BMW Chassis Reinforcement Kits & Parts for BMW 3 Series E36 (1992-1998)

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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
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ECS - Corporate Logo
T#:376177
Part#: 002478ECS01KT
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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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E36, E46 Rear Shock Tower Mount Reinforcement Kit
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Turner Motorsport - Corporate Logo
T#:3440
Part#: TSU9975100
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$ 50.14 USD
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Made in the USA 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.

This item fits the following BMWs:
1992-1999 E36 BMW 318i 318is 318ti 323is 325i 325is 328i 328is M3 - not for convertibles
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 - not for convertibles
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E36 Turner Motorsport Billet X-Brace Reinforcement Kit
Does not 1994 and older production date with Automatic Transmission. They have an extra...
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Turner Motorsport - Corporate Logo
T#:4056343
Part#: 016865LA01KT
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$ 422.09 USD
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Here at Turner Motorsport we love our classic Bmw's and are more excited than ever to focus on upgrades for the enthusiasts such as ourselves. With the prices of E36s going up and the unobtainable M3 LTW being just that, unobtainable, we decided to focus on what we have and what everyone else is able to get. It seems by now all of the E36's have been fitted with upgraded suspensions and sway bars which we have a large selection of. We found a missing part to our mission critical performance E36 project and that is the X-brace. Since the LTW is fitted with a factory X-Brace the engineers here at Turner decided to take it a few steps further. Starting with idea of improving structure and handling on the factory x-brace we thought "how could we make it better?” Before we knew it we had full 6061-T6 billet aluminum that would surpass the factory X-Brace soo much that they shouldn't even be classified on the same spectrum.

Our Turner X-Brace starts off with a solid block of 6061-T6 billet aluminum that is machined to precise tolerances, utilizing both factory mounting locations and efficiency. The brace then gets drilled and tapped to fit the modular mounting brackets perfectly before being anodized in the beautiful Turner blue. To finish off the fine details the X-Brace is assembled with zinc-plated hardware for superior corrosion resistance for time to come.
Design:

6061-T6 billet aluminum construction
Utilizes factory mounting locations with new hardware included
Direct bolt on without modification
Fits all E36 coupe and sedan models
X-Brace and brackets anodized turner blue
Assembly hardware include
Performance:

Stiffer chassis bracing between steering rack and rear portion of subframe.
Improve steering feel and handling
Oil pan protection from damage
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E36 Front Subframe Reinforcement Kit
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Turner Motorsport - Corporate Logo
T#:3642
Part#: TDR3675301
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$ 35.48 USD
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Sale - Save 56%
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Made in the USA The motor mount area on a subframe is one of those easily-forgotton areas that may be hiding a serious problem. The subframe on the E36 has a gusset ('ear') welded on for the motor mounts. These gussets take the stress of the motor mount as the engine torques (more upgrades = more torque = more stress). Worn motor mounts only transfer more stress to the subframe. Unfortunately, the gusset is not well-reinforced from the factory and cracks can develop along the welds and the gusset begins to collapse. A total failure of the guesset will shift your engine to the side and forward, taking out many other components along the way and leading to a very costly repair.

The next time you replace the motor mounts, oil pan gasket, checking your oil pump nut, or any other time you drop the front subframe, you should install these reinforcements. This kit comes with steel reinforcing plates that are welded to the underside of the guesset as well as plates to close off the bottom of the gusset for extra strength. Instructions included (or see the link below).

Click Here for Installation Instructions.

This item fits the following BMWs:
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
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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E36 Rear Sway Bar Reinforcement Kit
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Turner Motorsport - Corporate Logo
T#:3644
Part#: TSU3675001
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$ 61.59 USD
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$ 61.59 USD
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Made in the USA E36 cars with swaybar upgrades will develop cracks where the swaybar bushing mounts to the subframe. The problem becomes worse for cars that are tracked or drifted. Because the swaybar tab is un-reinforced from the factory, you can end up with flexing and twisting which will eventually weaken the welds and snap the tab from the subframe. By welding in this reinforcement you can prevent the mount from twisting. This will go a long way towards preventing a bothersome repair down the road.

Click here for installation instructions.

This item fits the following BMWs:
1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
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Rear Chassis Reinforcement Kit
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Condor Speed Shop - Corporate Logo
T#:597378
Part#: E36REARCHASSISRK
Ships in 5 Business Days
$ 84.99 USD
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$ 84.99 USD
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Condor Speed Shop's .125" steel Rear Chassis Reinforcement Kit includes everything you need to reinforce the back half of your chassis. The subframe plates are designed to reinforce the subframe mounting points on the chassis of your e36. This is where cracks usually start to form. You can use these plates to repair a cracked chassis or to prevent cracks from forming and avoid costly repairs. The front mounting point of the rear trailing arm is a known area of failure on track-driven E36s. This is a must-have reinforcement. This 6-piece reinforcement plate kit reinforces the stock pocket bungs to prevent failure. .125 (1/8) inch thick 4 rear subframe reinforcement plates 2 rear trailing arm reinforcement plates *Requires welding, professional installation is recommended.*
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X-Brace Hardware Kit - E36
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Turner Motorsport - Corporate Logo
T#:4056342
Part#: 016865LA01-01
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$ 61.19 USD
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Condor Speed Shop Rear Trailing Arm Pocket Reinforcement Plates - E36...
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Condor Speed Shop - Corporate Logo
T#:577570
Part#: REIPLTRTAB36
Ships in 3 Business Days
$ 49.00 USD
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Condor's Rear Trailing Arm Pocket Reinforcement Kit is one of the few kits in which the plate is not cut in the shape of a "C". A lot of companies cut them with an opening in order to have less waste when cutting. Their plates are fully connected all the way around making them stronger. This is a must-have reinforcement. The front mounting point of the rear trailing arm is a known area of failure on track driven E36s. Condor's 2-piece reinforcement plate kit reinforces the stock pocket bungs to prevent failure. Welding is required, includes rosette holes. *Does not fit 318ti.
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E36 3-series Complete Turner Motorsport Reinforcement Package ...
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Turner Motorsport - Corporate Logo
T#:338986
Part#: T36REINF
Ships in 4 Business Days
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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:

This item fits the following BMWs:
1992-1998 E36 BMW 318i 318is 323is 325i 325is 328i 328is - Not M3

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Extreme Duty ZF Transmission Brace - E36
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Rally Road - Corporate Logo
T#:401465
Part#: B027
Ships on Jul 27, 2026
$ 152.99 USD
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$ 152.99 USD
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Rally Road Productions, Inc. is a team supported by a group of people with great abilities in their area of expertise. From the "web guy" and driving instructor friends, to owners of various machine shops, they have surrounded ourselves with people that can be trusted to create and manufacture quality products. This is the key to ensuring everything that they sell will perform as it was intended. The goal is to increase customer satisfaction and make the customization or performance enhancement of your vehicle a more enjoyable venture.

Have you ever snapped a transmission brace under full throttle? NOT a fun experience. For that reason, Rally Road has come up with the very last transmission brace your E36 will ever need. 

Back when the minds at BMW set out to design the E36's lower transmission support, they executed perfectly. A cast piece manufactured from lightweight aluminum would surely provide the proper support for the business end of the powertrain. This part functioned fine...mostly...when the vehicle was driven modestly. However, push it too hard and this brace becomes perfectly unusable when it snaps in half. 

This upgraded piece is manufactured out of solid steel. Laser cut, precision CNC bent, and then tig welded together - this thing is ready to take a beating. Finish it off with a flawless black powder coat and what you have is a transmission brace that is as beautiful as it is bulletproof. Whether you're considering this as an alternative to an already broken piece or just shopping for your next mod, this is a must-have for ANY E36 owner.

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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 6, 2026
Sale - Save 23% $ 448.99

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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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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

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$ 8.68 USD
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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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