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BMW E46 M3 S54 3.2L

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BMW E46 M3 S54 3.2L Suspension Braces & Reinforcement Parts

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V-Brace Chassis Support

ES#4635577 - RE.899 - V-Brace Chassis Support - An upgraded support over the OE v-brace, this connects the frame rails to the rear subframe. - Rogue Engineering - BMW

An upgraded support over the OE v-brace, this connects the frame rails to the rear subframe. 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:
Rogue Engineering - Corporate Logo
ES#:
4635577
Mfg#:
RE.899
Ships on Nov 20, 2026
$595.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Racing Dynamics Front Strut Brace

ES#3035900 - 1969946100 - E46 Racing Dynamics Front Strut Brace - A performance upgrade to reduce chassis flex - from one of the original BMW tuners! Scaffold design with classic Racing Dynamics crest. - Racing Dynamics - BMW

A performance upgrade to reduce chassis flex - from one of the original BMW tuners! Scaffold design with classic Racing Dynamics crest. 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#:
3035900
Mfg#:
1969946100
In Stock
$325.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Shock Tower Mount Reinforcement Kit

ES#3006352 - TSU9975100 - Rear Shock Tower Mount Reinforcement Kit - Prevent stress cracking and torn sheetmetal! - Turner Motorsport - BMW

Prevent stress cracking and torn sheetmetal! 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#:
3006352
Mfg#:
TSU9975100
In Stock
ON SALE! SAVE 15%
$58.99

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

$50.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Shock Mount Reinforcement Plate - Priced Each

ES#4147028 - 51718413359 - Rear Shock Mount Reinforcement Plate - Priced Each - Mounts on top of the rear shock - URO - BMW

Mounts on top of the rear shock 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#:
4147028
Mfg#:
51718413359
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Strut Tower Brace

ES#3149002 - D180-0464 - Strut Tower Brace - Preserves chassis integrity & improves handling - a high-end accessory for the discerning enthusiast - Dinan - BMW

Preserves chassis integrity & improves handling - a high-end accessory for the discerning enthusiast Call In Or Chat For Best Price! 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:
Dinan - Corporate Logo
ES#:
3149002
Mfg#:
D180-0464
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$519.99

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

$467.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Suspension Reinforcement Kit

ES#2718691 - 002478ECS02KT - 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
For convertible models only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2718691
Mfg#:
002478ECS02KT
Back Ordered
ON SALE! SAVE 14%
$266.99

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

$230.31 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Rear subframe brace

ES#57284 - 33312229899 - E46 M3 Rear subframe brace - Connects the frame rails to the rear subframe - does not include hardware - Genuine BMW - BMW

Connects the frame rails to the rear subframe - does not include hardware 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:
Genuine BMW - Corporate Logo
ES#:
57284
Mfg#:
33312229899
Ships in 1-2 days
2% off MSRP

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

$434.99

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

$425.99 USD
This product is lifetime replacement eligible Lifetime Replacement

E46 Dinan Shock Tower Brace

ES#4213479 - D180-0461 - E46 Dinan Shock Tower Brace - 1999-2006 BMW 323I/325I/328I/330I/M3 - Dinan - BMW

1999-2006 BMW 323I/325I/328I/330I/M3 Call In Or Chat For Best Price! 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 sedan and coupe models only

Brand:
Dinan - Corporate Logo
ES#:
4213479
Mfg#:
D180-0461
In Stock
ON SALE! SAVE 10%
$425.99

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

$383.36 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Subframe Reinforcement Kit

ES#3028124 - TDR4675F99 - Front Subframe Reinforcement Kit - Say goodbye to cracked subframes! The industry standard in weld-in E46 subframe reinforcement. - Turner Motorsport - BMW

Say goodbye to cracked subframes! The industry standard in weld-in E46 subframe 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#:
3028124
Mfg#:
TDR4675F99
In Stock
ON SALE! SAVE 77%
$79.99

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

$18.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Subframe Reinforcement Kit

ES#3438864 - 13-005 - Rear Subframe Reinforcement Kit - Fix for the most common structural E46 issue. - Active Autowerke - BMW

Fix for the most common structural E46 issue. 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:
Active Autowerke - Corporate Logo
ES#:
3438864
Mfg#:
13-005
Ships in 3 Business Days
5% off MSRP

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

$149.00

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

$142.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Trailing Arm Limiter Set - Black Polyurethane

ES#4069724 - 093031010 - Rear Trailing Arm Limiter Set - Black Polyurethane - Daystar - BMW

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:
Daystar
ES#:
4069724
Mfg#:
093031010
Ships in 1 Business Day
$32.35

This product was last offered at the strikethrough price on
07-15-2026

$24.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cap - Pack Of 10

ES#2588205 - 51717896829KT - Cap - Pack Of 10 - Covers the nuts on the strut tower brace - Genuine BMW - BMW

Covers the nuts on the strut tower brace 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:
Genuine BMW - Corporate Logo
ES#:
2588205
Mfg#:
51717896829KT
In Stock
$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Rear Shock Mounts - Pillow Ball Bearing

ES#3477069 - IRPRTM-B - Performance Rear Shock Mounts - Pillow Ball Bearing - 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#:
3477069
Mfg#:
IRPRTM-B
Special Order: No Guaranteed ETA
$185.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cap - Priced Each

ES#73206 - 46511234785 - Cap - Priced Each - Covers the nuts on the strut tower brace - Genuine BMW - BMW

Covers the nuts on the strut tower brace 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:
Genuine BMW - Corporate Logo
ES#:
73206
Mfg#:
46511234785
In Stock
3% off MSRP

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

$3.98

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

$3.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Shock Mount Upper Reinforcement Plates

ES#4465480 - IRPRSMP-30 - Rear Shock Mount Upper Reinforcement Plates - Strengthen your Rear suspension and drive without worry! - IRP - Individual Racing Parts - BMW

Strengthen your Rear suspension and drive without worry! 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#:
4465480
Mfg#:
IRPRSMP-30
In Stock
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW E30 / E36 / E46 / Z3 / Z4 Rear Shock Mount - 10 Mm

ES#4845876 - PFR5-5630-10H - BMW E30 / E36 / E46 / Z3 / Z4 Rear Shock Mount - 10 Mm - This mount provides increased durability and improved handling, making it ideal for both daily driving and spirited driving conditions. - Powerflex - BMW

This mount provides increased durability and improved handling, making it ideal for both daily driving and spirited driving conditions. 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:
Powerflex - Corporate Logo
ES#:
4845876
Mfg#:
PFR5-5630-10H
Ships in 1 Business Day
$137.99 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.

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

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