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BMW E46 Suspension Braces & Reinforcement Parts

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Rear Subframe/Chassis Reinforcement Kit - E46

ES#3006359 - TDR4675412 - Rear Subframe/Chassis Reinforcement Kit - E46 - Say goodbye to torn subframe mounting! The industry standard in weld-in E46 subframe reinforcement. Updated in 2020 to provide additional reinforcement! - Turner Motorsport - BMW
ECS Tuning recommends this product.

Say goodbye to torn subframe mounting! The industry standard in weld-in E46 subframe reinforcement. Updated in 2020 to provide additional reinforcement! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Turner Motorsport - Corporate Logo
ES#:
3006359
Mfg#:
TDR4675412
In Stock
ON SALE! SAVE 30%
$193.99

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

$135.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Top-Side Rear Subframe Reinforcement Brace

ES#4698886 - 048697LA01KT - E46 Top-Side Rear Subframe Reinforcement Brace - Prevent costly RACP failure and add much-needed strength to the rear end of your E46! - Turner Motorsport - BMW

Prevent costly RACP failure and add much-needed strength to the rear end of your E46! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Turner Motorsport - Corporate Logo
ES#:
4698886
Mfg#:
048697LA01KT
Ships in 5 Business Days
ON SALE! SAVE 28%
$415.99

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

$299.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Strut Tower Bar

ES#3677066 - MRSBE46FU1P - Front Strut Tower Bar - Ties the front strut towers together for less chassis flex and quicker response. - Megan Racing - BMW

Ties the front strut towers together for less chassis flex and quicker response. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Megan Racing - Corporate Logo
ES#:
3677066
Mfg#:
MRSBE46FU1P
In Stock
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Upper Strut Mount Reinforcement Plate - Priced Each - E46

ES#128656 - 51717036781 - Front Upper Strut Mount Reinforcement Plate - Priced Each - E46 - Highly recommended upgrade to drastically reduce mushrooming and other strut tower deformation - Genuine BMW - BMW

Highly recommended upgrade to drastically reduce mushrooming and other strut tower deformation Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Some trimming of reinforcement plate may be required.

Brand:
Genuine BMW - Corporate Logo
ES#:
128656
Mfg#:
51717036781
In Stock
$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Slon Workshop E46 M3 Carbon Front Triangulating Reinforcement Kit

ES#4849874 - SL0N-E46-3CFTR - Slon Workshop E46 M3 Carbon Front Triangulating Reinforcement Kit - Reinforce your E46 M3 the right way! - Slon Workshop - BMW

Reinforce your E46 M3 the right way! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Slon Workshop - Corporate Logo
ES#:
4849874
Mfg#:
SL0N-E46-3CFTR
Ships in 8 Business Days
$4650.00 USD
Free Shipping

Rear Trailing Arm Bushing Limiter Set

ES#2721244 - 003301ECS01AKT - Rear Trailing Arm Bushing Limiter Set - Improve handling and extend bushing life - all while maintaining ride quality! - ECS - BMW

Improve handling and extend bushing life - all while maintaining ride quality! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
2721244
Mfg#:
003301ECS01AKT
In Stock
ON SALE!
$88.99

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

$84.54 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Carbon Fiber Strut Bar Kit - Silver

ES#10997 - ECSCF03B03-ACE - ECS Carbon Fiber Strut Bar Kit - Silver - Reduce chassis flex with this lightweight strut bar - ECS - BMW

Reduce chassis flex with this lightweight strut bar 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
10997
Mfg#:
ECSCF03B03-ACE
In Stock
ON SALE!
$280.99

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

$266.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heavy Duty Rear Shock Mount Reinforcement Plate Set

ES#2642687 - 002478ECS01KT - Heavy Duty Rear Shock Mount Reinforcement Plate Set - Thicker construction (4mm) than Z3 plates with a matte zinc finish. Brawny and beautiful! - ECS - BMW

Thicker construction (4mm) than Z3 plates with a matte zinc finish. Brawny and beautiful! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
2642687
Mfg#:
002478ECS01KT
In Stock
ON SALE! SAVE 25%
$85.99

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

$64.48 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Racing Dynamics Front Strut Brace

ES#3023767 - 1969946012 - Racing Dynamics Front Strut Brace - Reduce chassis flexing - quality performance from one of the original BMW tuners! Polished bar design with Racing Dynamics featured prominently. - Racing Dynamics - BMW

Reduce chassis flexing - quality performance from one of the original BMW tuners! Polished bar design with Racing Dynamics featured prominently. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Racing Dynamics - Corporate Logo
ES#:
3023767
Mfg#:
1969946012
In Stock
$245.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Upper Strut Mount Reinforcement Plate - Priced Each - E46

ES#4759334 - 51717036781 - Front Upper Strut Mount Reinforcement Plate - Priced Each - E46 - Highly recommended upgrade to drastically reduce mushrooming and other strut tower deformation - URO - BMW

Highly recommended upgrade to drastically reduce mushrooming and other strut tower deformation 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4759334
Mfg#:
51717036781
Back Ordered
$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Carbon Fiber Strut Bar Kit - Black

ES#10995 - ecscf03bw03aceb - ECS Carbon Fiber Strut Bar Kit - Black - Reduce chassis flex with this lightweight strut bar - ECS - BMW

Reduce chassis flex with this lightweight strut bar 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Not compatible with coilovers that have adjustable dampening knobs on top.

Brand:
ECS - Corporate Logo
ES#:
10995
Mfg#:
ECSCF03BW03ACEB
In Stock
ON SALE! SAVE 10%
$350.99

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

$315.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Rear Shock Mounts - Polyurethane

ES#3477070 - IRPRTM-P - Performance Rear Shock Mounts - Polyurethane - Don't suffer from shock mount blow out again! - IRP - Individual Racing Parts - BMW

Don't suffer from shock mount blow out again! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
IRP - Individual Racing Parts - Corporate Logo
ES#:
3477070
Mfg#:
IRPRTM-P
In Stock
$110.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Suspension Reinforcement Kit

ES#2718690 - 002478ECS01KT - Suspension Reinforcement Kit - Includes ECS RTAB limiter, rear shock tower reinforcement plates and BMW Strut tower plates. - Assembled By ECS - BMW

Includes ECS RTAB limiter, rear shock tower reinforcement plates and BMW Strut tower plates. 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Assembled By ECS - Corporate Logo
ES#:
2718690
Mfg#:
002478ECS01KT
Back Ordered
ON SALE! SAVE 14%
$256.99

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

$221.81 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Subframe Brace

ES#128604 - 51717028433 - Front Subframe Brace - Used to protect oil pan and triangulate subframe for correct handling - Genuine BMW - BMW

Used to protect oil pan and triangulate subframe for correct handling Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For vehicles with production date from 02/2001

Brand:
Genuine BMW - Corporate Logo
ES#:
128604
Mfg#:
51717028433
In Stock
2% off MSRP

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

$318.99

This product was last offered at the strikethrough price on
10-26-2026

$312.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Rear Shock Mount Reinforcement - Priced each

ES#3673835 - B3300044 - Rear Shock Mount Reinforcement - Priced each - Mounts on the top of the rear shock mount, creating a much stiffer mounting point. - Bavarian Autosport - BMW

Mounts on the top of the rear shock mount, creating a much stiffer mounting point. 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For coupe models only

Brand:
Bavarian Autosport - Corporate Logo
ES#:
3673835
Mfg#:
B3300044
In Stock
ON SALE! SAVE 17%
$11.99

This product was last offered at the strikethrough price on
08-17-2026

$9.99 USD
Free Shipping
on orders $49 and up
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 BMW

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Manufacturer names and/or part numbers are used only for identification purposes.

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