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Audi S4 Suspension Braces & Reinforcement Parts

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Racingline Billet Body Brace

ES#3570410 - VWR814100 - Racingline Billet Body Brace - Sharpen up your B9 Audi's handling response and steering feel! - Racingline - Audi

Sharpen up your B9 Audi's handling response and steering feel!

Brand:
Racingline - Corporate Logo
ES#:
3570410
Mfg#:
VWR814100
Ships in 1 Business Day
$558.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers & Billet Aluminum Front Strut Brace and Thrust Arm Monoball Upgrade Kit

ES#4751642 - 000745LA01EBKT - B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers & Billet Aluminum Front Strut Brace and Thrust Arm Monoball Upgrade Kit - Features 32 way adjustable damping, variable length and zinc-coated shock bodies and provides additional support to the strut towers for flex reduction to enhance your driving experience while eliminate deflection caused by stock rubber bushings! - Enthusiast Bundles - Audi

Features 32 way adjustable damping, variable length and zinc-coated shock bodies and provides additional support to the strut towers for flex reduction to enhance your driving experience while eliminate deflection caused by stock rubber bushings! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
For the curved control arm

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751642
Mfg#:
000745LA01EBKT
In Stock
ON SALE! SAVE 29%
$1968.97

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

$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Front Strut Brace

ES#3970173 - 034-603-0010 - Billet Aluminum Front Strut Brace - Designed to limit lateral deflection from the strut towers and improve handling performance without sacrificing ride quality - 034Motorsport - Audi

Designed to limit lateral deflection from the strut towers and improve handling performance without sacrificing ride quality

Brand:
034Motorsport - Corporate Logo
ES#:
3970173
Mfg#:
034-603-0010
In Stock
ON SALE! SAVE 10%
$554.00

This product was last offered at the strikethrough price on
06-28-2026

$498.60 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM Drive Train Stabilizer (DTS) for B5 A4/S4 and C5 A6

ES#4045938 - B5C5DTS - JHM Drive Train Stabilizer (DTS) for B5 A4/S4 and C5 A6 - The JHM DTS is a straight bolt on upgrade using factory mounting points already on your car. NO cutting or welding needed! - JH Motorsports - Audi

The JHM DTS is a straight bolt on upgrade using factory mounting points already on your car. NO cutting or welding needed!

Brand:
JH Motorsports - Corporate Logo
ES#:
4045938
Mfg#:
B5C5DTS
Ships in 2 Business Days
$399.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Rear Lower Control Arm Brace - Audi B8 A4/A5/S4/S5

ES#3478040 - 008050ecs01KT - Rear Lower Control Arm Brace - Audi B8 A4/A5/S4/S5 - Provides additional support to the rear lower control arms for flex reduction to enhance your driving experience - ECS - Audi

Provides additional support to the rear lower control arms for flex reduction to enhance your driving experience 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3478040
Mfg#:
008050ECS01KT
Ships on Oct 5, 2026
Auto Notify
ON SALE! SAVE 25%
$187.99

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

$140.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Strut Tower Brace

ES#441697 - 8E1805645 - Strut Tower Brace - Direct replacement - Genuine Volkswagen Audi - Audi

Direct replacement

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
441697
Mfg#:
8E1805645
Ships in 4 Business Days
ON SALE!
$169.99

This product was last offered at the strikethrough price on
06-15-2026

$156.57 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

X-Brace Stretch Bolt Subframe Hardware

ES#4020195 - 034-603-Z005 - X-Brace Stretch Bolt Subframe Hardware - We recommend using these new factory stretch bolts to install the 034Motorsport Billet Aluminum X-Brace Chassis Reinforcement Upgrade. - 034Motorsport - Audi

We recommend using these new factory stretch bolts to install the 034Motorsport Billet Aluminum X-Brace Chassis Reinforcement Upgrade.

Brand:
034Motorsport - Corporate Logo
ES#:
4020195
Mfg#:
034-603-Z005
In Stock
ON SALE! SAVE 10%
$42.00

This product was last offered at the strikethrough price on
06-28-2026

$37.80 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

underbody crossmember

ES#437817 - 8E0804813C - underbody crossmember - Secures across the driveshaft tunnel in the center underside of the vehicle - Genuine Volkswagen Audi - Audi

Secures across the driveshaft tunnel in the center underside of the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
437817
Mfg#:
8E0804813C
Special Order: No Guaranteed ETA
8% off MSRP

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

$96.99

This product was last offered at the strikethrough price on
07-18-2026

$88.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Subframe Support Bracket - Right

ES#429742 - 8D0399542B - Front Subframe Support Bracket - Right - Supports to rear of the subframe to the vehicle - Genuine Volkswagen Audi - Audi Volkswagen

Supports to rear of the subframe to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
429742
Mfg#:
8D0399542B
Ships in 2 Business Days
6% off MSRP

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

$51.99

This product was last offered at the strikethrough price on
07-18-2026

$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Strut Tower Brace

Replace your bent or damage part

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2523243
Mfg#:
8K0805629D
Ships in 8 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.

$99.99

This product was last offered at the strikethrough price on
07-18-2026

$91.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Suspension Braces & Reinforcement Parts

Low-cost bracing adds rigidity and reduces chassis flex for improved handling performance. Enhance the effectiveness of your suspension upgrades and premium tires with carefully placed braces.

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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