein - Corporate Logo
ES#:
4370310
Mfg#:
48-275071
Ships in 3 Business Days
31% off MSRP

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

$3573.00

This product was last offered at the strikethrough price on
10-09-2026

$2473.00 USD
Free Shipping

Density Line Control Arm Kit Upper Adjustable - Track Spec

ES#4630174 - 034-401-1070 - Density Line Control Arm Kit Upper Adjustable - Track Spec - Gain additional negative camber for increased cornering grip and improved handling performance. - 034Motorsport - Audi

Gain additional negative camber for increased cornering grip and improved handling performance. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4630174
Mfg#:
034-401-1070
Ships in 2 Business Days
$1226.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

X-Clear Driveshaft Tunnel Brace

ES#4381928 - 034-603-0029 - X-Clear Driveshaft Tunnel Brace - Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration. - 034Motorsport - Audi

Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4381928
Mfg#:
034-603-0029
In Stock
$151.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit - B9 Audi A4/S4

ES#4872510 - S-35-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! 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#:
4872510
Mfg#:
S-35-BR
Ships on Dec 1, 2026
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pro-Kit Performance Springs

ES#4140195 - E10-15-023-04-22 - Pro-Kit Performance Springs - High performance handling & aggressive looks - Average lowering of 1.2" front and rear - Eibach - Audi

High performance handling & aggressive looks - Average lowering of 1.2" front and rear

Brand:
Eibach - Corporate Logo
ES#:
4140195
Mfg#:
E10-15-023-04-22
Back Ordered
10% off MSRP

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

$439.99

This product was last offered at the strikethrough price on
10-09-2026

$395.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lowering Springs

ES#4830683 - CTS-LS-025 - Lowering Springs - 1 lowering on average for front and Rear - CTS - Audi

1″ lowering on average for front and Rear

Brand:
CTS - Corporate Logo
ES#:
4830683
Mfg#:
CTS-LS-025
Ships on Nov 13, 2026
ON SALE! SAVE 15%
$249.99

This product was last offered at the strikethrough price on
09-29-2026

$212.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V1 Series Coilover Kit

ES#3979096 - 102100BM - V1 Series Coilover Kit - Variant 1 coilovers offer the best balance between sporty driving and comfort - KW Suspension - Audi

Variant 1 coilovers offer the best balance between sporty driving and comfort For models without factory Electronic Damping Control - For models with 48.5mm front strut body. Range of lowering is 1.2-2.2" in the front and 1.4-2.4" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
3979096
Mfg#:
102100BM
Back Ordered
$2244.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V1 Series Coilover Kit

ES#3979094 - 102100bh - V1 Series Coilover Kit - Variant 1 coilovers offer the best balance between sporty driving and comfort - KW Suspension - Audi

Variant 1 coilovers offer the best balance between sporty driving and comfort For models without factory Electronic Damping Control - For models with 50mm front strut body. Range of lowering is 1.2-2.2" in the front and 1.4-2.4" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
3979094
Mfg#:
102100BH
Back Ordered
$2244.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Billet Tunnel Brace - Black

ES#3476922 - 023781ECS01-01 - Audi B9 Billet Tunnel Brace - Black - Replace your small and weak stamped brace with heavy-duty billet aluminum! - ECS - Audi

Replace your small and weak stamped brace with heavy-duty billet aluminum! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3476922
Mfg#:
023781ECS01-01
In Stock
ON SALE! SAVE 20%
$168.99

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

$135.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Performance Air Ride Kit

ES#3972077 - 78670 - Rear Performance Air Ride Kit - Allow your B9 Audi to sit on the ground! - Air Lift - Audi

Allow your B9 Audi to sit on the ground!

Brand:
Air Lift - Corporate Logo
ES#:
3972077
Mfg#:
78670
Ships in 4 Business Days
$1889.99 USD
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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Manufacturer names and/or part numbers are used only for identification purposes.

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