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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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MINI Coopers R55-R59 2” LIFT KIT M7 Speed
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
M7 Speed - Corporate Logo
T#:596945
Part#: 56-555100
In Stock at Vendor
$ 590.99 USD
Free Shipping
$ 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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MINI Cooper R50-R53 2” LIFT KIT M7 Speed
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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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Genuine BMW Ring, Strut Tower Brace, Left - 51618055091
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:115821
Part#: 51618055091
Ships in 2 Business Days
2% off MSRP $ 209.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 204.99 USD
Free Shipping
2% off MSRP
$ 209.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 204.99 USD
Free Shipping

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

 

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Genuine BMW Undercar Shield - Subframe Reinforcement Plate - E70 E71 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:54023
Part#: 31106786568
Ships in 2 Business Days
5% off MSRP $ 221.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 211.99 USD
Free Shipping
5% off MSRP
$ 221.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 211.99 USD
Free Shipping


Genuine BMW Reinforcement Plate -
This item fits the following BMW Chassis:
E70 X5,E71


Genuine BMW Front cross brace - right
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Genuine BMW - Corporate Logo
T#:117669
Part#: 51717180318
Ships in 2 Business Days
3% off MSRP $ 34.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 33.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 34.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 33.99 USD
Free Shipping on orders $49 and up


Genuine BMW Crossbrace, Front Right -
This item fits the following BMW Chassis:
F06,F10,F12,F13

Genuine BMW Rear Shock Mount Repair And Reinforcement - Right - E31 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:71253
Part#: 41148152997
Ships in 2 Business Days
$ 28.99 USD
Free Shipping on orders $49 and up
Genuine BMW SUPPORT FOR SHOCK ABSORBER L

Genuine BMW Rear Chassis Brace
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:60382
Part#: 33326777637
Ships in 2 Business Days
2% off MSRP $ 126.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 123.99 USD
2% off MSRP
$ 126.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 123.99 USD


Genuine BMW Tension Strut -
This item fits the following BMW Chassis:
E92

Genuine BMW Rear subframe brace - E46 M3
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Genuine BMW - Corporate Logo
T#:12733
Part#: 33312229899
Ships in 5 Business Days
2% off MSRP $ 434.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 425.99 USD
2% off MSRP
$ 434.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 425.99 USD
Connects the frame rails to the rear subframe - does not include hardware

Genuine BMW Rear Chassis Brace Upgrade - E90 BMW
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:376014
Part#: 33326777637KT
Ships in 2 Business Days
$ 363.99

This product was last offered at the strikethrough price on
07-10-2026

$ 347.99 USD
$ 347.99 USD

Improve the handling of the E90 with a rear chassis brace from the E92. A chassis brace, also known as an A-brace, adds rigidity to the chassis to improve handling.

This kit includes:

Rear chassis brace
Rear push rods - left and right
hardware

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Genuine BMW Reinforcement Plate - Left - E36 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:69355
Part#: 41112256497
Ships in 2 Business Days
2% off MSRP $ 84.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 82.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 84.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 82.99 USD
Free Shipping on orders $49 and up
Genuine BMW SPACER RING FOR REAR AXLE RE
E36 Rear Subframe/Chassis Reinforcement Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:3971
Part#: 4111225649
Ships in 5 Business Days
$ 298.52

This product was last offered at the strikethrough price on
07-07-2026

$ 290.02 USD
Free Shipping
$ 290.02 USD
Free Shipping
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.
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Genuine BMW Subframe Reinforcement Kit - With Hardware
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:577329
Part#: 41002256495KT2
Ships in 5 Business Days
$ 350.99

This product was last offered at the strikethrough price on
03-04-2026

$ 341.99 USD
Free Shipping
$ 341.99 USD
Free Shipping

Reinforce the weak points of your E36 BMW's chassis with this Genuine BMW reinforcement kit. These plates and hardware reinforce where the subframe meets the chassis to increase the unibody's rigidity, helping to prevent potential damage.

Two studs, two bolts, and two nuts that secure the subframe are all included.

Welding is required, professional installation is recommended.

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