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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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Condor Speed Shop - Corporate Logo
T#:597378
Part#: E36REARCHASSISRK
Ships in 5 Business Days
$ 84.99 USD
Free Shipping
$ 84.99 USD
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Condor Speed Shop's .125" steel Rear Chassis Reinforcement Kit includes everything you need to reinforce the back half of your chassis. The subframe plates are designed to reinforce the subframe mounting points on the chassis of your e36. This is where cracks usually start to form. You can use these plates to repair a cracked chassis or to prevent cracks from forming and avoid costly repairs. The front mounting point of the rear trailing arm is a known area of failure on track-driven E36s. This is a must-have reinforcement. This 6-piece reinforcement plate kit reinforces the stock pocket bungs to prevent failure. .125 (1/8) inch thick 4 rear subframe reinforcement plates 2 rear trailing arm reinforcement plates *Requires welding, professional installation is recommended.*
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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
Free Shipping

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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Condor Speed Shop - Corporate Logo
T#:577570
Part#: REIPLTRTAB36
Ships in 3 Business Days
$ 49.00 USD
Free Shipping on orders $49 and up
Condor's Rear Trailing Arm Pocket Reinforcement Kit is one of the few kits in which the plate is not cut in the shape of a "C". A lot of companies cut them with an opening in order to have less waste when cutting. Their plates are fully connected all the way around making them stronger. This is a must-have reinforcement. The front mounting point of the rear trailing arm is a known area of failure on track driven E36s. Condor's 2-piece reinforcement plate kit reinforces the stock pocket bungs to prevent failure. Welding is required, includes rosette holes. *Does not fit 318ti.
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Eventuri - Corporate Logo
T#:39565572
Part#: EVE-S58-CF-STR
Ships in 3 Business Days
$ 2,195.00 USD
Free Shipping
$ 2,195.00 USD
Free Shipping
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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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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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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Bavarian Autosport - Corporate Logo
T#:578621
Part#: B3300044
In Stock
Sale - Save 3% $ 8.99

This product was last offered at the strikethrough price on
05-03-2026

$ 8.68 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 8.99

This product was last offered at the strikethrough price on
05-03-2026

$ 8.68 USD
Free Shipping on orders $49 and up
This is a direct replacement for 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. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty. 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
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M7 Speed - Corporate Logo
T#:31191876
Part#: 53-5M7551
Ships in 3 Business Days
$ 678.99 USD
$ 678.99 USD

MINI R50 R53 M7 Stage II Suspension Kit is perfect for the ultimate MINI performance enthusiast. M7 Tuning has bundled the final two pieces needed to transform your MINI from a go-kart into an F1 turning machine. If you already have the M7 Strut Tower Brace, this bundle is for you. Add these industry-leading bolt-on MINI Cooper suspension components and experience instant grip like never before. This Stage II Bundle includes the exclusive Under Strut System and the M7 Rear Chassis Brace for the R53 Mini Cooper.

Compared to buying these kits separately, you save money and gain a significant upgrade in performance. One of the biggest improvements you can make to gain grip is stiffening your chassis. A stiffer chassis allows the suspension, like the springs, shocks, and sway bars to work more effectively and do their job as intended, keeping the tires in better contact with the road. The M7 Under Strut System (USS) and Rear Chassis Brace feature easy-to-install integrated billet and extruded aluminum pieces that will brace, connect, and triangulate your MINI Cooper chassis for greatly improved chassis stiffness. This maximizes grip, increases steering response, and reduces understeer during aggressive turn-in or emergency maneuvers. This is a "WOW! Why didn't I do this sooner?" addition to your favorite speed monster. M7 Tuning products are engineered, tested, and proven to perform.

Under Strut System:

  • Greatly improves chassis stiffness
  • Enhances turn-in capability and reduces understeer
  • Made of extruded and CNC machined aluminum with a black anodized finish
  • Durable and designed to prevent chipping and corrosion
  • Includes stainless steel fasteners and necessary tools for installation
  • Easy to install

Rear Chassis Brace:

  • Reduces chassis flex for improved handling
  • Enhances rear-end stability and responsiveness
  • Allows for comfortable use of the rear seats
  • Provides a mounting option for a fire extinguisher or other accessories
  • Compatible with M7 Under Strut System for maximum chassis stiffening
  • No sacrifice of passenger comfort
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G8X M3 M4 Experience Package
Call In Or Chat For Best Price!
Dinan - Corporate Logo
T#:30198000
Part#: G8X-M3M4-E-GBGA
Ships in 5 Business Days
9% off MSRP $ 6,434.99

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

$ 5,849.99 USD
Free Shipping
9% off MSRP
$ 6,434.99

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

$ 5,849.99 USD
Free Shipping
Going beyond its Foundation counterpart, the Dinan Experience packages address not only the engine but also the chassis for a complete solution in the form of a wholly tuned Dinan vehicle. While adding power modifiers is often the go-to path when beginning the modification journey, it does not fully consider what makes the car infinitely more enjoyable in scenarios outside of WOT pulls. With the addition of suspension upgrades integrated alongside the power adders, the vehicle is transformed into something more than just the sum of its parts. It's a comprehensive answer to delivering additional technical capabilities in the form of increased engine performance and better handling along with improvements to aesthetics (looks and sound) in a package designed with reliability and safety in mind. This union of power and handling modifications results in a true OEM+ experience - the Dinan Experience. Includes Dinan Exhaust Dinan Intake Dinan Strut Brace Dinan Pedal Covers Dinan Badge Features Smiles per gallon instantly multiplied Guaranteed component compatibility and seamless integration 10% price savings when compared to buying the same components a la carte Maximum gains of +6 HP and +5 lb-ft of torque (Exhaust) Smoother, louder,and sportier sound (Exhaust + X-Pipe) Computer-controlled exhaust valves are retained and limit noise during low-speed driving and open fully during high-load conditions (Exhaust) Deletes resonators between the secondary catalysts and rear muffler for increased volume (X-Pipe) Between 11 and 16.6 pounds lighter than the stock depending on the package(Exhaust + X-Pipe and Strut Brace) Reduced intake restriction for Increased turbo efficiency with greater power potential on modified builds (Intake) More robust and aggressive induction soundtrack (Intake) Improved throttle response (Intake) Increased rigidity for sharper handling and reduced flex (Strut Brace) Elevated and stylish high-performance look to the interior (Pedal Pads) Every Experience Package instantly qualifies for the Fabled Dinan deck lid badge
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G87 M2 Experience Package
Call In Or Chat For Best Price!
Dinan - Corporate Logo
T#:30231246
Part#: G87-M2-E-GBGA
Ships on Aug 17, 2026
9% off MSRP $ 6,434.99

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

$ 5,849.99 USD
Free Shipping
9% off MSRP
$ 6,434.99

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

$ 5,849.99 USD
Free Shipping
Going beyond its Foundation counterpart, the Dinan Experience packages address not only the engine but also the chassis for a complete solution in the form of a wholly tuned Dinan vehicle. While adding power modifiers is often the go-to path when beginning the modification journey, it does not fully consider what makes the car infinitely more enjoyable in scenarios outside of WOT pulls. With the addition of suspension upgrades integrated alongside the power adders, the vehicle is transformed into something more than just the sum of its parts. It's a comprehensive answer to delivering additional technical capabilities in the form of increased engine performance and better handling along with improvements to aesthetics (looks and sound) in a package designed with reliability and safety in mind. This union of power and handling modifications results in a true OEM+ experience - the Dinan Experience. Includes Dinan Exhaust Dinan Intake Dinan Strut Brace Dinan Pedal Covers Dinan Badge Features Smiles per gallon instantly multiplied Guaranteed component compatibility and seamless integration 10% price savings when compared to buying the same components a la carte Maximum gains of +6 HP and +5 lb-ft of torque (Exhaust) Smoother, louder, and sportier sound (Exhaust + X-Pipe) Computer-controlled exhaust valves are retained and limit noise during low-speed driving and open fully during high-load conditions (Exhaust) Deletes resonators between the secondary catalysts and rear muffler for increased volume (X-Pipe) Between 11 and 16.6 pounds lighter than the stock depending on the package(Exhaust + X-Pipe and Strut Brace) Reduced intake restriction for Increased turbo efficiency with greater power potential on modified builds (Intake) More robust and aggressive induction soundtrack (Intake) Improved throttle response (Intake) Increased rigidity for sharper handling and reduced flex (Strut Brace) Elevated and stylish high-performance look to the interior (Pedal Pads) Every Experience Package instantly qualifies for the Fabled Dinan deck lid badge
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