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BMW Chassis Reinforcement Kits & Parts

Made in the USAAs much of an "Ultimate Driving Machine" it is, many BMW models unfortunately suffer from weak points in the chassis. Over the years we have uncovered many weak or failure-prone areas in the chassis and have developed our own reinforcing solutions for them. And we continue to be the leading experts on BMW chassis reinforcing. Failures can come from a number, or combination, of causes: improper maintenance, age and mileage, poor design, environmental factors, poor repair work, and over-stressing modifications. The longer you let your car go without repairing or reinforcing these areas, the closer it gets to crumbling apart. Our chassis reinforcement kits are designed to first identify potential weak points and then strengthen and reinforce the existing design.

Most of our kits are not labor intensive although welding is usually required. If you suspect your chassis may have structural problems we recommend taking it to a well-known bodyshop or restoration shop. (find out who your local BMW dealer uses - we sell many of our kits to dealer-authorized repair shops). Making the preventative fix simple and effective is better than a long and complicated repair after the failure. Our kits are not usually used for fixing existing damage (only your body shop can determine the correct course of action). But our kits have been proven under extreme conditions on racetracks around the world to prevent many of the costly - and dangerous - chassis problems.

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4mm Heavy Duty Rear Shock Mount Reinforcement Plate Set
4mm Heavy Duty Rear Shock Mount Reinforcement Plate Set
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ECS - Corporate Logo
T#:376177
Part#: 002478ECS01KT
In Stock
Sale - Save 25% $ 85.99

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

$ 64.48 USD
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$ 85.99

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$ 64.48 USD
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A very common weak point on the 3 series BMW is the sheetmetal of the rear shock tower. The sheetmetal here is relatively thin and very susceptible to stress and fatigue. A worn out shock will bottom-out more often and this energy is transferred through the bump stop and into the metal chassis. Stiffer shocks and shock mounts also put more stress on the sheetmetal. Factor in age, mileage, and environmental conditions and it's not a surprise that we see shock tower failures often. BMW addressed this issue with reinforcements of their own but our's are thicker for additional strength. This kit mounts on top of the shock tower and can either be bolted or welded in place. Because of the shape of the rear shock tower, these do not fit cabrio/convertible cars. 
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Heavy Duty Convertible Rear Shock Mount Reinforcement Plate Set
Heavy Duty Convertible Rear Shock Mount Reinforcement Plate Set ...
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ECS - Corporate Logo
T#:376176
Part#: 002478ECS02KT
In Stock
Sale - Save 25% $ 95.98

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

$ 71.98 USD
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$ 95.98

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

$ 71.98 USD
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The upper rear shock bolts to the sheetmetal in the folding top well on convertible models. As the mileage goes up more and more stress is put on this sheetmetal and it can actually tear away from the rest of the chassis. Look for lttle cracks originating from the mouning holes. This reinforcement plate helps spread the shock loads around the sheetmetal and reduce stress in localized areas. Price is for the pair.
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Heavy Duty Rear Sway Bar Bracket Upgrade - E30
Heavy Duty Rear Sway Bar Bracket Upgrade - E30
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ECS - Corporate Logo
T#:9222692
Part#: 016965LA
In Stock
Sale - Save 25% $ 118.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 89.24 USD
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$ 118.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 89.24 USD
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A major upgrade over the weak stamped steel factory sway bar brackets. These are critical for those running larger, aftermarket sway bars. Includes polyurethane bushings.
ECS Strut Tower Plate Kit - Black
ECS Strut Tower Plate Kit - Black
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:593980
Part#: 001717ECS01
In Stock
$ 193.99 USD
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$ 193.99 USD
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Burger Motorsports Billet Strut Cross Braces - Red - G20 M340i 330i, G42 M240i 230i
Burger Motorsports Billet Strut Cross Braces - Red - G20 M340i 330i, ...
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Burger Motorsports - Corporate Logo
T#:637421
Part#: BMSG20BSCB-RED
Ships on Jul 28, 2026
$ 199.00 USD
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$ 199.00 USD
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Constructed from lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a solid one-piece design. These give an exclusive look under the hood and extra stabilization to the chassis.
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Eventuri BMW G8X M2 / M3 / M4 CSL Carbon Strut Brace - Gloss Finish
Eventuri BMW G8X M2 / M3 / M4 CSL Carbon Strut Brace - Gloss Finish ...
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Eventuri - Corporate Logo
T#:39565572
Part#: EVE-S58-CF-STR
Ships in 3 Business Days
$ 2,195.00 USD
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$ 2,195.00 USD
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Upgrade your BMW G8X M2, M3, or M4 CSL today with the Eventuri BMW G8X M2 / M3 / M4 CSL Carbon Strut Brace - Gloss Finish, and experience enhanced performance, improved handling, and a race-inspired aesthetic under the hood.
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Burger Motorsports Billet Strut Cross Braces - Blue - G20 M340i 330i, G42 M240i 230i
Burger Motorsports Billet Strut Cross Braces - Blue - G20 M340i 330i,...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:637422
Part#: BMSG20BSCB-BLUE
Ships on Jul 28, 2026
$ 199.00 USD
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$ 199.00 USD
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Constructed from lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a solid one-piece design. These give an exclusive look under the hood and extra stabilization to the chassis.
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Burger Motorsports Billet Strut Cross Braces - Black - G20 M340i 330i, G42 M240i 230i
Burger Motorsports Billet Strut Cross Braces - Black - G20 M340i 330i...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:637424
Part#: BMSG20BSCB-BLK
Ships in 7 Business Days
$ 199.00 USD
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$ 199.00 USD
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Constructed from lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a solid one-piece design. These give an exclusive look under the hood and extra stabilization to the chassis.
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Burger Motorsports Billet Strut Cross Braces - Silver - G20 M340i 330i, G42 M240i 230i
Burger Motorsports Billet Strut Cross Braces - Silver - G20 M340i 330...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:637423
Part#: BMSG20BSCB-SIL
Ships on Jul 28, 2026
$ 255.99 USD
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$ 255.99 USD
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Constructed from lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a solid one-piece design. These give an exclusive look under the hood and extra stabilization to the chassis.
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MINI R56 ECS Strut Tower Plate Kit - Black
MINI R56 ECS Strut Tower Plate Kit - Black
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:588743
Part#: 001718ECS01
In Stock
Sale - Save 3% $ 152.99

This product was last offered at the strikethrough price on
06-14-2026

$ 148.40 USD
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Sale - Save 3%
$ 152.99

This product was last offered at the strikethrough price on
06-14-2026

$ 148.40 USD
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Burger Motorsports Billet Strut Cross Braces - Red - BMW G22/G23/G26 430i M440i
Burger Motorsports Billet Strut Cross Braces - Red - BMW G22/G23/G26 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:46924996
Part#: G22BSCB-RED
Ships on Jul 28, 2026
$ 199.00 USD
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$ 199.00 USD
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Burger Motorsports' strut braces are CNC machined from thick, lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a thick, solid one-piece design and give an exclusive look under the hood and extra stabilization to the chassis.
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Burger Motorsports Billet Strut Cross Braces - Black - BMW G22/G23/G26 430i M440i
Burger Motorsports Billet Strut Cross Braces - Black - BMW G22/G23/G2...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:46924999
Part#: G22BSCB-BLK
Ships on Jul 28, 2026
$ 199.00 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 199.00 USD
Free Shipping on orders $49 and up
Add to Wish List
Burger Motorsports' strut braces are CNC machined from thick, lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a thick, solid one-piece design and give an exclusive look under the hood and extra stabilization to the chassis.
Show More Show Less
Burger Motorsports Billet Strut Cross Braces - Blue - BMW G22/G23/G26 430i M440i
Burger Motorsports Billet Strut Cross Braces - Blue - BMW G22/G23/G26...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:46924998
Part#: G22BSCB-BLU
Ships on Jul 28, 2026
$ 199.00 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 199.00 USD
Free Shipping on orders $49 and up
Add to Wish List
Burger Motorsports' strut braces are CNC machined from thick, lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a thick, solid one-piece design and give an exclusive look under the hood and extra stabilization to the chassis.
Show More Show Less
Burger Motorsports Billet Strut Cross Braces - Silver - BMW G22/G23/G26 430i M440i
Burger Motorsports Billet Strut Cross Braces - Silver - BMW G22/G23/G...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:46924997
Part#: G22BSCB-SIL
Ships on Jul 28, 2026
$ 199.00 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 199.00 USD
Free Shipping on orders $49 and up
Add to Wish List
Burger Motorsports' strut braces are CNC machined from thick, lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a thick, solid one-piece design and give an exclusive look under the hood and extra stabilization to the chassis.
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