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BMW Chassis Reinforcement Kits & Parts

As 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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Suspension Reinforcement Kit E36

T#:15777304

Part#: 002478ECS01-KT

In Stock

$ 122.99 USD

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$ 122.99 USD

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If you already upgraded your suspension but are looking for the finishing touch, this kit is what you need. The BMW front strut mount reinforcement plates reduce the risk of the shock tower mushrooming and cracking. The ECS rear shock mount reinforcement plates reduce the risk of the rear shock mount area tearing and deforming. The ECS Delrin rear trailing arm bushing limiters reduce the movement that the RTAB's can make resulting in a tighter rear suspension and with less moment prolongs the bushing life.

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Suspension Reinforcement Kit

T#:5416754

Part#: 51717036781TMSKT

In Stock

Sale - Save 16% $ 265.00

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

$ 221.81 USD

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Qty

Sale - Save 16%

$ 265.00

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

$ 221.81 USD

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Includes RTAB limiter, rear shock tower reinforcement plates and BMW Strut tower plates. If you already upgraded your suspension but are looking for the finishing touch, this kit is what you need. The BMW front strut mount reinforcement plates reduce the risk of the shock tower mushrooming and cracking. The rear shock mount reinforcement plates reduce the risk of the rear shock mount area tearing and deforming. The Delrin rear trailing arm bushing limiters reduce the movement that the RTAB's can make resulting in a tighter rear suspension and with less moment prolongs the bushing life.

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Rogue Engineering V-Brace Chassis Support - E46 M3

T#:12643107

Part#: RE.899

Ships in 9 Business Days

$ 595.00 USD

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$ 595.00 USD

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An integral part on E46 M3 is the rear chassis "V-Brace" (BMW # 33312229899) found on all 2001-06 Convertibles and Coupe (including the CSL). This brace attaches to the outward points of the rear chassis and to the area near the rear subframe carrier. Since some of these vehicles are now over 20 years old, we have been seeing more and more of these start to rust away. We began studying the OEM part, curious as to why they were starting to rust away. We found that the two arms of the "V" are made from 38mm x 12mm (1.5" x 0.5") hollow square steel tubing, pressed ends and welded to a junction plate joining them with welds holding the arms at a specific angle. Since the arms are hollow, it helps keep the overall weight down, but does little to prevent corrosion since it is difficult to paint/coat a hollow tube. A Google search turned up very little other than used ones on eBay and new ones that turned out to be in short supply from the BMW dealer (not surprising since the car is over 20 years old). Determined to make something better, we began our engineering and R&D process. Goals of our Design; Modular design, since packaging and shipping something this large would probably be too expensive Costs would dictate material and manufacturing methods Lighter weight would be a secondary (or tertiary) goal, but also keeping in mind costs Corrosion resistant, so it would not rust from the inside out, like the OEM version After weighing the material, manufacturing and cost options, we decided to go with a fully CNC'd ACQ 6061-T6 aluminum assembly. The concept is to machine two identical arms (one part number) and have them joined with a "junction plate". The arms would be secured to the plate with Grade 8.8 grade hardware and the entire assembly would include replacement Grade 10.9 hardware to replace the original OEM hardware (which is probably original). Details of our Design; CNC'd 6061-T6 construction, secured with Grade 8.8 socket head cap screws. Included are replacement Grade 10.9 hardware to fit in the factory locations. About 4 lbs. fully assembled weight (vs. 6.25 lbs for OEM), about a 35% weight savings Anodized gray finish Modular design allows for one arm to be removed in case of exhaust removal requirement. Included in the Kit Two (2) arms of the brace assembly (they are idential) One (1) junction plate One (1) red spacer (this goes BETWEEN the brace and the chassis!) Two (2) blue spacers (these goes BETWEEN the brace and the chassis!) Four (4), M10 socket head cap screws Three (3), M10 flanged hex head bolts It is recommended that the holes used to mount the V-brace onto the car be cleaned before installation by running an M10x1.5 tap to clean each of the holes.

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E36, E46, Z3 Rear Shock Mount Reinforcement (Sold Each)

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

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Sale - Save 3%

$ 8.99

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

$ 8.68 USD

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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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Suspension Reinforcement Kit

T#:15677561

Part#: 51717036781-KT

In Stock

Sale - Save 16% $ 265.00

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

$ 221.81 USD

Add to Wish List

Qty

Sale - Save 16%

$ 265.00

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

$ 221.81 USD

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Rogue Engineering F97 X3M / F98 X4M Billet Aluminum Engine Support Br...

T#:26438195

Part#: RE.345

Ships in 3 Business Days

$ 329.00 USD

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$ 329.00 USD

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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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Vargas Billet Ride Height Bracket - Toyota GR Supra (A90/A91) ...

T#:51672702

Part#: VTT-A9X-RIDE-BRA

Ships in 10 Business Days

$ 79.99 USD

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$ 79.99 USD

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The Vargas Billet Ride Height Bracket is the "peace of mind" upgrade every MKV Supra owner needs.

Turner Front Suspension Refresh Kit - Level 3 - E36 M3 S52 3.2L (with...

T#:21703006

Part#: T31122228461NCKT

In Stock

Sale - Save 7% $ 516.99

This product was last offered at the strikethrough price on
03-02-2026

$ 480.90 USD

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Qty

Sale - Save 7%

$ 516.99

This product was last offered at the strikethrough price on
03-02-2026

$ 480.90 USD

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G8X M3 M4 Experience Package

Call In Or Chat For Best Price!

T#:30198000

Part#: G8X-M3M4-E-GBGA

Back Ordered

Sale - Save 10% $ 5,849.99

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

$ 5,264.96 USD

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Qty

Sale - Save 10%

$ 5,849.99

This product was last offered at the strikethrough price on
07-31-2026

$ 5,264.96 USD

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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!

T#:30231246

Part#: G87-M2-E-GBGA

Ships on Sep 9, 2026

Sale - Save 10% $ 5,849.99

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

$ 5,264.96 USD

Add to Wish List

Qty

Sale - Save 10%

$ 5,849.99

This product was last offered at the strikethrough price on
07-31-2026

$ 5,264.96 USD

Add to Wish List

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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BMW Chassis Reinforcement Kits & Parts

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Suspension Reinforcement Kit E36

Suspension Reinforcement Kit

Rogue Engineering V-Brace Chassis Support - E46 M3

E36, E46, Z3 Rear Shock Mount Reinforcement (Sold Each)

Suspension Reinforcement Kit

Rogue Engineering F97 X3M / F98 X4M Billet Aluminum Engine Support Br...

Vargas Billet Ride Height Bracket - Toyota GR Supra (A90/A91) ...

Turner Front Suspension Refresh Kit - Level 3 - E36 M3 S52 3.2L (with...

G8X M3 M4 Experience Package

G87 M2 Experience Package

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