BMW Drivetrain Parts for BMW G82 M4 S58 3.0L

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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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Packaged by Turner - Corporate Logo
T#:40545940
Part#: G8X-USRKT2
Ships on Nov 9, 2026
Sale - Save 18% $ 614.99

This product was last offered at the strikethrough price on
05-03-2026

$ 502.39 USD
Free Shipping on orders $49 and up
Sale - Save 18%
$ 614.99

This product was last offered at the strikethrough price on
05-03-2026

$ 502.39 USD
Free Shipping on orders $49 and up

Over time, factory rubber bushings and plastic components break down, leaving your shifter feeling loose, vague, and disconnected. That lack of precision doesn’t just dull the driving experience—it takes away from the performance BMWs are known for. If your G8X shifter isn’t delivering the crisp engagement you expect, we've developed an all-inclusive fix.

The Ultimate G8X Shifter Rebuild & Upgrade Kit has been expertly crafted by our team of BMW enthusiasts to bring back the sharp, direct shifting feel your BMW deserves. This all-in-one kit combines high-performance upgrades with refreshed OEM hardware, offering a complete overhaul for your shifting system:

Turner Motorsport G8X Dual-Shear Selector Rod (DSSR)

Dual-contact design delivers smoother, more accurate gear changes compared to the OEM single-sided rod

Precision-machined from 6061-T6 billet aluminum for strength and durability

Includes custom-fit shims and connecting pins for easy installation

Maintains factory 232mm length, ensuring there is no change to the factory shift knob position

Replaces OEM Part #: 25118097173

Turner Motorsport G8X Polyurethane Rear Shifter Bushing

Ditch the soft factory rubber! This polyurethane upgrade reduces play and sharpens feedback

CNC-machined aluminum housing with 70A high-durometer polyurethane insert

Corrosion-resistant Type II anodized finish

Replaces OEM Part #: 25118623459

ECS Teflon Shifter Bushing Kit

Replaces the front rubber bushing with low-friction, long-lasting Teflon

Reduces side-to-side play in the shifter carrier

Includes new carrier pins for a complete install

Replaces OEM Part #: 25117507695

Also included are essential Genuine and OE components to ensure a full-service refresh:

BMW Shifter Rod Joint – 25117580281

Vaico Circlips (Qty 2) – 25117571899

Bremmen Shifter Ball Bushing – 25111220600

Experience precision like never before—upgrade your shifting experience today with the Ultimate Shifter Rebuild & Upgrade Kit.

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Mishimoto - Corporate Logo
T#:378417
Part#: MMTCU
In Stock
$ 110.99 USD
Free Shipping
$ 110.99 USD
Free Shipping
The Mishimoto Universal Transmission & Power Steering Cooler is used to cool automatic transmissions. Some Mishimoto radiators are only available for manual transmission applications; by using the universal transmission cooler, automatic transmission users have the ability to use our aluminum radiators with their automatic applications that would otherwise require an integrated transmission cooler. Fender bender damage your cooler? Mishimoto has you covered under its no questions asked warranty policy. Mishimoto will provide a warranty for all claims including vehicles involved in accidents. Warranty claims must include pictures of the accident and an official police report, and must be within three months of the accident. Dimensions of this core are 3/4" x 5" x 12". WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Packaged by Turner - Corporate Logo
T#:31092591
Part#: TMSG8XM3MTSKT1
In Stock
$ 86.99 USD
Free Shipping on orders $49 and up
The oil in your manual transmission is extremely vital to the life of your transmission. Over time it will begin to break down, lose viscosity, and begin to allow excess heat and friction. This kit is the perfect remedy to this problem. Included are 2 Liters of Liqui-Moly's 8100 transmission fluid, which is recommended by Liqui-Moly for this manual transmission and features a fully synthetic base for better protection and wear resistance, and Genuine BMW fill and drain plugs.
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Packaged by Turner - Corporate Logo
T#:31092589
Part#: TMSG8XM3MTSKT
In Stock
$ 99.99 USD
Free Shipping on orders $49 and up
The oil in your manual transmission is extremely vital to the life of your transmission. Over time it will begin to break down, lose viscosity, and begin to allow excess heat and friction. This kit is the perfect remedy to this problem. Included are 2 Liters of Redline DCTF transmission fluid, which is recommended by Redline for this manual transmission and features a fully synthetic base for better protection and wear resistance, and Genuine BMW fill and drain plugs.
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VTT BMW Carbon Fiber Driveshaft - G8X RWD
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:44122898
Part#: DRVSTCFG8XRWD
Ships in 10 Business Days
$ 1,999.99 USD
Free Shipping
$ 1,999.99 USD
Free Shipping
Upgrade your driveshaft to carbon fiber to reduce weight while improving driveline responsiveness and feel thanks to the elimination of rubber universal joints.
Mishimoto - Corporate Logo
T#:21209834
Part#: MMTC-G80-21
In Stock at Vendor
$ 698.99 USD
Free Shipping on orders $49 and up
The ZF 8-speed transmission found in the 2021+ BMW G8X M3/M4 is a stout and snappy unit that's capable of withstanding the onslaught of torque brought on by the S58 engine it's mated to. Add a tune and some bolt-ons, and the stock cooler just can't keep the ZF 8HP safe. This inadequacy can lead to high transmission oil temperatures, sluggish shifting, and potential transmission damage. Fortunately, the engineers at Mishimoto have developed a transmission cooler to maintain optimal fluid temps and keep your ZF 8HP running in peak condition. The Mishimoto 2021+ BMW G8X M3/M4 Performance Transmission Cooler excels with its impressive 41-percent increase in core volume, delivering superior cooling efficiency compared to the stock cooler and keeping your transmission cool even in the most demanding driving conditions. This transmission cooler also offers a generous 17-percent increase in fluid capacity to increase the cooling potential of the entire system. Internal cooling fins increase the surface area in contact with the fluid to improve heat transfer and efficiency. The dual-pass design keeps fluid in the cooler longer, removing more heat without affecting airflow to other cooling components behind the transmission cooler. High fluid temps aren't the only worry on the track or the road; your trans cooler sits front and center in the grille, taking every hit from road debris. That's why we've included a durable steel stone guard to protect the trans cooler and keep fluid where it belongs. Installation is quick and easy, as no modifications are required. Like all Mishimoto products, the Mishimoto 2021+ BMW G8X M3/M4 Automatic Transmission Cooler comes with the Mishimoto Lifetime Warranty, providing peace of mind and confidence in your investment. Features: Direct fit for ZF 8HP equipped 2021+ BMW G8X M3/M4 17 percent increase in fluid capacity for added cooling potential 41 percent increase in core volume for fast and efficient cooling Dual-pass design improves cooling performance without reducing airflow to other components Includes removable steel stone guard for protection against road and track debris Internal fins increase cooling surface area and heat transfer 17 rows core vs. 14-row stock cooler for increased cooling surface area Mishimoto Lifetime Warranty Includes: (1) Transmission Cooler with Hard Lines Mishimoto Lifetime Warranty
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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#: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.

Packaged by Turner - Corporate Logo
T#:56254753
Part#: B8800120KT2
Ships on Oct 19, 2026
New Item
$ 177.99 USD
Free Shipping on orders $49 and up
Combining a heavy duty hub adapter with dedicated slide hammer and impact force screw attachments, this kit is built for serious mechanics and track day drivers who need unyielding strength to get the job done right the first time.
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