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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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MINI R56 ECS Strut Tower Plate Kit - Black
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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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$ 152.99

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

$ 148.40 USD
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E30 Complete Turner Motorsport Reinforcement Package
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Turner Motorsport - Corporate Logo
T#:338985
Part#: T30REINF
Ships on Oct 7, 2026
Sale - Save 3% $ 281.99

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

Starting at $ 273.51 USD
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$ 281.99

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

Starting at $ 273.51 USD
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There are a lot of enthusiasts still committed to the E30 3-series. For these owners, giving up their 318, 325, or M3 is out of the question. We've tried to make it harder for them to part with their cars by developing reinforcements for common weak areas of the E30 chassis. With these pieces, you can prevent a costly repair or total failure that could cost you lots of money. These are a must-have for any E30 restoration (yes, restoration is the right word these days) or even during normal suspension work. Included in this package are reinforcements for:

 

This item fits the following BMWs:
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is M3

 

 

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E46 Complete Turner Motorsport Reinforcement Package
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Turner Motorsport - Corporate Logo
T#:1372
Part#: T46REINF
Ships on Oct 7, 2026
Sale - Save 20% $ 464.99

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

$ 371.99 USD
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Sale - Save 20%
$ 464.99

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

$ 371.99 USD
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The E46 is by no means a very old car. But more and more E46s are seeing track use or being converted to all-out track cars. And the odometers aren't rolling backwards. With age, mileage, and hard use the chassis will develop weak points that threaten the overall integrity of the car. When suspension points and subframes start to rip from the car, it puts the driver and anyone else at a serious safety risk. Not to mention the obvious effects on the performance of the car. TMS has developed reinforcements for the most-common weak points in the E46 chassis. With these kits in place you can be sure that your car spends less time on a body rack and more time on the race track. Included in this package are all of the reinforcements we developed for the E46:
 

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E36 3-series M3 Complete Turner Motorsport Reinforcement Package ...
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Turner Motorsport - Corporate Logo
T#:338987
Part#: T36REINF-M3
Ships on Oct 7, 2026
Sale - Save 23% $ 448.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 345.30 USD
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Sale - Save 23%
$ 448.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 345.30 USD
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Let's face it, the E36 is an old chassis but it's still the most popular car to build for track-use. But because of it's age, certain parts of the chassis are prone to structural failure. We've been racing the E36 for over ten years so we know what the weak points are and how to make them stronger. Included with this package are the reinforcement kits that are absolutely necessary for a car that sees any time on the track. Street cars will also benefit from these pieces as your car can take almost as much of beating on the road as on the racetrack.Buy as a package and save 10%! Package includes reinforcements for the following areas:

 

 

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Karbonius E36 M3 / 3-Series Carbon Strut Brace
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Karbonius Composites - Corporate Logo
T#:28104803
Part#: E36SB01
Back Ordered
Starting at $ 839.00 USD
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Starting at $ 839.00 USD
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Strut tower bar is one of the most common and effective upgrades in a vehicle. With installation of strut bar bodywork gets structural strength, preventing tower flex and alignment changes during sporty driving. Improve your BMW with Karbonius strut bar and prepare for people staring! In Karbonius Composites, we have inspired in E46 BMW performance strut bar to create our own strut bar. We have designed a piece extremely strong but light at the same time, what adds not only strength and stability, but also a spectacular eye-catching look. A strut bar manufactured in prepreg carbon fiber and cured in aluminum mold in autoclave; CNC machined manufactured in 5-axis machine. Standard finish includes varnish high gloss and natural aluminum anodized. Product Details: Fits all E36 and M3 2x2 weave Very light, only 1150 grs weight Perfect fitment and easy installation 100% carbon fiber prepreg Cured in aluminum mold and autoclave Controlled break zone Exclusive and numbered piece 2-year warranty NOTE: All pieces are numbered to guarantee authenticity and origin.
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Genuine BMW Combination Nut - 33306787062
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Genuine BMW - Corporate Logo
T#:59963
Part#: 33306787062
In Stock
$ 8.99 USD
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Ensure the secure assembly of your BMW with the Genuine BMW Combination Nut - 33306787062. This essential component is crafted to BMW's exacting standards, ensuring reliability and durability. Ideal for various BMW models, it serves as a critical fastening element in the vehicle's assembly. Upgrade to this genuine BMW part to maintain the integrity of your vehicle's components and ensure optimal performance.

  • Genuine BMW part guarantees authenticity and superior quality.
  • Precision-engineered for exact fit and functionality.
  • Enhances reliability and durability of BMW assemblies.
  • Essential for secure fastening in vehicle applications.
  • Ensures consistent performance and peace of mind.

Upgrade your BMW with the Genuine BMW Combination Nut - 33306787062 for reliable and secure assembly across various models.

Genuine BMW Combination Nut - M14X1,5-10Znniv
This item fits the following BMW Chassis:
E60 M5,E63 M6,E70 X5M,E71 X6M,E82 1M Coupe,E63,E65,E70 X5,E71 X6,E82,E89 Z4,E90,E92,E93,F01,F02,F06,F10,F12,F13,F15,F16,F22,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83,i3i12

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Genuine BMW Hexagon Nut With Collar - 33326768884
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Genuine BMW - Corporate Logo
T#:60338
Part#: 33326768884
In Stock
$ 3.00

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

$ 2.99 USD
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$ 2.99 USD
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Genuine BMW Hexagon Nut With Collar - M10-10 Zns3
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E89 Z4,E90,E92,E93,F22,F25 X3,F26 X4 X4,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83,i3i12

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Genuine BMW Pin M8X18 Zns3 - 31336765744 - E30,E34,E36,E38,E53 ...
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Genuine BMW - Corporate Logo
T#:7763
Part#: 31336765744
In Stock
$ 1.99 USD
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Genuine BMW Pin - M8X18 Zns3
This item fits the following BMW Chassis:
E30 M3,E36 M3,E34 M5,E30,E34,E36,E38,E53 X5


Genuine BMW F80 M3, F82 M4 Locking Nut - 31106767496
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Genuine BMW - Corporate Logo
T#:53988
Part#: 31106767496
In Stock
18% off MSRP $ 9.69

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

$ 7.93 USD
Free Shipping on orders $49 and up
18% off MSRP
$ 9.69

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

$ 7.93 USD
Free Shipping on orders $49 and up


Genuine BMW Locking Nut - M12X1,5-10 Zns3
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E89 Z4,E90,E92,E93,F80 M3,F82 M4,F83


E36, E46, Z3 Rear Shock Mount Reinforcement (Sold Each)
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Bavarian Autosport - Corporate Logo
T#:578621
Part#: B3300044
In Stock
Sale - Save 3% $ 8.99

This product was last offered at the strikethrough price on
05-03-2026

$ 8.68 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 8.99

This product was last offered at the strikethrough price on
05-03-2026

$ 8.68 USD
Free Shipping on orders $49 and up
This is a direct replacement for the factory BMW rear shock mount reinforcement, as equipped by BMW on Z3 models. This also fits all E36 and E46 models as well. Turner Motorsport makes our own that are thicker but these can also do a good job of preventing cracks and deformation of the rear shock towers. Priced per reinforcement plate. Order 2 to cover both rear shock towers. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty. This item fits the following BMWs: 1992-1999 E36 BMW 318i 318is 318ti 318ic 323is 325i 325is 328i 328is M3 (not for convertible models) 1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 (not for convertible models) 1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
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Rear Shock Mount Reinforcement Plate - Priced Each - E30 E36 E46 Z3 ...
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:598534
Part#: 51718413359
In Stock
$ 12.99 USD
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Discover the Turner Motorsport URO Rear Shock Mount Reinforcement Plate, individually priced for E30, E36, E46, and Z3 BMW models. This mounting plate provides essential support at the rear shock mounting point, enhancing stability and durability. Engineered by URO, renowned for quality auto parts, this reinforcement plate is designed to address and prevent issues related to the rear shock mounting, ensuring a reliable and secure connection for a variety of BMW models.

  • Individually priced for cost-effective customization.
  • Enhances support at the rear shock mounting point.
  • Designed for E30, E36, E46, and Z3 BMW models.
  • URO quality ensures durability and reliability.
  • Addresses and prevents issues related to rear shock mounting.

Upgrade your BMW's rear shock mounting system with the Turner Motorsport URO Rear Shock Mount Reinforcement Plate for increased stability and longevity.

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Genuine BMW Hexagon Screw With Flange - 07119906489
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Genuine BMW - Corporate Logo
T#:27880
Part#: 07119906489
In Stock
$ 7.34 USD
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Genuine BMW Hexagon Screw With Flange
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E90,E92,E93,F01,F02,F06,F10,F12,F13,F22,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83

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