BMW Chassis Reinforcement Kits & Parts for BMW E30 M3 S14 2.3L

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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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BMW E30 Frame Rail Reinforcement Kit
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Turner Motorsport - Corporate Logo
T#:5901285
Part#: 043107LA01
In Stock
Sale - Save 40% $ 186.99
$ 112.19 USD
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Sale - Save 40% $ 186.99
$ 112.19 USD
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BMW E30 Frame Rail Reinforcement Kit from Turner Motorsport addresses a critical weak point in the chassis to enhance the structural integrity of your BMW. Leveraging two decades of racing expertise, Turner Motorsport delivers performance parts that combine exceptional quality, value, and functionality. This reinforcement kit is designed to strengthen the frame rails of the E30, improving handling and durability for a more responsive driving experience.

  • Enhanced Structural Integrity: Reinforces the frame rails to address common weak points in the E30 chassis.
  • Improved Handling: Stiffens the underside of the vehicle for better road handling and stability.
  • Durable Construction: Built to withstand the demands of both street and track use.
  • Expert Design: Developed with insights from Turner Motorsport’s extensive racing experience.

This kit is essential for maintaining your BMW E30's performance and reliability over time.

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E30 Rear Sway Bar Reinforcement Kit
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Turner Motorsport - Corporate Logo
T#:4054
Part#: TSU3075308
In Stock
Sale - Save 15% $ 177.99
$ 151.99 USD
Limited Qty Sale
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Sale - Save 15% $ 177.99
$ 151.99 USD
Limited Qty Sale
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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

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E30 Complete Turner Motorsport Reinforcement Package
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Turner Motorsport - Corporate Logo
T#:338985
Part#: T30REINF
Ships Sep 24, 2025
Sale - Save 4% $ 273.99
Starting at $ 264.09 USD
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Sale - Save 4% $ 273.99
Starting at $ 264.09 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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