Rear Axle Carrier Panel (RACP) failure is a well-documented issue that plagues all BMW E46 models. Due to thin sheet metal mounting, the forces applied during cornering, acceleration, and braking create stress fractures in the carrier panel, resulting in large cracks or breaks that risk the structural integrity of your chassis. To fix this issue, many enthusiasts opt to install weld-in reinforcement plates on the underside of the RACP. While this remedies the formation of additional stress cracks and adds rigidity to failure-prone areas, it does not prevent the entire carrier panel from flexing during high-performance driving.

Our all-new Rear Subframe Reinforcement Brace is engineered to add structure to the E46's rear chassis under high-stress conditions, eliminating the common weak points in the RACP while providing the confidence you need for performance driving. Don't let chassis flex limit your car’s potential—upgrade your E46 with the Turner Motorsport Rear Subframe Reinforcement Brace today!

How It Works:

During performance driving, the Rear Axle Carrier Panel (RACP) must react the forces of longitudinal and lateral accelerations. During forward acceleration, the differential transmits torque through the subframe to the RACP, forcing the rearmost subframe mounting points downward. This downward movement flexes the carrier panel, reducing its ability to handle torque efficiently. By linking the rearmost subframe mounting points to the rear shock towers, downward flex is restricted, resulting in improved torque transfer and stability. Alternatively, high-grip cornering generates lateral acceleration (side-to-side) forces across the RACP. Similar to how a rear strut brace functions, connecting the rear shock towers helps to counteract these forces. Adding the subframe to this connection further reduces lateral loads, eliminating side-to-side flex and enhancing overall stability.

Features & Design:

Four-Point Triangulated Structure: Links the rearmost subframe mounting locations to both rear strut towers for superior load distribution. Enhanced Stability: Reduces lateral and longitudinal RACP flex during acceleration, braking, and cornering. Improved Torque Transfer: Minimizes downward flex of the RACP, ensuring efficient power delivery for enhanced driveability. High-Performance Durability: Heavy-duty steel tube construction ensures lasting support during spirited driving, track use, and for vehicles with increased power output. Blue Powdercoat Finish: Offers fantastic corrosion resistance, protection from scuffs and scratches, and a stylish appearance that is sure to complement your performance-centric E46. Underside Reinforcement Compatibility: Designed to work seamlessly alongside our underside RACP reinforcement plates (TDR4675412, T#91). Kit Includes:

Rear Subframe Brace Extended-Length Drill Bit (1/4", 12" Overall Length) High-Speed Drill Bit (12.5mm, 152mm Overall Length) Drill Bit Guide Extended Subframe Bolts Zinc-Plated Steel Hex Nut (2) Installation & Support:

Need installation tips? Our team has assembled a guided start-to-finish installation tutorial, including detailed instructions on drilling and cutting your trunk floor panel for perfect fitment. Click HERE for Installation Instructions.

Rear Axle Carrier Panel (RACP) failure is a well-documented issue that plagues all BMW E46 models. Due to thin sheet metal mounting, the forces applied during cornering, acceleration, and braking create stress fractures in the carrier panel, resulting in large cracks or breaks that risk the structural integrity of your chassis. To fix this issue, many enthusiasts opt to install weld-in reinforcement plates on the underside of the RACP. While this remedies the formation of additional stress cracks and adds rigidity to failure-prone areas, it does not prevent the entire carrier panel from flexing during high-performance driving.

Our all-new Rear Subframe Reinforcement Brace is engineered to add structure to the E46's rear chassis under high-stress conditions, eliminating the common weak points in the RACP while providing the confidence you need for performance driving. Don't let chassis flex limit your car’s potential—upgrade your E46 with the Turner Motorsport Rear Subframe Reinforcement Brace today!

How It Works:

During performance driving, the Rear Axle Carrier Panel (RACP) must react the forces of longitudinal and lateral accelerations. During forward acceleration, the differential transmits torque through the subframe to the RACP, forcing the rearmost subframe mounting points downward. This downward movement flexes the carrier panel, reducing its ability to handle torque efficiently. By linking the rearmost subframe mounting points to the rear shock towers, downward flex is restricted, resulting in improved torque transfer and stability. Alternatively, high-grip cornering generates lateral acceleration (side-to-side) forces across the RACP. Similar to how a rear strut brace functions, connecting the rear shock towers helps to counteract these forces. Adding the subframe to this connection further reduces lateral loads, eliminating side-to-side flex and enhancing overall stability.

Features & Design:

Four-Point Triangulated Structure: Links the rearmost subframe mounting locations to both rear strut towers for superior load distribution. Enhanced Stability: Reduces lateral and longitudinal RACP flex during acceleration, braking, and cornering. Improved Torque Transfer: Minimizes downward flex of the RACP, ensuring efficient power delivery for enhanced driveability. High-Performance Durability: Heavy-duty steel tube construction ensures lasting support during spirited driving, track use, and for vehicles with increased power output. Blue Powdercoat Finish: Offers fantastic corrosion resistance, protection from scuffs and scratches, and a stylish appearance that is sure to complement your performance-centric E46. Underside Reinforcement Compatibility: Designed to work seamlessly alongside our underside RACP reinforcement plates (TDR4675412, T#91). Kit Includes:

Rear Subframe Brace Sedan Subframe Brace Spacers Extended-Length Drill Bit (1/4", 12" Overall Length) High-Speed Drill Bit (12.5mm, 152mm Overall Length) Drill Bit Guide Extended Subframe Bolts Zinc-Plated Steel Hex Nut (2) Installation & Support:

Need installation tips? Our team has assembled a guided start-to-finish installation tutorial, including detailed instructions on drilling and cutting your trunk floor panel for perfect fitment. Click HERE for Installation Instructions

A strut tower brace adds additional reinforcement to the front strut towers, tying them together for extra rigidity. This makes the whole structure stronger with less chassis flex. Handling and steering feel are improved with better turn-in and input with no downsides. The Dinan strut tower brace is a very high quality aluminum brace with precision machined ends that match the contours of the strut tower. Other braces simply sit on top which reduces their effectiveness. This is definitely one of the stronger strut brace designs on the market. The center bar is polished aluminum with carbon fiber inlays - an unmistakable sign of precise engineering when you open the hood.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. This part is worth 2 points towards your Dinan badge.

Fitment Note: fits 1992-1995 E36 325i with and without ASC traction control

This item fits the following BMWs:
1992-1999 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1997-2000 Z3 BMW Z3 2.3 Z3 2.8 M Coupe M Roadster

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

A strut tower brace adds additional reinforcement to the front strut towers, tying them together for extra rigidity. This makes the whole structure stronger with less chassis flex. Handling and steering feel are improved with better turn-in and input with no downsides. The Dinan strut tower brace is a very high quality aluminum brace with precision machined ends that match the contours of the strut tower. Other braces simply sit on top which reduces their effectiveness. This is definitely one of the stronger strut brace designs on the market. The center bar is polished aluminum with carbon fiber inlays - an unmistakable sign of precise engineering when you open the hood.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. This part is worth 2 points towards your Dinan badge.

This item fits the following BMWs:
1997-2003 E39 BMW 525i 528i 530i 540i M5

This carbon fiber strut brace uses a flat-oval design with a hinge-less mounting system that makes this one of the best strut braces on the market (especially at the price!). Cornering forces can put stress on the chassis, especially when used with stickier tires and stiffer suspensions.Strut braces help to reduce chassis flex by tying the two strut towers together. This design is stronger than most strut braces that use a hinge on the end that allows additonal flex. This design has fixed end mounts that the strut bar is bolted to. The slim oval tube is 100% carbon fiber for excellent strength and rigidty. The entire assembly is less than 5lbs and installs in minutes.

Fitment note: the end plates on this brace are closed. Some aftermarket front struts have an extra tall strut pin that will interfere with this brace.

This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi

These carbon fiber strut brace bars replace the stock E63 aluminum bars. The carbon fiber tube of the Dinan bar is stiffer than the mass-produced stamped aluminum factory bar. This will reduce chassis flex in the front end and improve steering response. The carbon fiber is beautifully finished in a durable clearcoat with anodized aluminum ends. These bars frame the engine compartment in carbon fiber and go great with other carbon fiber trim.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. This part is worth 2 points towards your Dinan badge.

This item fits the following BMWs:
2004-2010 E63 E64 BMW 645ci 650i M6

M7 Tuning J-Brace for R56 MINI Coopers

Elevate your Mini's performance with the M7 Tuning J-Brace, specially designed for R56 MINI Coopers equipped with the factory John Cooper Works intake. This brace enhances front-end stiffness, protects strut towers from mushrooming, and adds a stylish touch to your vehicle.

• Improves handling and stability
• Protects strut towers from damage
• Enhances the aesthetic appeal of your Mini
• Easy installation process
• Made from high-strength 6061-T6 aluminum alloy for durability

Note: The J-Brace has been slightly modified for the 2011-2013 model year MINI Cooper S for better clearance to stock parts. This brace does not fit the base model Cooper (non 'S' model) or the JCW GP2 model.

Experience heightened MINI Cooper performance with the M7 Tuning Stage III Bundle, combining three cutting-edge suspension components to optimize your vehicle's capabilities. This package includes the M7 Strut Tower Brace Kit, the exclusive Under Strut System (USS), and the M7 Rear Chassis Brace, meticulously designed for MINI Cooper models.

Benefits:

• Significant cost savings, saving $249 compared to individual purchases
• Enhanced chassis stiffness for improved handling and grip
• Reduced body roll during aggressive driving and emergency maneuvers
• Easy installation with proven performance
• Increased steering response and grip, minimizing understeer

MINI R60 R61 M7 Rally Sport Suspension Kit - Stage 1

The ultimate upgrade for MINI enthusiasts seeking top-tier performance. Enhance your driving experience with improved handling and control, designed specifically for rally sport enthusiasts.

• Enhanced handling and control
• Specifically designed for rally sport enthusiasts
• Top-tier performance upgrade
• Tailored for MINI R60 R61 M7 models