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Genuine BMW 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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Genuine BMW Ring, Strut Tower Brace, Left - 51618055091
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Genuine BMW - Corporate Logo
T#:115821
Part#: 51618055091
Ships in 1 day
2% off MSRP $ 209.99

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

$ 204.99 USD
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2% off MSRP
$ 209.99

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

$ 204.99 USD
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Connects the strut tower brace bar to the strut tower.


Genuine BMW Ring, Strut Tower Brace, Left
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E90,E92,E93

 

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Genuine BMW Undercar Shield - Subframe Reinforcement Plate - E70 E71 ...
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Genuine BMW - Corporate Logo
T#:54023
Part#: 31106786568
Ships in 1 day
5% off MSRP $ 221.99

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

$ 211.99 USD
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5% off MSRP
$ 221.99

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

$ 211.99 USD
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Genuine BMW Reinforcement Plate -
This item fits the following BMW Chassis:
E70 X5,E71

Genuine BMW Front cross brace - right
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Genuine BMW - Corporate Logo
T#:117669
Part#: 51717180318
Ships in 1 day
3% off MSRP $ 34.99

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

$ 33.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 34.99

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

$ 33.99 USD
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Genuine BMW Crossbrace, Front Right -
This item fits the following BMW Chassis:
F06,F10,F12,F13


Genuine BMW Rear Shock Mount Repair And Reinforcement - Right - E31 ...
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Genuine BMW - Corporate Logo
T#:71253
Part#: 41148152997
Ships in 1 day
$ 28.99 USD
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Genuine BMW SUPPORT FOR SHOCK ABSORBER L

Genuine BMW Rear Chassis Brace
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Genuine BMW - Corporate Logo
T#:60382
Part#: 33326777637
Ships in 1 day
2% off MSRP $ 126.99

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

$ 123.99 USD
2% off MSRP
$ 126.99

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

$ 123.99 USD


Genuine BMW Tension Strut -
This item fits the following BMW Chassis:
E92

Genuine BMW Rear subframe brace - E46 M3
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Genuine BMW - Corporate Logo
T#:12733
Part#: 33312229899
Ships in 4 Business Days
2% off MSRP $ 434.99

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

$ 425.99 USD
2% off MSRP
$ 434.99

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

$ 425.99 USD
Connects the frame rails to the rear subframe - does not include hardware

Genuine BMW Rear Chassis Brace Upgrade - E90 BMW
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Genuine BMW - Corporate Logo
T#:376014
Part#: 33326777637KT
Ships in 1 day
$ 363.99

This product was last offered at the strikethrough price on
07-10-2026

$ 347.99 USD
$ 347.99 USD

Improve the handling of the E90 with a rear chassis brace from the E92. A chassis brace, also known as an A-brace, adds rigidity to the chassis to improve handling.

This kit includes:

Rear chassis brace
Rear push rods - left and right
hardware

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Genuine BMW Reinforcement Plate - Left - E36 M3
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Genuine BMW - Corporate Logo
T#:69355
Part#: 41112256497
Ships in 1 day
2% off MSRP $ 84.99

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

$ 82.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 84.99

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

$ 82.99 USD
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Genuine BMW SPACER RING FOR REAR AXLE RE

E36 Rear Subframe/Chassis Reinforcement Kit
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Genuine BMW - Corporate Logo
T#:3971
Part#: 4111225649
Ships in 4 Business Days
$ 298.52

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

$ 290.02 USD
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$ 290.02 USD
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These are the BMW factory chassis reinforcement plates that came on the E36 M3s (some very early 1994-production M3 models may not have had them). This reinforcement should be done on all non-M E36 models especially when used in track/autocross situations. The kit is a set of 4 plates that are added to reinforce the rear subframe chassis mounts. BMW discovered that over time, due to the bending of the rear of the chassis in conjunction with the movement allowed by the rubber bushings in the rear, the chassis mounting points for the subframe would flex, weaken, and if left unattended, rip out of the chassis. The stock mounts are basically a flat plate with an internally threaded tube that are welded to the chassis. The flex of the rear subframe causes the threaded tube and mounting bolt to act as a lever arm at the point where the flat plate is welded to the chassis, weakening the surrounding sheet metal. Due to the direction of force of the torque applied by the drivetrain on the subframe, the first mount to rip out is the passenger�s side front mount, followed by the drivers side rear mount. Having these plates welded to the underside of the chassis significantly stiffens the mounts and stops the weakening of them.

In order to weld these plates in, the rear suspension, rear subframe, exhaust, and driveshaft must be removed. It is also strongly recommended that the back seat, rear interior, trunk interior, and fuel tank are removed and all fuel lines are capped to reduce the fire hazard while welding.


Note the damaged sheet metal


Sub-frame Removed


Area Prepped and Ready to Weld


Plates Installed



This item fits the following BMWs:
1992-1998 E36 BMW 318i 318is 323is 325i 325is 328i 328is
2/1994-6/1994 E36 BMW M3, although there is no clear transition on when the factory started building M3s with the reinforcements
all 1996-1999 M3s should have these reinforcements. Only early 1995 M3s are in question.
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Genuine BMW Subframe Reinforcement Kit - With Hardware
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Genuine BMW - Corporate Logo
T#:577329
Part#: 41002256495KT2
Ships in 4 Business Days
$ 350.99

This product was last offered at the strikethrough price on
03-04-2026

$ 341.99 USD
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$ 341.99 USD
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Reinforce the weak points of your E36 BMW's chassis with this Genuine BMW reinforcement kit. These plates and hardware reinforce where the subframe meets the chassis to increase the unibody's rigidity, helping to prevent potential damage.

Two studs, two bolts, and two nuts that secure the subframe are all included.

Welding is required, professional installation is recommended.

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Genuine BMW Subframe Reinforcement Kit
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Genuine BMW - Corporate Logo
T#:376158
Part#: 41002256495KT
Ships in 4 Business Days
$ 298.99

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

$ 290.99 USD
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$ 290.99 USD
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If you drive your BMW in a spirited manner, have an extensive list of modifications such as turbo/supercharger or track your BMW, reinforcement of the subframe is a must. E36 BMWs are known for being very capable machines, but they are also known for less than stellar subframe rigidity. With this kit, it will reinforce where the subframe meets the chassis, making for a much stronger and much more rigid frame. You will notice sharper and more precise handling, and you can stop worrying about costly chassis/subframe damage.

Welding is required, professional installation is recommended.

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Genuine BMW E36 X-Brace Trim Cross Reinforcement
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Genuine BMW - Corporate Logo
T#:12599
Part#: 51718410212
Ships in 1 day
2% off MSRP $ 749.99

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

$ 734.99 USD
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2% off MSRP
$ 749.99

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

$ 734.99 USD
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Original BMW chassis reinforcement developed for the special M3 LTW (Lightweight) model. This tubular-steel part connects the front subframe to the body and gives the car a more solid feel with less flex. Every convertible and Roadster model uses a similar design to address inherent chassis flex in the front of the car. Fits all E36 and Z3 chassis BMWs. 

By adding this Genuine BMW Motorsport cross brace, you'll dramatically reduce that flex and movement in the front half of the body on your E36. This is a must-have on any BMW E36 that has an upgraded suspension, larger sway bars, is driven aggressively or sees ANY amount of track time. The Xbrace is a factory BMW Motorsport part, so design and fit are both great and the installation is straight forward and easy. Perhaps best of all is the low price compared to the impact the Motorsport X-brace has on the E36 chassis. Does not come with any needed hardware for installation.

We also offer the E36 x-brace with the required hardware Click Here
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