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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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Billet Diff Lock Down Kit
Billet Diff Lock Down Kit
Vargas Turbo Technologies - Corporate Logo
T#:21176906
Part#: VTT-A9X-DLD
In Stock
Sale - Save 7% $ 313.99

This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD
Free Shipping on orders $49 and up
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Sale - Save 7%
$ 313.99

This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD
Free Shipping on orders $49 and up
Add to Wish List
VTT noticed a hole in the A9X/Z4 market for a high-quality, lightweight, NVH-friendly, and easy-to-install Diff Lock Down kit to improve diff stability under launching, and hard cornering. Vargas went to work on a very innovative design that 100% positively locks the diff down from movement, while shielding it from adding a ton of NVH, and can be used with the stock diff, and subframe bushings. This design uses existing mounting points on the vehicle, you do NOT have to remove the subframe or the Diff to install. Simply remove 4 diff bolts, drill two holes in the subframe slightly bigger, install two M10 riv-nuts, and install the lockdown, you do not even have to move the exhaust. A typical install can be 15-30 minutes for someone who is experienced. You will need a Riv-nut tool to install the Riv-nuts as one is not included. Features: Lightweight 1.5 lbs for the entire lockdown plate Uses FOUR connection points on the Diff, and two on the subframe for the ultimate in positive diff location, this will stop all diff movement on launch, saving your guibos, etc 100% Billet construction from 6061-T6 aluminum Anodized in 4 colors for corrosion resistance, a long-lasting finish, and good looks The subframe does NOT have to be removed for installation Uses all 12.9 grade hardware Does not add excessive NVH Positively locks down the diff to eliminate all unwanted movement under launches, acceleration, cornering, etc.
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GSP Rear Axle Assembly - Left - F06, F10, F12, F13
GSP Rear Axle Assembly - Left - F06, F10, F12, F13
GSP North America - Corporate Logo
T#:54388486
Part#: NCV28001K
In Stock
New Item
$ 141.99

This product was last offered at the strikethrough price on
06-24-2026

$ 129.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
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$ 141.99

This product was last offered at the strikethrough price on
06-24-2026

$ 129.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Add to Wish List
When it comes to keeping your ultimate driving machine planted and putting power to the pavement, compromise isn't an option. Since 2004, GSP has been an industry leader in North American drivetrain technology, consistently beating the competition to market with the newest applications and broadest coverage.
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GSP Front Axle Assembly - Left - F39, F48, F54, F60
GSP Front Axle Assembly - Left - F39, F48, F54, F60
GSP North America - Corporate Logo
T#:54388487
Part#: NCV49013
Ships in 2 Business Days
New Item
$ 175.99 USD
Free Shipping on orders $49 and up
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$ 175.99 USD
Free Shipping on orders $49 and up
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When it comes to keeping your ultimate driving machine planted and putting power to the pavement, compromise isn't an option. Since 2004, GSP has been an industry leader in North American drivetrain technology, consistently beating the competition to market with the newest applications and broadest coverage.
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Vargas Rear Bushing Insert Kit - BMW G0X X3/X4, G11/12 7
Vargas Rear Bushing Insert Kit - BMW G0X X3/X4, G11/12 7
Vargas Turbo Technologies - Corporate Logo
T#:51778109
Part#: VTT-X3-REAR-INSE
Ships in 10 Business Days
New Item
$ 109.99 USD
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$ 109.99 USD
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The VTT G0X Rear Bushing Insert Kit is a critical preventative upgrade for owners of BMW G-Series vehicles.
GSP Axle Assembly - Rear Right - R60, R61
GSP Axle Assembly - Rear Right - R60, R61
GSP North America - Corporate Logo
T#:54388515
Part#: NCV49044
Ships in 3 Business Days
New Item
$ 116.99 USD
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$ 116.99 USD
Free Shipping on orders $49 and up
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In the world of European performance, your drivetrain is only as strong as its weakest link. If your right rear axle is suffering from torn boots or worn CV joints, you are losing efficiency and risking a critical failure on the street or the autocross pad. The GSP Rear Right Axle Assembly offers a precision-engineered solution to restore the structural integrity of your vehicle's drivetrain.
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Vargas Front Differential Bushing Reinforcement Insert Kit - Front - BMW G8X
Vargas Front Differential Bushing Reinforcement Insert Kit - Front - ...
Vargas Turbo Technologies - Corporate Logo
T#:52129733
Part#: G8XDIFFINSFRT
Ships in 10 Business Days
New Item
$ 132.99 USD
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$ 132.99 USD
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The Vargas Turbo Technologies Front Diff Reinforcement Kit is a vital upgrade for high-horsepower S58-powered vehicles.
Vargas Front Differential Bushing Reinforcement Insert Kit - Rear - BMW G8X
Vargas Front Differential Bushing Reinforcement Insert Kit - Rear - B...
Vargas Turbo Technologies - Corporate Logo
T#:52129737
Part#: G8XDIFFINSTRO
Ships in 10 Business Days
New Item
$ 132.99 USD
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$ 132.99 USD
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The G8X Rear Billet Diff Insert Kit is a precision-machined reinforcement component that installs directly into the rear differential bushing.
GSP Rear Axle Assembly - Priced Each - E39
GSP Rear Axle Assembly - Priced Each - E39
GSP North America - Corporate Logo
T#:54388485
Part#: NCV27055
Ships in 2 Business Days
New Item
$ 198.99 USD
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$ 198.99 USD
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When it comes to keeping your ultimate driving machine planted and putting power to the pavement, compromise isn't an option. Since 2004, GSP has been an industry leader in North American drivetrain technology, consistently beating the competition to market with the newest applications and broadest coverage.
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Vargas Billet Differential Lock Down Kit - Black - BMW G8X
Vargas Billet Differential Lock Down Kit - Black - BMW G8X
Vargas Turbo Technologies - Corporate Logo
T#:52129738
Part#: VTT-G8X-LOCKDOWN
Ships in 10 Business Days
New Item
$ 739.99 USD
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$ 739.99 USD
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This black-anodized kit provides the reinforcement BMW intended but never fully realized in the factory design.
Vargas Carbon Fiber Driveshaft - Toyota A90/91 Supra
Vargas Carbon Fiber Driveshaft - Toyota A90/91 Supra
Vargas Turbo Technologies - Corporate Logo
T#:51672704
Part#: VTT-SUPRA-DRIVES
Ships in 10 Business Days
New Item
$ 1,769.99 USD
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$ 1,769.99 USD
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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.
GSP Axle Assembly - Front Right - R50
GSP Axle Assembly - Front Right - R50
GSP North America - Corporate Logo
T#:54388377
Part#: NCV49501
Ships in 2 Business Days
New Item
$ 164.99 USD
Free Shipping on orders $49 and up
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$ 164.99 USD
Free Shipping on orders $49 and up
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Don't wait for a total CV joint failure to leave you stranded at the track or on the side of the highway. It’s time to restore drivetrain integrity with these brand new replacement axle assemblies from GSP.
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Vargas 4130 Chromoly Driveshaft - Toyota A90/91 Supra
Vargas 4130 Chromoly Driveshaft - Toyota A90/91 Supra
Vargas Turbo Technologies - Corporate Logo
T#:51778133
Part#: VTT-SUP-DS
Ships in 10 Business Days
New Item
$ 1,214.99 USD
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$ 1,214.99 USD
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The VTT 4130 Chromoly Driveshaft is a heavy-duty driveline upgrade designed specifically for the A90/91 Toyota Supra.
VTT Carbon Fiber Driveshaft - BMW F90 M5
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
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$ 2,099.99 USD
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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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