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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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ECS - Corporate Logo
T#:376176
Part#: 002478ECS02KT
In Stock
Sale - Save 25% $ 95.98

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

$ 71.98 USD
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Sale - Save 25%
$ 95.98

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

$ 71.98 USD
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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.
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ECS - Corporate Logo
T#:9222692
Part#: 016965LA
In Stock
Sale - Save 25% $ 118.99

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

Starting at $ 89.24 USD
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Sale - Save 25%
$ 118.99

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

Starting at $ 89.24 USD
Free Shipping
A major upgrade over the weak stamped steel factory sway bar brackets. These are critical for those running larger, aftermarket sway bars. Includes polyurethane bushings.
Eventuri - Corporate Logo
T#:39565572
Part#: EVE-S58-CF-STR
Ships in 3 Business Days
$ 2,195.00 USD
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$ 2,195.00 USD
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Upgrade your BMW G8X M2, M3, or M4 CSL today with the Eventuri BMW G8X M2 / M3 / M4 CSL Carbon Strut Brace - Gloss Finish, and experience enhanced performance, improved handling, and a race-inspired aesthetic under the hood.
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ECS - Corporate Logo
T#:593980
Part#: 001717ECS01
In Stock
$ 193.99 USD
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$ 193.99 USD
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M7 Speed - Corporate Logo
T#:599900
Part#: 53-5M7101
In Stock
$ 140.99 USD
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$ 140.99 USD
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M7 Strut Reinforcement Plates 53-510101 are the ultimate solution for MINI owners facing the common issue of strut tower mushrooming caused by heavy impacts from shocks and low aspect ratio tires. Over time, MINI's shock towers can develop a convex shape, disrupting suspension alignment and leading to a noticeable pull to one side. The M7 Strut Reinforcement Plates (SRPs) address this problem by reinforcing the sheet metal and shock top plate, creating a durable surface that resists bending, even during hard impacts.

Designed specifically for the R50 Base Model Cooper, the R52 Convertible, and the R53 Cooper S, these SRPs are an essential upgrade for any MINI enthusiast. Constructed from CNC machined billet aluminum and black anodized for durability, the 1/2" (13mm) thick plates cover the entire surface of the strut tower, distributing loads evenly and providing peace of mind.

Whether you drive your MINI daily or push it to the limits on the track, M7 Strut Reinforcement Plates offer a cost-effective preventative measure against expensive suspension repairs. Easy to install in less than 20 minutes, the SRPs use the stock nuts for mounting and come with instructions that also guide you through fixing existing mushrooming.

  • Prevents strut tower mushrooming
  • Constructed from CNC machined billet aluminum
  • Black anodized for long-lasting durability
  • Covers the entire strut tower surface
  • Designed for R50, R52, and R53 MINI models
  • Easy installation with stock nuts
  • Made in the USA
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Burger Motorsports - Corporate Logo
T#:637424
Part#: BMSG20BSCB-BLK
Ships in 7 Business Days
$ 199.00 USD
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$ 199.00 USD
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Constructed from lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a solid one-piece design. These give an exclusive look under the hood and extra stabilization to the chassis.
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Burger Motorsports - Corporate Logo
T#:637423
Part#: BMSG20BSCB-SIL
Ships on Aug 31, 2026
$ 255.99 USD
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$ 255.99 USD
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Constructed from lightweight billet aluminum with the BMS logo engraved on the top middle. These strut braces are a solid one-piece design. These give an exclusive look under the hood and extra stabilization to the chassis.
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M7 Speed - Corporate Logo
T#:596945
Part#: 56-555100
In Stock at Vendor
$ 590.99 USD
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$ 590.99 USD
Free Shipping

M7 Speed Suspension Product for Generation 2 MINI Cooper Models (R55-R59)

M7 Speed proudly introduces a unique suspension product for the popular Generation 2 MINI Cooper models R55 through R59. These affordable vehicles are becoming the choice for many entry-level modifiers in the German performance car segment, and they are great for Rally Cross.

Engineered to transform the mild-mannered MINI into a more capable and versatile daily driver, this product is perfect for today’s lifestyle. Whether it's for spirited adventure motoring, weekend overlanding, living off the grid, or tackling pothole-riddled urban streets, the M7 Speed 2" Lift Kit makes it possible. By installing this lift kit, the MINI is elevated by 2 inches, plus an additional lift from larger diameter tires (up to an extra 1.5 inches). No additional modifications are required—simply bolt it in, perform a realignment, and enjoy! Add aftermarket wheels and larger tires to create a unique, durable, and practical vehicle that everyone will love.

The M7 Speed Stage 1 Kit includes everything needed for the transformation. This kit features precision-fabricated lift blocks and a set of MAXX-G heavy-duty adjustable front sway bar links. These shorter links are necessary to prevent suspension bind that can occur with stock-length sway bar links.

Stage 1 Kit Includes:

  • 2" Lift Kit with high-strength assembly hardware (2 front riser blocks, 2 rear riser blocks)
  • Set of MAXX-G Heavy Duty Adjustable Front Sway Bar Links
  • Hardware kit with high-strength, proper-length bolts and new locking nuts

Features:

  • Engineered using 3D CAD software and finite element simulation for proper fitment and safe, fail-proof performance
  • CNC laser-cut parts
  • Lightweight fabricated steel design
  • Black urethane powder coating for corrosion protection and a quality appearance
  • Designed for easy bolt-on installation, complete with all new high-strength hardware and installation instructions

MAXX-G Adjustable Sway Bar:

  • Enhances cornering performance, provides bind-free suspension travel, improves suspension alignment, and overall chassis balance
  • Features sealed and permanently lubricated forged steel ball stud & socket ends for easy installation
  • Includes a military-grade aluminum adjuster sleeve with opposing RH & LH threads for simple length adjustments
  • Replaceable link ends make maintenance easy

M7 Speed is the world leader in MINI adventure motoring, overlanding, and ultimate performance products. Renowned for exceptional customer service and product innovation, M7 Speed is dedicated to engineering and producing high-quality, easy-to-install aftermarket performance products. Located in Mooresville, North Carolina, also known as Race City USA, M7 Speed is at the epicenter of North American motorsports.

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M7 Speed - Corporate Logo
T#:597716
Part#: 53-555100
In Stock at Vendor
$ 610.99 USD
Free Shipping
$ 610.99 USD
Free Shipping

M7 Speed Suspension Product for Generation 1 MINI Cooper (R50-R53)

M7 Speed introduces a unique suspension product for the popular Generation 1 MINI Cooper models R50 through R53. These affordable vehicles are becoming the choice for many entry-level modifiers in the German performance car segment, and this product is great for Rally Cross.

Engineered to convert the mild-mannered MINI into a more capable and versatile daily driver, this kit is perfect for spirited adventure motoring, weekend overlanding, living off the grid, or navigating pothole-riddled urban streets. The M7 Speed 2" Lift Kit lifts the MINI 2" higher, plus an additional lift from larger diameter tires (up to an extra 1.5"). No additional modifications are required—just bolt it in, realign, and enjoy! Enhance your MINI with aftermarket wheels and larger tires for a more durable, practical, and enjoyable vehicle.

Stage 1 Kit Includes:

  • 2" Lift Kit with high-strength assembly hardware (2 front riser blocks, 2 rear riser blocks)
  • MAXX-G Heavy Duty Adjustable Front Sway Bar Links
  • Hardware kit with high-strength proper length bolts and new locking nuts

Features:

  • Engineered using 3D CAD software and finite element simulation for proper fitment and safe performance
  • CNC laser-cut parts
  • Lightweight fabricated steel design
  • Black urethane powder coated for corrosion protection and a quality appearance
  • Easy bolt-on installation with all new high-strength hardware and installation instructions

MAXX-G Adjustable Sway Bar:

  • Enhances cornering performance, bind-free suspension travel, better suspension alignment, and overall chassis balance
  • Sealed and permanently lubricated forged steel ball stud & socket ends for easy installation
  • Military grade aluminum adjuster sleeve with opposing RH & LH threads for simple length adjustments
  • Replicable link ends for easy maintenance

M7 Speed is the world leader in MINI adventure motoring, overlanding, and ultimate performance products. Known for exceptional customer service and product innovation, the company is dedicated to engineering and producing high-quality, easy-to-install aftermarket performance products. M7 Speed is located in Mooresville, North Carolina, also known as Race City USA.

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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
Free Shipping
Sale - Save 3%
$ 152.99

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

$ 148.40 USD
Free Shipping
Rogue Engineering - Corporate Logo
T#:26438195
Part#: RE.345
Ships in 3 Business Days
$ 329.00 USD
Free Shipping
$ 329.00 USD
Free Shipping
The Rogue Engineering billet aluminum engine support braces are CNC'd from lightweight ACQ aluminum, specifically designed in Solidworks 3D. The sides of each brace are milled to reduce weight while look aesthetically pleasing. While each OEM steel brace weighs 688g, each of the Rogue Engineering support braces weigh only 380g. The total savings of 1.35 lbs! Sold as a pair, available in anodized black with RE logo laser engraved into the front part of the brace.
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Karbonius Composites - Corporate Logo
T#:26471475
Part#: G8XSB02-CF-AB
Ships in 3 Business Days
$ 3,115.00 USD
Free Shipping
$ 3,115.00 USD
Free Shipping
M4 CSL brace has been designed to enhance the sportive character of M cars, at the same time as it brings the best rigidity to the chassis. Designed and manufactured in Spain under strict quality requirements according to UNE-EN ISO 9001:2015. This piece is made by hand with the best carbon fiber prepreg. This piece is manufactured by combining craft and technology. On the one hand, with the care and attention to detail that characterizes our company, and on the other, with the use of the most modern equipment in some critical points of the process, such as 3D scanning, autoclave curing, and robotic cutting. The G8X CSL strut brace has been manufactured with monobloc tubular technology, avoiding unnecessary joints that could result in weak points. Lamination has been carefully designed, and we include 3 different fabrics, all best quality, including high-modulus unidirectional carbon. 6061 aluminum machined components complete the piece providing great resistance to wear in the area of joint to the chassis. Not just to save weight, but to achieve the strength and rigidity necessary for a functional part with similar characteristics to the OEM part. The result? A piece with an OEM finish and fitment, but with an awesome appearance and only 1.8 kilos, which is a significant weight reduction compared to the original bar which is 3.5 kilos.
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