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BMW Drivetrain Parts

Building your perfect BMW is more than just adding horsepower and stiff suspension. Your drivetrain needs attention in order to deliver power effectively. Most BMWs feature comfortable clutch discs, heavy flywheels, long shifter throws, and open differentials. The drivetrain transmits power to the wheels, but can also be a source of power loss when it is designed for comfort rather than performance. Everything on this page will help you improve your power delivery and driving experience by providing custom Limited Slip Differentials, Short Shift Conversions, Performance Clutch Discs, Lightweight Flywheels, and anything else your BMW needs to be the perfect driving experience.

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ECS - Corporate Logo
T#:53326234
Part#: 055266LA01KT
In Stock
New Item
$ 229.99 USD
Free Shipping
$ 229.99 USD
Free Shipping

The factory center support carrier features an internal bushing constructed from soft, pliable rubber. While this provides a smooth and quiet ride for standard driving, it falls short in performance-oriented applications where durability and precision are critical. During acceleration, shifting, and under load, the rubber bushing's inherent flexibility allows for excessive driveshaft movement. Over time, repeated stress and wear on the rubber will cause bushing failure, risking poor driveshaft alignment and efficiency. In extreme cases, this failure will cause a constant rotational "clunking" noise, a clear indicator of impending failure.

The ECS Tuning Center Support Bearing Brace is designed to enhance the performance and longevity of your drivetrain. To improve upon the factory design, and to create a performance alternative, our engineers started by designing a set of exact-fit, split low durometer rubber bushings that clamp around your existing driveshaft bearing. Crafted from 30A durometer rubber, our material choice effectively eliminates bushing deflection without causing an increase in noise, vibration, and harshness. By eliminating deflection, this design ensures a longer lifespan than the stock center support bearing, making it a great investment for enthusiasts looking to maintain their aging BMW chassis.

The rubber bushings are encased in a high-strength 6061-T6 billet aluminum bracket, engineered for both durability and performance. Like the bushings, the bracket features a split design, allowing for seamless installation without the need to remove the entire driveshaft assembly, saving time and effort during maintenance or upgrades. To ensure reliable clamping and secure fastening, the bracket is equipped with two corrosion-resistant stainless steel socket head screws. This design simplifies bushing replacement and provides a dependable and sturdy hold, even under high torque and stress conditions.

FEATURES

Exact-fit bushings are made from 30A durometer rubber to eliminate bushing deflection while maintaining a smooth, quiet ride.
Solid fill rubber construction offers a longer lifespan than flimsy factory rubber, ideal for enthusiasts looking to eliminate future CSB-related problems.
Bushings are encased in a 6061-T6 billet aluminum bracket for enhanced durability and improved performance.
Both the bushings and the bracket feature a two-piece split design, allowing for seamless installation without driveshaft removal.
Designed with performance in mind, this upgrade eliminates excessive driveshaft movement for improved alignment and efficiency.
KIT CONTENTS

ECS Driveshaft Center Support Bushings
ECS Driveshaft Center Support Carrier
(2) Stainless Steel Hex Head Screws
Medium Strength Threadlocker
PRODUCT DEVELOPMENT

Our ECS Driveshaft Center Support Carrier was designed, engineered, tested, and quality-inspected by our Research and Development team at our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

INSTALLATION & SUPPORT

Need installation tips? We put together a full installation tutorial from start to finish including how to remove your OEM parts in detail! See our Installation PDF under the INSTALLATION Tab for more information.

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ECS - Corporate Logo
T#:53326239
Part#: 012996LA01KT
In Stock
New Item
$ 229.99 USD
Free Shipping
$ 229.99 USD
Free Shipping

The ECS Tuning Center Support Bearing Brace is engineered to improve drivetrain performance and longevity. The factory center support bearing features an internal rubber bushing to reduce NVH (noise, vibration, and harshness) transmission to the cabin. Unfortunately, this material choice falls short when it comes to performance applications. Under extreme load conditions, this bushing is prone to flexing, resulting in driveshaft misalignment. To address the shortcomings of the factory rubber center support carrier design, ECS engineers developed a set of precision-fit, solid rubber bushings that secure tightly around the existing driveshaft bearing. Constructed from 30A durometer rubber, this material eliminates bushing deflection while maintaining minimal noise, vibration, and harshness (NVH). By eliminating deflection, this innovative solution not only improves durability but also ensures a significantly longer service life than the OEM center support bearing—making it an excellent upgrade for aging BMW chassis.

The polyurethane bushings are surrounded by a robust 6061-T6 billet aluminum bracket designed with strength and reliability in mind. This bracket features a split design for hassle-free installation, eliminating the need to remove the driveshaft assembly entirely. To install the ECS Center Support Carrier, simply cut around your existing bearing, remove the factory brace, and clamp on your new bushings and bracket. This user-friendly approach saves time and simplifies maintenance or upgrades. Two stainless steel socket head screws are used to fasten the two-piece bracket, offering corrosion resistance and secure clamping under high torque and stress. This combination of materials and design ensures dependable performance and long-lasting durability, even in demanding applications.

Features & Benefits:

Performance-Designed Bushing Upgrade: 30A durometer rubber is used to eliminate bushing deflection while maintaining a smooth, quiet ride.
Improved Longevity: Solid rubber bushing construction offers a longer lifespan than the thin factory rubber, ideal for enthusiasts looking to eliminate future CSB-related problems.
Billet Aluminum Bracket: The upgraded bushings are encased in a 6061-T6 billet aluminum bracket for enhanced durability and improved performance.
Easy Installation: Both the bushings and the bracket feature a two-piece split design, allowing for seamless installation without driveshaft removal.
Reduce Deflection, Increase Rigidity: Designed with performance in mind, this upgrade eliminates excessive driveshaft movement for improved alignment and efficiency.
Kit Includes:

ECS Driveshaft Center Support Bushings
ECS Driveshaft Center Support Carrier
(2) Stainless Steel Hex Head Screws
Medium Strength Threadlocker
Installation Instructions:

ECS has provided a detailed, start-to-finish installation guide to aid in the process of installing your new Driveshaft Center Support Carrier.

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Powerflex - Corporate Logo
T#:53997732
Part#: PFF5-1428BLK
Ships in 1 Business Day
New Item
$ 50.99 USD
$ 50.99 USD
Lock down your xDrive drivetrain for the track. This 95A durometer Black Series polyurethane insert eliminates transfer case rotation, ensuring zero-compromise power delivery and immediate throttle response under maximum load.
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Powerflex - Corporate Logo
T#:53997744
Part#: PFF5-1526P
Ships in 1 Business Day
New Item
$ 41.99 USD
$ 41.99 USD
Eliminate xDrive drivetrain twist. This 80A durometer polyurethane insert slides into the factory transfer case mount, locking down deflection for immediate throttle response and track-ready durability.
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OS Giken - Corporate Logo
T#:54388400
Part#: MN023-AJ60K
Ships in 5 Business Days
New Item
$ 150.00 USD
Free Shipping
$ 150.00 USD
Free Shipping
Throw out bearing for OS Giken clutches
Powerflex - Corporate Logo
T#:54388391
Part#: PFF5-4655H
Back Ordered
New Item
$ 118.99 USD
Free Shipping on orders $49 and up
Stabilize your gearbox under heavy cornering loads. These 70A durometer Heritage mounts increase rigidity by 150% to prevent shift-linkage binding, utilizing a discrete dark grey finish to blend into your undercarriage.
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Powerflex - Corporate Logo
T#:53997745
Part#: PFF5-1526R
Ships in 1 Business Day
New Item
$ 41.99 USD
$ 41.99 USD
Stabilize your xDrive drivetrain with Powerflex. This 65A durometer polyurethane insert slides into your factory transfer case mount, eliminating high-torque deflection and optimizing power transfer under heavy loads.
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Powerflex - Corporate Logo
T#:54352784
Part#: PFF5-4634
Ships in 1 Business Day
New Item
$ 53.99 USD
$ 53.99 USD
Secure your shift gate alignment under high track loads. This 95A durometer polyurethane bushing replaces the flimsy factory oval rubber, eliminating shifter arm flex for fast, positive gear engagement.
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Powerflex - Corporate Logo
T#:54281644
Part#: PFR5-325H
Back Ordered
New Item
$ 44.99 USD
$ 44.99 USD
The Powerflex Heritage Series is a premium motorsport upgrade engineered to eliminate critical differential deflection. Molded from an advanced, proprietary polyurethane formula, this bushing stabilizes the differential nose under high-torque loading.
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Powerflex - Corporate Logo
T#:54352781
Part#: PFR5-1625H
Ships in 1 Business Day
New Item
$ 89.99 USD
$ 89.99 USD


Powerflex - Corporate Logo
T#:54281641
Part#: PFR5-326H
Ships in 1 Business Day
New Item
$ 139.99 USD
$ 139.99 USD
The Powerflex Heritage Collection replaces the soft factory unit with an engineered, high-performance polyurethane compound. It is designed to constrain differential rotation and stabilize the driveline without changing the classic aesthetic of the vehicle undercarriage.
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Powerflex - Corporate Logo
T#:54317182
Part#: PFR5-324H
Ships in 1 Business Day
New Item
$ 51.99 USD
$ 51.99 USD
Ensure your build operates at peak mechanical efficiency. Eliminate driveline slop and secure your differential assembly with track-proven engineering.
Powerflex - Corporate Logo
T#:54352762
Part#: PFR5-2025H
Ships in 1 Business Day
New Item
$ 89.99 USD
$ 89.99 USD
By stabilizing the differential's position relative to the subframe, the rear diff bushing helps maintain static axle angles under extreme loads, reducing wear on peripheral drivetrain components and providing a highly predictable, repeatable platform for track setups.
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Powerflex - Corporate Logo
T#:53997743
Part#: PFF5-1526
Ships in 1 Business Day
New Item
$ 41.99 USD
$ 41.99 USD
Lock down your xDrive transfer case. This polyurethane mount insert slips into the factory rubber voids to eliminate drivetrain deflection, optimizing power delivery and stabilizing the driveline under hard load.
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OS Giken - Corporate Logo
T#:54388380
Part#: MN021-BJ5
Ships in 2 Business Days
New Item
$ 1,920.00 USD
Free Shipping
$ 1,920.00 USD
Free Shipping
Upgrade your drivetrain and experience the perfect balance of track performance and street drivability.
Powerflex - Corporate Logo
T#:54388342
Part#: PFF5-4655BLK
Back Ordered
New Item
$ 118.99 USD
Free Shipping on orders $49 and up
Secure your gearbox geometry at the absolute limit. These 95A durometer Black Series mounts increase stiffness by 375%, preventing transmission twisting to ensure flawless shifting and maximum torque translation.
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Powerflex - Corporate Logo
T#:54352763
Part#: PFR5-2025BLK
Back Ordered
New Item
$ 102.99 USD
$ 102.99 USD
The Powerflex Black Series is engineered for maximum performance and minimum deflection