Free Shipping on orders $99 and up! Some exclusions apply. Contiguous US only.

BMW Chassis Reinforcement Kits & Parts

BMW Chassis Reinforcement Kits & Parts As 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.
For accurate results, specify your model below.
E82, E9X Front Strut Tower Reinforcement Plates (Pair) Made in the USA Help preserve the structural integrity of your BMW E82 1-series, or E90, E91, E92, or E93 3-series with these weld-in strut tower reinforcement plates. Deformation of the front upper strut tower has been common problem, especially in race-prepped cars, cars with lowered suspensions, any car that sees track use, or BMWs driven on rough roads. The strut tower deforms from suspension bottoming out, forces generated by the spring/shock assembly, and that forced concentrated in a relatively small area on the strut tower. The strut tower will exhibit deforming by cracking (especially around the stud holes), or "mushrooming" where the tower takes on a dome-shaped top instead of being flat. By thickening the sheetmetal material of the tower, you are making it stronger and more robust to prevent deformation. While the E82 and E9x cars are newer and better made than the previous E36 and E46 cars, any suspension modification or track use will make the new cars more susceptible to this problem.

These are mounted on the underside of the strut tower and need to be welded into place.

This chassis reinforcement fits the following BMWs:
2008+ E82 BMW 128i 135i
2006+ E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335i 335xi 335i xDrive M3
2007+ E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive M3
2007+ E93 BMW 328i 328xi 328i xDrive 335i 335xi 335i xDrive M3
Turner Motorsport
Part #: TSU9075STR
Price: $49.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
Heavy Duty Convertible Rear Shock Mount Reinforcement Plate Set 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.
ECS
Part #: 002478ECS02KT
Price: $35.00 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
Genuine BMW Ring, Strut Tower Brace, Right - 51618055092

Connects the strut tower brace bar to the strut tower.

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

 

Genuine BMW
Part #: 51618055092
Price: $58.62 (USD) 
$66.60 (12% off MSRP)
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
E36 Front Subframe Reinforcement Kit 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
Turner Motorsport
Part #: TDR3675301
Price: $44.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
ECS Strut Tower Plate Kit - Silver - MINI R55, R56, R57, R58, R59

ECS Strut Tower Plates serve the important purpose of preventing front strut tower deformation and failure.  Due to the factory tight MINI suspensions, spirited driving, aftermarket suspension components, deteriorated roads, and aging daily drivers,  MINIs are all prone to the same fate; a mushroomed front shock tower.

The ECS Front Strut Tower Plates are protection in a plate, reinforcing the tower and reducing the risk of mushrooming and deformation.

These 15mm thick plates were CAD designed using simulation to maximize stiffness, and precision CNC machined from billet 6061-T6 aluminum then black anodized for a perfect fit and exceptional corrosion resistance.  Sets include proprietary chromoly, heat treated, and nickel plated steel fastening nuts to give our plates the ultimate look and protection.

This set includes the driver and passenger side front plate with the six fastening nuts.

This item fits the following BMWs: 
2007-2013 R56 MINI MINI Cooper 
2008-2014 R55 MINI MINI Cooper Convertible, MINI Cooper S Convertible. 
2009-2014 R57 MINI MINI Cooper S
2012-2014 R58 MINI MINI Cooper, MINI Cooper S
2012-2014 R59 MINI MINI Cooper, MINI Cooper S

ECS
Part #: 001718ECS02
Price: $92.30 (USD) 
$119.95
Limited Qty Sale
In Stock
Free Shipping Free Shipping
Quantity:   
Genuine BMW Structured Foam 400Ml - 83190007361

This is used to help reinforce the subframe and its mounting points. The extra strength helps prevent cracking and splitting in certain weak points that were later identified by BMW and remedied by using this for support.


Genuine BMW Structured Foam - 400Ml

Genuine BMW
Part #: 83190007361
Price: $86.23 (USD) 
$106.66 (19% off MSRP)
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
Genuine BMW E36 X-Brace Trim Cross Reinforcement 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
Genuine BMW
Part #: 51718410212
Price: $272.74 (USD) 
$305.55 (11% off MSRP)
In Stock
Free Shipping Free Shipping
Quantity:   
RKP Corner Brace (Raw Finish) - F87 M2

Add structural rigidity to the front end of your M2 with RKP's corner brace kit. 

This product fits the following BMWs:
2016+ F87 M2

RKP
Part #: RKP-F87-CB
Price: $995.00 (USD) 
Direct Ship
Quantity:   
E46 Front Subframe Reinforcement Kit 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 E46 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 sheetmetal will fatigue over time even though the gusset is reinforced from the factory. Check for cracks along the welds and an uneven plane from the subframe to the gusset. 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.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci M3
Turner Motorsport
Part #: TDR4675F99
Price: $44.95 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
E30 Rear Sway Bar Reinforcement Kit

Save 20%

A suspension mount is designed to take the stress and force of a suspension. A modified suspension, however, puts more stress on that mount. Time is not kind to mounts either, especially when they're metal and have been exposed to the elements. In the E30 rear sway bar, the bushing mounts to a tab coming off the rear trunk floor. Unfortuntately, the tab is insufficiently reinforced from the factory. As the tab flexes it will stress and tear the mounting tab off the chassis. A car that is babied and not driven hard may not suffer from this failure. But most E30s are in enthusiast hands now and are driven aggressively. If you don't reinforce the rear swaybar bushing mount IT WILL fail - no doubt about it.

This kit includes two factory U-shaped brackets with extra gusset reinforcement, installation hardware, and instructions. Each reinforced bracket bolts to your car's trunk (drilling required). Any sway bar bushing designed to be used with the stock bushing brackets will work with our kit, making this compatible with many sway bar upgrade packages!

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

Turner Motorsport
Part #: TSU3075308
Price: $124.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
ECS Strut Tower Plate Kit - Black - MINI R55, R56, R57, R58, R59

ECS Strut Tower Plates serve the important purpose of preventing front strut tower deformation and failure.  Due to the factory tight MINI suspensions, spirited driving, aftermarket suspension components, deteriorated roads, and aging daily drivers,  MINIs are all prone to the same fate; a mushroomed front shock tower.

The ECS Front Strut Tower Plates are protection in a plate, reinforcing the tower and reducing the risk of mushrooming and deformation.

These 15mm thick plates were CAD designed using simulation to maximize stiffness, and precision CNC machined from billet 6061-T6 aluminum then black anodized for a perfect fit and exceptional corrosion resistance.  Sets include proprietary chromoly, heat treated, and nickel plated steel fastening nuts to give our plates the ultimate look and protection.

This set includes the driver and passenger side front plate with the six fastening nuts.

This item fits the following BMWs: 
2007-2013 R56 MINI MINI Cooper 
2008-2014 R55 MINI MINI Cooper Convertible, MINI Cooper S Convertible. 
2009-2014 R57 MINI MINI Cooper S
2012-2014 R58 MINI MINI Cooper, MINI Cooper S
2012-2014 R59 MINI MINI Cooper, MINI Cooper S

 

ECS
Part #: 001718ECS01
Price: $119.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
Genuine BMW Support For Shock Absorber Right - 41148169028 - E36, E36 M3

The rear shock mounting point is a weak spot for E36's. If the sheet metal around your mounting point is splitting, cracked, or if you are just looking for additional reinforcement, this pressed weld-in reinforcement is the perfect part to repair your rear sheet metal.

Genuine BMW Support For Shock Absorber Right
This item fits the following BMW Chassis:
E36 M3,E36
 

 

Genuine BMW
Part #: 41148169028
Price: $49.50 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
ECS Strut Tower Plate Kit - Black - MINI R50, R52, R53

ECS Strut Tower Plates serve the important purpose of preventing front strut tower deformation and failure.  Due to the factory tight MINI suspensions, spirited driving, aftermarket suspension components, deteriorated roads, and aging daily drivers,  MINIs are all prone to the same fate; a mushroomed front shock tower.

The ECS Front Strut Tower Plates are protection in a plate, reinforcing the tower and reducing the risk of mushrooming and deformation.

These 15mm thick plates are CAD designed using simulation to maximize stiffness, and precision CNC machined from billet 6061-T6 aluminum then black anodized for a perfect fit and exceptional corrosion resistance.  Sets include proprietary chromoly, heat treated, and nickel plated steel fastening nuts to give our plates the ultimate look and protection.

This set includes the driver and passenger side front plate with the six fastening nuts.

This item fits the following BMWs: 
2002-2008 R50 MINI MINI Cooper 
2005-2008 R52 MINI MINI Cooper Convertible, MINI Cooper S Convertible. 
2002-2008 R53 MINI MINI Cooper S 

ECS
Part #: 001717ECS01
Price: $119.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
Genuine BMW Ring, Strut Tower Brace, Left - 51618055091

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

 

Genuine BMW
Part #: 51618055091
Price: $58.62 (USD) 
$75.61 (22% off MSRP)
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
E36, E46 Rear Shock Tower Mount Reinforcement Kit 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
Turner Motorsport
Part #: TSU9975100
Price: $31.95 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
E30 Front Subframe Reinforcement Kit As E30s get older they develop cracks and bends in places that see a lot of stress. One of the most stressful areas is the front subframe, especially because of worn motor mounts. A sure sign that your subframe is not holding up is that paint will chip and peel from the stressed area. It's a good idea to reinforce your front subframe the next time you're doing any suspension work and a must when replacing motor mounts.

This kit installs on the underside of the motor mount gusset and reinforces the upper sheetmetal of the gusset as well as closing off and reinforcing the lower section. Requires welding. Kit includes 2 motor mount reinforcements, 2 subframe "ear" reinforcements, and instructions.

This item fits the following BMWs:
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is M3
Turner Motorsport
Part #: TDR3075001
Price: $29.95 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
Genuine BMW Strut Tower Bracket, Right - 51717895250

Connects the strut brace bar to the strut tower.

 

GENUINE BMW BRACKET RIGHT

Genuine BMW
Part #: 51717895250
Price: $122.57 (USD) 
$141.60 (13% off MSRP)
In Stock
Free Shipping Free Shipping
Quantity:   
E30 Complete Turner Motorsport Reinforcement Package

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

 

 

Turner Motorsport
Part #: T30REINF
Price: $179.85 (USD) 
In Stock
Free Shipping Free Shipping
IRP Adjustable Front Strut Brace - E36 BMW

A strut tower brace adds additional reinforcement to the front strut towers, tying them together for extra rigidity. This makes the whole structure stronger with less chassis flex. Handling and steering feel are improved with better turn-in and input with no downsides. 

The IRP adjustable strut brace bar is a high quality brace that is constructed of 100% steel for guaranteed reinforcement and prevention of flex. The brace bar is painted black to ensure corrosion protection and to add to the looks of the engine bay.

Easily installed with basic hand tools.

Fits the following BMW chassis:
E36 BMW All Submodels

IRP - Individual Racing Parts
Part #: IRPFSB-36
Price: $119.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
E46 Rear Sway Bar Reinforcement Kit Made in the USA The BMW E46 3-Series chassis is one of the most rigid and well built BMW chassis to date. Even so, it still has some of the traditional BMW weak points. One of these is the rear sway bar / swaybar mounts. From chassis to chassis the problem has not been identical, but all the damage we have seen has been related to metal fatigue. The metal fatigue is due to the constant twisting and side loading of the sway bar. These forces on the sway bar will cause the mounting points to fail over time. The failure can happen faster with sway bar bind due to improper maintenance of the bushings. However, proper sway bar bushing maintenance does not totally eliminate the problem. In the case of the E46 the sheet metal for the bushing bracket does not have enough material to support the loads being transferred to the subframe. We have designed the reinforcement to strengthen and redirect the load to stronger sheet metal. Requires Welding. Does not fit M3.

Click here for installation instructions.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
Turner Motorsport
Part #: TSU4675461
Price: $39.95 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
E36 3-series M3 Complete Turner Motorsport Reinforcement Package

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:

 

 

Turner Motorsport
Part #: T36REINF-M3
Price: $275.15 (USD) 
In Stock
Free Shipping Free Shipping
Genuine BMW Support For Shock Absorber Left - 41148169027 - E36, E36 M3

The rear shock mounting point is a weak spot for E36's. If the sheet metal around your mounting point is splitting, cracked, or if you are just looking for additional reinforcement, this pressed weld-in reinforcement is the perfect part to repair your rear sheet metal.


Genuine BMW Support For Shock Absorber Left
This item fits the following BMW Chassis:
E36 M3,E36

 

Genuine BMW
Part #: 41148169027
Price: $49.50 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
Heavy Duty Rear Shock Mount Reinforcement Plate Set 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. 
ECS
Part #: 002478ECS01KT
Price: $29.00 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
E46 Complete Turner Motorsport Reinforcement Package

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:
 

Turner Motorsport
Part #: T46REINF
Price: $301.65 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
Turner Motorsport Rear Trailing Arm Bushing Limiter Kit (RTAB Shim Kit)

Turner Motorsport Bushing Limiters were the first - and still the best - RTAB Limiter on the market. Instead of a 'floating' design that can rattle and wear, our aluminum Limiters are fixed in place and feature an anti-stick Teflon coating so the bushing never sticks and squeaks.

The great defect in the rear trailing arm bushing (RTAB) is that the soft rubber design allows too much movement and extension during cornering. The bushing is not strong enough to resist hard cornering loads. A stiffer bushing helps but has trade-offs in ride and comfort. If you want to maintain your ride comfort with rubber bushings, these RTAB Limiters will prolong their life and improve handling.

These Limiters sit on either side of the bushing and limit its movement. By limiting motion the bushing effectively becomes stiffer, improving handling and reducing toe change during cornering. When not cornering, the Limiters are not in play so ride comfort remains the same as stock. Our Limiters are permanently bolted to the housing that surrounds the bushing. Other types of Limiters 'float' between the bushing and housing, which can rattle and squeak as the bushings move. Instead of plastic or Delrin that will wear over time, our RTAB Limiters are made from aluminum with a tough hardcoat anodize (tougher than standard anodizing) and finished with a Teflon anti-stick coating.

Turner RTAB Limiter Kit includes -

  • set of 4 anodized aluminum bushing limiters
  • 5mm Allen bolts and washers
  • install template

Need E36/E46 RTAB bushings? Click here for replacement trailing arm bushings.

Click for installation instructions.

 

This item fits the following BMWs:
1992-1999 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
2003-2010 E83 BMW X3 2.5 X3 3.0 X3 3.0si
2002-2008 E85 E86 BMW Z4 2.5 Z4 3.0 Z4 3.0i Z4 3.0si Z4 M Coupe Z4 M Roadster

Turner Motorsport
Part #: TSU9990001
Price: $89.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
Genuine BMW E36, Z3 Strut Tower Reinforcement Plates (Pair) The shock towers on the E36 and Z3 are notoriously weak. Under normal driving conditions with a stock, fresh suspension it is unlikely that you will ever have a problem. But with an upgraded street or race suspension with firm springs much of the energy from pounding the road is transmitted to the thin sheet metal in the strut tower. This pounding will cause the tower to deform or even crack. Look for 'mushrooming' or deformity around the holes for the three mounting studs at the top of the strut tower. The sheetmetal around the holes should really be flat and square. Poor shocks or stiff suspensions will actually cause this sheetmetal to pop up.

These factory BMW reinforcement plates will help disperse the energy and save you from costly repairs in the future. A strut brace also helps to prevent this but these plates are designed to reinforce the strut tower from the bottom. The install over your strut mount or camber plate and simply add thickness (strength) to the strut tower. They can be sandwiched in place and do not require welding. BMW part number 31312489795

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. Note: some Z3 models already come from the factory with these plates.
Genuine BMW
Part #: 31312489795K
Price: $39.88 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
E30 M3 Front Sway Bar Reinforcement Kit Made in the USA Every E30 M3 that comes into our shop gets the front swaybar tab inspected. This is such a common problem but with an easy fix. If left to worsen you may be looking at an entire strut housing replacement. Fix it now with these reinforcing plates and a little welding! Not only will modified suspensions put stress on the mounts but age will reduce their strength as well. Reinforcing the swaybar mount to the strut will keep your swaybar geometry in spec and prevent a costly and ugly repair.

This item fits the following BMWs:
1987-1991 E30 BMW M3
Turner Motorsport
Part #: TSU3075312
Price: $14.95 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
Race Skids Front Cross Brace Reinforcement - E30 RWD

The E30 has been and still is one of best cars to take to the track. It has proven to hold its own even against newer models of vehicles and leave many in the dust! Unfortunately, due to its design, this chassis allows for a noticeable about of chassis flex, so much so, that it can directly affect the steering response and the driver's ability to effectively control the car. This could cause you to lose the edge when driving aggressively or on tracks that often twist and turn.

To counter this, Race Skids provides a heavy duty Cross Brace Reinforcement that assists with keeping body flex controlled, tightening up the suspension and giving the car a much tighter feel! Reducing body flex helps to keep everything properly aligned, ensuring the best steering control and response possible.

These work great for mildly driven street vehicles and are even better for vehicles that see a lot of track time. Reinforce your vehicle's sub-frame and frame to tie in the rest of your suspension upgrades and give you a major advantage!

This cross brace is powder coated to prevent rust and corrosion from eating away at the welds, keeping this brace as strong as possible for a long time to come. Installation hardware is include for a simple installation process.

Fits the following BMW's:
1984-1991 E30 BMW RWD Models

Want to install it yourself? Check out the Installation PDF

Race Skids
Part #: RSE30CB
Price: $309.95 (USD) 
Direct Ship
Quantity:   
E36 Rear Sway Bar Reinforcement Kit 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
Turner Motorsport
Part #: TSU3675001
Price: $39.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
E36 3-series Complete Turner Motorsport Reinforcement Package

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

Turner Motorsport
Part #: T36REINF
Price: $240.20 (USD) 
In Stock
Free Shipping Free Shipping
E46 M3 Complete Turner Motorsport Reinforcement Package

Save 20%

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:
 

Turner Motorsport
Part #: T46REINF-M3
Price: $251.80 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
E36 Rear Subframe/Chassis Reinforcement Kit 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.
Genuine BMW
Part #: 4111225649
Price: $92.64 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
E36, E46, Z3 Factory BMW Rear Shock Mount Reinforcement (Sold Each)

This is 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.

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

Genuine BMW
Part #: 51718413359
Price: $21.31 (USD) 
$24.64 (14% off MSRP)
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
IRP Adjustable Front Strut Brace - E34 BMW

A strut tower brace adds additional reinforcement to the front strut towers, tying them together for extra rigidity. This makes the whole structure stronger with less chassis flex. Handling and steering feel are improved with better turn-in and input with no downsides. 

The IRP adjustable strut brace bar is a high quality brace that is constructed of 100% steel for guaranteed reinforcement and prevention of flex. The brace bar is painted black to ensure corrosion protection and to add to the looks of the engine bay.

Easily installed with basic hand tools.

Fits the following BMW chassis:
E34 BMW All Submodels

IRP - Individual Racing Parts
Part #: IRPFSB-34
Price: $119.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
E46 Rear Chassis/Subframe Reinforcement Kit The E46 rear driveline and suspension are very similar to that of the E36. An unfortunate side effect of this is that the E46 also shares some of the same problems as the E36. One of these problems is the rear mounting points for the subframe, which can rip out from their spots in the sheet metal. This happens because the rear differential transmits the torsional load from the engine through the subframe, then into the chassis. This constant loading and unloading weakens the sheet metal and causes it to fatigue and separate from the chassis. BMW tried to fix this problem in the E46 by placing a cross member on the front two mounting points of the subframe. This cross member keeps the front mounting points from having problems by placing the bushing and the stud in double-sheer, thus reducing the twisting action on the sheet metal. The unfortunate side effect of this is that the load from the front of the subframe now gets transmitted to the left rear of the subframe. This is where we have seen many failures of the chassis on low mileage street cars and race cars. BMW has also tried to prevent the issue by injecting foam into the open space between the underside of the chassis and the top of the trunk. This seems to work but that does not address the issues of the spot welds failing on the sheetmetal. It can also make any additional work there harder and almost impossible to weld against. Our reinforcement kit has proven over and over again to be effective and the easiest to work with in the long run.

This product reinforces the chassis sheet metal at the subframe mounting points. We do this by thickening the metal and distributing the load over a larger area. This kit will save time when repairing the chassis, and is also strongly recommended as a preventative maintenance item.

Photo Gallery: E46 Subframe Failure / Repair

Click here for installation instructions.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
Turner Motorsport
Part #: TDR4675412
Price: $139.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
Genuine BMW Strut Brace Bracket, Left - 51717895249 - E46 M3

Connects the strut brace bar to the strut tower.

GENUINE BMW BRACKET LEFT:517160

Genuine BMW
Part #: 51717895249
Price: $101.69 (USD) 
$118.13 (14% off MSRP)
Ships in 2 days
Free Shipping Free Shipping
Quantity:   
Dinan Performance Subframe/Differential Mount Reinforcement Kit - E39

Weak points in the BMW chassis can lead to costly repairs or failure in the middle of an aggressive track day. Prevent the issues before this happens with Dinan's reinforcement kit for the E39 BMW. Works with all models, strengthening the mounting point of the subframe.

This can also be used to repair existing damage if failure has already occurred.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. This setup is worth 3 point towards your Dinan badge

Dinan
Part #: D170-0002
Price: $77.00 (USD) 
Direct Ship
Quantity:   
IRP Adjustable Front Strut Brace - E46 BMW

A strut tower brace adds additional reinforcement to the front strut towers, tying them together for extra rigidity. This makes the whole structure stronger with less chassis flex. Handling and steering feel are improved with better turn-in and input with no downsides. 

The IRP adjustable strut brace bar is a high quality brace that is constructed of 100% steel for guaranteed reinforcement and prevention of flex. The brace bar is painted black to ensure corrosion protection and to add to the looks of the engine bay.

Easily installed with basic hand tools.

Fits the following BMW chassis:
E46 BMW All Submodels

IRP - Individual Racing Parts
Part #: IRPFSB-46
Price: $119.95 (USD) 
Ships on Jun 5, 2018
Free Shipping Free Shipping
Quantity:   
RKP Corner Brace (Coated Black) - F87 M2

Add structural rigidity to the front end of your M2 with RKP's corner brace kit. 

This product fits the following BMWs:
2016+ F87 M2

RKP
Part #: RKP-F87-CB-B
Price: $995.00 (USD) 
Direct Ship
Quantity:   
IRP Adjustable Front Strut Brace - E30 BMW

A strut tower brace adds additional reinforcement to the front strut towers, tying them together for extra rigidity. This makes the whole structure stronger with less chassis flex. Handling and steering feel are improved with better turn-in and input with no downsides. 

The IRP adjustable strut brace bar is a high quality brace that is constructed of 100% steel for guaranteed reinforcement and prevention of flex. The brace bar is painted black to ensure corrosion protection and to add to the looks of the engine bay.

Easily installed with basic hand tools.

Fits the following BMW chassis:
E30 BMW All Submodels

IRP - Individual Racing Parts
Part #: IRPFSB-30
Price: $119.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
E30, Z3 Rear Sway Bar Lower Link Reinforcement Kit Made in the USA This product reinforces the metal swaybar link mounting point on the rear trailing arm. The sheet metal breaks off the trailing arm due to the constant up and down loads being placed on the trailing arm from the swaybar. Problems increase when larger sway bars are used. This product eliminates the problem by thickening the sheet metal and triangulating the mounting point. A good time to install this kit would be when you are doing any rear suspension work, exhaust, or even if you are just doing a differential fluid change. This part requires welding for installation.

Click here for installation instructions.

This item fits the following BMWs:
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
Turner Motorsport
Part #: TSU3075305
Price: $24.95 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
ECS Strut Tower Plate Kit - Silver - MINI R50, R52, R53

ECS Strut Tower Plates serve the important purpose of preventing front strut tower deformation and failure.  Due to the factory tight MINI suspensions, spirited driving, aftermarket suspension components, deteriorated roads, and aging daily drivers,  MINIs are all prone to the same fate; a mushroomed front shock tower.

The ECS Front Strut Tower Plates are protection in a plate, reinforcing the tower and reducing the risk of mushrooming and deformation.

These 15mm thick plates are CAD designed using simulation to maximize stiffness, and precision CNC machined from billet 6061-T6 aluminum then black anodized for a perfect fit and exceptional corrosion resistance.  Sets include proprietary chromoly, heat treated, and nickel plated steel fastening nuts to give our plates the ultimate look and protection.

This set includes the driver and passenger side front plate with the six fastening nuts.

This item fits the following BMWs: 
2002-2008 R50 MINI MINI Cooper 
2005-2008 R52 MINI MINI Cooper Convertible, MINI Cooper S Convertible. 
2002-2008 R53 MINI MINI Cooper S 

ECS
Part #: 001717ECS02
Price: $119.95 (USD) 
In Stock
Free Shipping Free Shipping
Quantity:   
Extreme Duty ZF Transmission Brace - E36

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.

Rally Road
Part #: b027
Price: $149.95 (USD) 
Ships on Jun 4, 2018
Free Shipping Free Shipping
Quantity:   
RKP Corner Brace (Titanium) - F87 M2

Add structural rigidity to the front end of your M2 with RKP's corner brace kit. 

This product fits the following BMWs:
2016+ F87 M2

RKP
Part #: RKP-F87-CB-T
Price: $1495.00 (USD) 
Direct Ship
Quantity:   
E46 Strut Tower Reinforcement Plates - priced each Like the E36 before it, the front strut towers on the E46 are notoriously weak. Under normal driving conditions with a stock, fresh suspension it is unlikely that you will ever have a problem. But with an upgraded street or race suspension with firm springs much of the energy from pounding the road is transmitted to the thin sheet metal in the strut tower. This pounding will cause the tower to deform or even crack. Look for 'mushrooming' or deformity around the holes for the three mounting studs at the top of the strut tower. The sheetmetal around the holes should really be flat and square. Poor shocks or stiff suspensions will actually cause this sheetmetal to pop up.

These factory BMW reinforcement plates will help disperse the energy and save you from costly repairs in the future. A strut brace also helps to prevent this but these plates are designed to reinforce the strut tower from the bottom. The install over your strut mount or camber plate and simply add thickness (strength) to the strut tower. They can be sandwiched in place and do not require welding.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
2001-2006 E46 BMW M3*
* - The stock M3 upper strut mount already does a good job of dispersing the loads of the suspension. These reinforcement plates will fit a stock mount for added strength but need to be trimmed to fit inside the strut tower. The are very strongly recommended for all M3s with coil over suspensions because aftermarket coil overs typically have a smaller surface area for their strut mounts.
Genuine BMW
Part #: 51717036781
Price: $11.49 (USD) 
$12.73 (10% off MSRP)
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
  • 22 years of BMW Tuning.
  • Award winning service.
  • 10,000's of parts in stock.
  • Quality BMW Parts only.
  • Hassle-free returns.

  • Find us on Facebook