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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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Burger Motorsports Billet Strut Cross Braces - Red - G20 M340i 330i, G42 M240i 230i
Burger Motorsports Billet Strut Cross Braces - Red - G20 M340i 330i, ...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Burger Motorsports - Corporate Logo
T#:637421
Part#: BMSG20BSCB-RED
Ships on Nov 10, 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 - Blue - G20 M340i 330i, G42 M240i 230i
Burger Motorsports Billet Strut Cross Braces - Blue - G20 M340i 330i,...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Burger Motorsports - Corporate Logo
T#:637422
Part#: BMSG20BSCB-BLUE
Ships on Nov 10, 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...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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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MMX F56 Under Body Brace - Front Section
MMX F56 Under Body Brace - Front Section
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MMX Performance - Corporate Logo
T#:4224047
Part#: MMR13-1401-F
Ships in 3 Business Days
$ 195.99 USD
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$ 195.99 USD
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MMX F56 Under Body Brace - Middle Section
MMX F56 Under Body Brace - Middle Section
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MMX Performance - Corporate Logo
T#:4224050
Part#: MMR13-1401-M
Ships in 1 Business Day
$ 212.99 USD
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$ 212.99 USD
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MMX F56 Under Body Brace - Rear Section
MMX F56 Under Body Brace - Rear Section
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MMX Performance - Corporate Logo
T#:4224078
Part#: MMR13-1401-R
Ships in 3 Business Days
$ 212.99 USD
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$ 212.99 USD
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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...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Burger Motorsports - Corporate Logo
T#:637423
Part#: BMSG20BSCB-SIL
Ships on Nov 10, 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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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 - Red - BMW G22/G23/G26 430i M440i
Burger Motorsports Billet Strut Cross Braces - Red - BMW G22/G23/G26 ...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Burger Motorsports - Corporate Logo
T#:46924996
Part#: G22BSCB-RED
Back Ordered
$ 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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MMX Underbody Chassis Brace - F80, F82, F83, F87
MMX Underbody Chassis Brace - F80, F82, F83, F87
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MMX Performance - Corporate Logo
T#:55713525
Part#: MMR13-1000
In Stock
New Item
$ 295.00 USD
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$ 295.00 USD
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The MMX Performance Underbody Chassis Brace is engineered specifically for the F8x platform to eliminate the unwanted flex that plagues the factory mid-section. On the track or your favorite backroad, flex alters your alignment mid-corner, reducing tire contact patch.
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iSweep Power Brace Complete Whole Kit - F55, F56, F57
iSweep Power Brace Complete Whole Kit - F55, F56, F57
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iSWEEP - Corporate Logo
T#:54388392
Part#: ISCCWK-F56
Ships in 9 Business Days
New Item
$ 807.99 USD
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$ 807.99 USD
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Don't let chassis flex compromise your MINI’s handling. From the factory, the F55, F56, and F57 platforms suffer from structural deflection under heavy cornering loads. To extract true track-ready performance and razor-sharp steering response, your chassis needs to be tied together.
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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...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Burger Motorsports - Corporate Logo
T#:46924999
Part#: G22BSCB-BLK
Ships on Nov 10, 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...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Burger Motorsports - Corporate Logo
T#:46924998
Part#: G22BSCB-BLU
Ships on Nov 10, 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...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Burger Motorsports - Corporate Logo
T#:46924997
Part#: G22BSCB-SIL
Ships on Nov 10, 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
aFe CONTROL Front Suspension Brace Set - Black Powder Coat Finish - Toyota A90/91 Supra 2.0/3.0L
aFe CONTROL Front Suspension Brace Set - Black Powder Coat Finish - T...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
AFE - Corporate Logo
T#:4840539
Part#: 450-721003-B
Ships in 2 Business Days
Sale - Save 5% $ 262.00

This product was last offered at the strikethrough price on
10-19-2026

$ 248.90 USD
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Sale - Save 5%
$ 262.00

This product was last offered at the strikethrough price on
10-19-2026

$ 248.90 USD
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Stiffen up your chassis and give your engine bay a unique look with aFe's Control fabricated Strut Braces (also known as Strut Tower Brace or STB). Made with 14-gauge steel, the I-beam design is meticulously TIG welded to form a lightweight, strong brace that will increase front-end rigidity, thus improving turn-in response. aFe Control Suspension products are engineered and manufactured in their Corona, California manufacturing facility. Features: Laser Cut, 14-Gauge Steel TIG Welded I-Beam Design Grade 5 Burnt Blue Titanium Mounting Bolts Durable Wrinkle Black Powder Coat Fits All Supra Models Direct-Fit Installation Requires No Modifications Proudly Made in the USA
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aFe CONTROL Front Suspension Brace Set - Red Powder Coat Finish - Toyota A90/91 Supra 2.0/3.0L
aFe CONTROL Front Suspension Brace Set - Red Powder Coat Finish - Toy...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
AFE - Corporate Logo
T#:4840541
Part#: 450-721003-R
In Stock at Vendor
Sale - Save 5% $ 262.00

This product was last offered at the strikethrough price on
10-19-2026

$ 248.90 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 5%
$ 262.00

This product was last offered at the strikethrough price on
10-19-2026

$ 248.90 USD
Free Shipping on orders $49 and up
Add to Wish List
Stiffen up your chassis and give your engine bay a unique look with aFe's Control fabricated Strut Braces (also known as Strut Tower Brace or STB). Made with 14-gauge steel, the I-beam design is meticulously TIG welded to form a lightweight, strong brace that will increase front-end rigidity, thus improving turn-in response. aFe Control Suspension products are engineered and manufactured in their Corona, California manufacturing facility. Features: Laser Cut, 14-Gauge Steel TIG Welded I-Beam Design Grade 5 Burnt Blue Titanium Mounting Bolts Durable Textured Red Powder Coat Fits All Supra Models Direct-Fit Installation Requires No Modifications Proudly Made in the USA
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aFe CONTROL Front Suspension Brace Set - Raw Stainless Steel Finish - Toyota A90/91 Supra 2.0/3.0L
aFe CONTROL Front Suspension Brace Set - Raw Stainless Steel Finish -...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
AFE - Corporate Logo
T#:4840538
Part#: 450-721003-A
Ships in 2 Business Days
Sale - Save 5% $ 285.00

This product was last offered at the strikethrough price on
10-19-2026

$ 270.75 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 5%
$ 285.00

This product was last offered at the strikethrough price on
10-19-2026

$ 270.75 USD
Free Shipping on orders $49 and up
Add to Wish List
Stiffen up your chassis and give your engine bay a unique look with aFe's Control fabricated Strut Braces (also known as Strut Tower Brace or STB). Made with 14-gauge steel, the I-beam design is meticulously TIG welded to form a lightweight, strong brace that will increase front-end rigidity, thus improving turn-in response. aFe Control Suspension products are engineered and manufactured in their Corona, California manufacturing facility. Features: Laser Cut, 14-Gauge 304 Stainless Steel TIG Welded I-Beam Design Grade 5 Burnt Blue Titanium Mounting Bolts Fits All Supra Models Direct-Fit Installation Requires No Modifications Proudly Made in the USA
Show More Show Less
aFe CONTROL Front Suspension Brace Set - Blue Powder Coat Finish - Toyota A90/91 Supra 2.0/3.0L
aFe CONTROL Front Suspension Brace Set - Blue Powder Coat Finish - To...
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
AFE - Corporate Logo
T#:4840540
Part#: 450-721003-L
Ships in 2 Business Days
Sale - Save 5% $ 262.00

This product was last offered at the strikethrough price on
10-19-2026

$ 248.90 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 5%
$ 262.00

This product was last offered at the strikethrough price on
10-19-2026

$ 248.90 USD
Free Shipping on orders $49 and up
Add to Wish List
Stiffen up your chassis and give your engine bay a unique look with aFe's Control fabricated Strut Braces (also known as Strut Tower Brace or STB). Made with 14-gauge steel, the I-beam design is meticulously TIG welded to form a lightweight, strong brace that will increase front-end rigidity, thus improving turn-in response. aFe Control Suspension products are engineered and manufactured in their Corona, California manufacturing facility. Features: Laser Cut, 14-Gauge Steel TIG Welded I-Beam Design Grade 5 Burnt Blue Titanium Mounting Bolts Durable Blue Powder Coat Fits All Supra Models Direct-Fit Installation Requires No Modifications Proudly Made in the USA
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