BMW Chassis Reinforcement Kits & Parts for BMW 3 Series G20 (2019+)

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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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Three Point Carbon Fiber Strut Brace - G20/G42
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Turner Motorsport - Corporate Logo
T#:21078441
Part#: 011902LAKT
Ships on Aug 11, 2025
Sale - Save 3% $ 1,549.99
$ 1,503.49 USD
Free Shipping on orders $49 and up
Sale - Save 3% $ 1,549.99
$ 1,503.49 USD
Free Shipping on orders $49 and up

Reduces chassis flex for improved handling and control. Beautiful carbon weave for both a functional and aesthetic enhancing upgrade for your G20 or G42!

The G20 and G42 come in a variety of different models offering a variety of performance options. Whether you have a B48 or B58 they both provide an exhilarating driving experience but are missing a key component found on the M3 and M4, chassis bracing. Taking performance cues from the more performance based "M" chassis we are able to bring an immense value add to your new 2 or 3 series to get the most out of your driving experience with our new 3-point strut brace. This is the only strut brace on the market that takes the handling characteristics from the M3 and puts them to use on your vehicle.

An instant upgrade with no modification needed. Fits directly on your vehicle utilizing factory hardware and supplied stud kit. Designed for both street and track use this 2 piece strut brace is mounted together to create one uniform brace for the best improvement in handling.

Strut tower braces are an excellent and common handling upgrade that work by bracing the shock towers together to reduce chassis flex during cornering. Our engineers designed and tested our one of a kind carbon fiber strut brace in-house to increase chassis rigidity and improve handling during aggressive driving in your 2 or 3 series G chassis BMW. Turner Motorsport has engineered a lightweight* and extremely rigid strut brace kit comprised of carbon fiber with billet aluminum end brackets that will not only enhance your driving experience but also provide an eye-catching addition to your engine bay. This addition gets your chassis once step closer to competing with the BMW M cars that come equipped with factory strut braces!

Our Turner Carbon Fiber Strut Tower Brace for your G20/G42 is incredible! Not just a show piece, This front strut brace is a precision engineered structural component that ensures power is transferred properly and not lost through chassis flex, without any increase in NVH. Adding the strut tower brace allows cornering load to be distributed more competently between both strut towers to reduce chassis flex, preventing changes in wheel alignment geometry that can negatively impact handling.

Carbon fiber is an excellent addition on any vehicle, and offers a very unique look that is found on some of the most exotic vehicles on the road today. This strut brace kit features a clean woven design that is sure to look phenomenal for years to come, and will absolutely compliment your engine bay. This kit includes everything you need for installation.

Design:

CAD designed for perfect integration with the stock mounting locations and features in the engine bay.
Utilizes the factory mounting hardware and supplied mounting studs
Designed with an oval cross-sectional area for increased rigidity
Manufactured using structural carbon fiber with a 2x2 twill weave outer layer for increased rigidity and a great look in the engine bay.
The aluminum chassis mounts are machined from 6061-T6, type II black anodized and bonded to the carbon structure to ensure secure and strong mounting of the strut brace to the chassis.
Performance and Benefits:

Increases structural rigidity of the chassis
Direct fitment
Functional and aesthetic upgrade
Hand-laid Gloss Carbon Fiber
Billet aluminum mounting

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Carbon Lid - Gloss (For Strut Brace)
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:638835
Part#: 029201TMS05
In Stock
Sale - Save 52% $ 136.99
$ 65.56 USD
Free Shipping on orders $49 and up
Sale - Save 52% $ 136.99
$ 65.56 USD
Free Shipping on orders $49 and up
For use with the Turner B58 Carbon Intake and 3-Point Strut Brace. If you have already purchased our Carbon Fiber B58 Intake for your G20 or G42 and want to upgrade your ride further with the rigid 3-point Strut Brace then you will need to swap out your intake lid for a new one specifically designed with precise fitment to compliment our upgraded carbon strut brace.
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Burger Motorsports - Corporate Logo
T#:637421
Part#: BMSG20BSCB-RED
Ships on Jul 15, 2025
$ 279.00 USD
Free Shipping on orders $49 and up
New BMS Billet Strut Cross Braces for the 2019+ G20 BMW M340 & 330. Designed and made in the USA 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#:637424
Part#: BMSG20BSCB-BLK
Ships in 7 Business Days
$ 279.00 USD
Free Shipping
$ 279.00 USD
Free Shipping
New BMS Billet Strut Cross Braces for the 2019+ G20 BMW M340 & 330. Designed and made in the USA 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#:637422
Part#: BMSG20BSCB-BLUE
Ships on Jul 15, 2025
$ 279.00 USD
Free Shipping on orders $49 and up
New BMS Billet Strut Cross Braces for the 2019+ G20 BMW M340 & 330. Designed and made in the USA 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 Jul 15, 2025
$ 279.00 USD
Free Shipping
$ 279.00 USD
Free Shipping
New BMS Billet Strut Cross Braces for the 2019+ G20 BMW M340 & 330. Designed and made in the USA 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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Carbon Fiber Performance Kit - G20/G42
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:37251114
Part#: 011902LAISBKT
Ships on Aug 11, 2025
New Item
$ 2,805.99 USD
Free Shipping
$ 2,805.99 USD
Free Shipping

Carbon Performance Intake and 3-Point Strut Brace Kit

We know the G20 and G42 BMW models deliver an incredible driving experience, whether equipped with the B48 or B58 engine. However, we’ve identified key areas where performance and style can be taken to the next level. That’s why we’ve developed the Turner Carbon Fiber Performance Kit, combining our Turner Carbon Fiber Intake System and Turner Carbon Fiber Strut Tower Brace into one ultimate package.

Turner Carbon Fiber Intake System

Upgrade your engine bay with our Turner Carbon Fiber Intake System, designed for maximum performance and style.

Unmatched Airflow: Our intake flows 8% more air than the factory system (445.0 CFM vs. 410.1 CFM), reducing stress on your turbo and delivering optimal performance.
Lower Intake Temps: The enclosed carbon fiber lid reduces intake temperatures by up to 13°F compared to open intakes, ensuring consistent performance.
Premium Materials: Built with a gloss carbon fiber intake tube featuring MAF scaling, a durable 6061-T6 anodized flange, and a wrinkle black powder-coated heat shield for strength and style.
High-Performance Filtration: Includes a conical, reusable air filter with 8-ply oiled cotton gauze and a velocity stack for superior filtration and efficiency.
This intake is the perfect blend of form and function, offering noticeable performance gains while giving your engine bay the high-end look it deserves.

Turner Carbon Fiber Strut Tower Brace

Inspired by the performance-focused "M" chassis, our Turner Carbon Fiber Strut Tower Brace is engineered to improve handling and chassis rigidity.

Enhanced Handling Dynamics: Reduces chassis flex by effectively distributing cornering loads between the strut towers, maintaining consistent wheel alignment geometry during aggressive driving.
Precision Engineering: CAD-designed for a seamless fit with factory mounting points, our strut brace is built with lightweight yet ultra-rigid carbon fiber featuring a 2x2 twill weave.
Durable Construction: Features billet aluminum mounts machined from 6061-T6 aluminum, type II anodized, and securely bonded to the carbon fiber for uncompromised strength and stability.
Striking Aesthetics: Our high-gloss carbon fiber design adds a motorsport-inspired look to your engine bay, complementing any BMW enthusiast's style.
Why Choose the Turner Performance Kit?

Performance Gains: Maximize airflow and structural rigidity to make your G20 or G42 sharper, more responsive, and more enjoyable to drive.
Premium Appearance: Transform your engine bay with matching carbon fiber components that deliver both performance and head-turning style.
Easy Installation: Both the intake and strut brace are designed for a straightforward, bolt-on installation using factory mounting points—no modifications required.
Whether you’re hitting the track or carving through back roads, the Turner Motorsport G20/G42 Carbon Fiber Performance Kit ensures your BMW delivers on all fronts: performance, handling, and aesthetics. Upgrade your 2 or 3 Series today with the Turner kit designed to bring your driving experience closer to the ultimate M-car level.

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Enthusiast Bundles - Corporate Logo
T#:37419763
Part#: 011902LAEBKT
Ships on Aug 11, 2025
New Item
Sale - Save 10% $ 2,406.94
$ 2,155.66 USD
Free Shipping on orders $49 and up
Sale - Save 10% $ 2,406.94
$ 2,155.66 USD
Free Shipping on orders $49 and up

Enhance your BMW’s performance and style with this unbeatable combo! The Turner Motorsport Carbon Fiber Strut Brace and Engine Cover are the ultimate pair to upgrade chassis stability and engine bay aesthetics—all with a single purchase.

G20/G42 Carbon Fiber Strut Brace

For G20 and G42 BMW models equipped with the B48 or B58 engines, the driving thrill is undeniable. Yet, these cars lack a crucial component found in high-performance M models: structural chassis bracing. With Turner Motorsport’s 3-point Carbon Fiber Strut Brace, you’re adding the missing link to your BMW, mirroring the handling stability of an M3 or M4. This is the only strut brace that elevates G20/G42 handling by emulating the stiffness of an M-series chassis, giving you a dynamic edge on both road and track.

The strut brace fits seamlessly into your BMW using the original factory hardware and an included stud kit, offering a hassle-free, direct installation with no modifications required. Designed and tested in-house by Turner Motorsport, this brace reduces chassis flex, enhancing control during spirited driving and providing a tighter, more responsive feel. Constructed from high-strength carbon fiber with billet aluminum end brackets, this strut brace boosts performance while adding an eye-catching focal point to your engine bay.

Strut Brace Features:

Enhanced Chassis Rigidity: Reduces flex by linking the strut towers, promoting a more precise steering response. Street and Track Ready: Engineered for the best of both worlds, offering stability in all driving conditions. Premium Carbon Fiber & Billet Aluminum: Lightweight yet highly rigid, with a stunning woven 2x2 twill finish. Easy Installation: Fits perfectly with stock mounting points using supplied hardware, ensuring a hassle-free setup. Carbon Fiber: Performance & Style

Turner’s strut brace uses structural carbon fiber, designed to endure the rigors of aggressive driving without compromising aesthetics. The brace's distinct, gloss-finished carbon fiber weave adds a sophisticated, high-performance look akin to exotic supercars. Engineered for precision, this brace effectively distributes cornering forces between the strut towers, minimizing chassis distortion and maintaining optimal wheel alignment, even in hard turns.

Turner Motorsport G-Chassis Carbon Fiber Engine Cover for B58 Engines

Give your G-Chassis BMW’s engine bay a polished, refined look with Turner’s Carbon Fiber Engine Cover. This direct replacement cover is crafted from hand-laid, gloss-finished carbon fiber, delivering a resilient, UV-protected finish. With an OE-style indentation for the BMW badge, this cover complements your engine bay with a sleek, factory look that stands out.

Engine Cover Highlights:

Direct Fitment: Seamlessly replaces the stock cover, utilizing factory mounting grommets and hardware. Durable Gloss Finish: Ensures long-lasting shine and UV protection. Distinctive Style: A premium upgrade that elevates the aesthetic of your B58 engine. Installation Notes:

Simply transfer the OE grommets and badge from the stock cover to the carbon fiber engine cover for a perfect fit—installation takes seconds!

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