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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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Powerflex - Corporate Logo
T#:53997732
Part#: PFF5-1428BLK
Back Ordered
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#:54388391
Part#: PFF5-4655H
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$ 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#: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#: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#: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#: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#: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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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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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#:54352781
Part#: PFR5-1625H
Ships in 1 Business Day
New Item
$ 89.99 USD
$ 89.99 USD
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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Vargas Turbo Technologies - Corporate Logo
T#:51778109
Part#: VTT-X3-REAR-INSE
Ships in 10 Business Days
New Item
$ 109.99 USD
Free Shipping
$ 109.99 USD
Free Shipping
The VTT G0X Rear Bushing Insert Kit is a critical preventative upgrade for owners of BMW G-Series vehicles.
Vargas Turbo Technologies - Corporate Logo
T#:51778133
Part#: VTT-SUP-DS
Ships in 10 Business Days
New Item
$ 1,214.99 USD
Free Shipping
$ 1,214.99 USD
Free Shipping
The VTT 4130 Chromoly Driveshaft is a heavy-duty driveline upgrade designed specifically for the A90/91 Toyota Supra.
Vargas Turbo Technologies - Corporate Logo
T#:52129733
Part#: G8XDIFFINSFRT
Ships in 10 Business Days
New Item
$ 132.99 USD
Free Shipping
$ 132.99 USD
Free Shipping
The Vargas Turbo Technologies Front Diff Reinforcement Kit is a vital upgrade for high-horsepower S58-powered vehicles.

Vargas Turbo Technologies - Corporate Logo
T#:52129738
Part#: VTT-G8X-LOCKDOWN
Ships in 10 Business Days
New Item
$ 739.99 USD
Free Shipping
$ 739.99 USD
Free Shipping
This black-anodized kit provides the reinforcement BMW intended but never fully realized in the factory design.

Vargas Turbo Technologies - Corporate Logo
T#:52129737
Part#: G8XDIFFINSTRO
Ships in 10 Business Days
New Item
$ 132.99 USD
Free Shipping
$ 132.99 USD
Free Shipping
The G8X Rear Billet Diff Insert Kit is a precision-machined reinforcement component that installs directly into the rear differential bushing.
Vargas Turbo Technologies - Corporate Logo
T#:51672704
Part#: VTT-SUPRA-DRIVES
Ships in 10 Business Days
New Item
$ 1,769.99 USD
Free Shipping
$ 1,769.99 USD
Free Shipping
The VTT A90/91 Supra Carbon Fiber Driveshaft is the definitive solution for MK5 owners who demand ultimate strength without the drag of a heavy OEM assembly.

VTT Carbon Fiber Driveshaft - BMW F90 M5
VIN Required For Purchase - Please call in to order this item - Out of stock Carbon Driveshaft orders may take 1-6 moths due to production lead times
Vargas Turbo Technologies - Corporate Logo
T#:49857421
Part#: VTTCFDSF90M5
Ships in 10 Business Days
New Item
$ 2,099.99 USD
Free Shipping
$ 2,099.99 USD
Free Shipping
VTT is proud to offer a premium carbon fiber driveshaft, manufactured exclusively for VTT in the USA by PST, one of the most respected names in carbon fiber driveshaft technology. Each driveshaft is constructed using 3.25″ carbon fiber tubing, paired with Spicer 1350 yokes and U-joints, then bonded using PST’s proprietary process and precision balanced to within 1/8 in-oz as a complete assembly.
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Powerflex - Corporate Logo
T#:54388342
Part#: PFF5-4655BLK
Back Ordered
New Item
$ 118.99 USD
$ 118.99 USD
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