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    BMW E30 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.
    You're currently viewing parts for your (E30) 3-series 1984-1991. Reset your chassis
    For accurate results, specify your year and model below.
    Made in the USAThere 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:

  • front subframe
  • rear sway bar / swaybar tabs (from trunk floor)
  • rear lower sway bar tab (on trailing arm)
  • optional front sway bar tab (M3 only)

  • This item fits the following BMWs:
    1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is M3
    Part #: T30REINF
    Price: $184.85 (USD) 
    Made in the USAAs 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
    Part #: TDR3075001
    Price: $29.95 (USD) 
    Made in the USAEvery 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
    Part #: TSU3075312
    Price: $14.95 (USD) 
    Made in the USA 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
    Part #: TSU3075308
    Price: $124.95 (USD) 
    Made in the USAThis 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
    Part #: TSU3075305
    Price: $24.95 (USD)