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BMW Drivetrain Parts for BMW F97 X3 M 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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VTT F9X X3/4M Rear Bushing Insert Kit

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:26404885

Part#: VTT-X3M-REAR-IN1

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$ 139.99 USD

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$ 139.99 USD

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VTT Billet BMW Transfer Case Bushing Inserts - Version A

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T#:26404870

Part#: VTT-XFER-CASE-BU

Ships in 10 Business Days

$ 137.99 USD

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$ 137.99 USD

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Soft bushings are the enemy of launching hard, and keeping your drivetrain together. The BMW Transfer Case bushings are notoriously soft, and that is the opposite of what you want when launching a car hard. You can replace the bushing with a solid one, but this is time-consuming usually requires lowering or removing the transfer case, and results in a lot of added NVH. The best path is simply to reduce the amount of flex of the factory bushing so you keep the nice manners when cruising around town, and at idle, but when its time to the launch the transfer case cannot move as it could without the insert. These come as a set of two with 2 bolts to keep them in place. Install time once you get to them is about 2-3 minutes. Could not be easier. Put some lube on them, push them in, and tighten the screws. These are a MUST for high-power G8X, and F9X X3/X4M Builds. All platforms they fit are below. Features: 6061- T6 aluminum construction Easy to install Fully reversible Do not add NVH

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VTT- Rear Differential Bushing Insert Kit- F97/F98 X3M X4M

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T#:25739329

Part#: VTT-F9X-RBIK

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$ 135.99 USD

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$ 135.99 USD

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VTT F9X X3/4M Front Bushing Inserts

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:26404887

Part#: VTT-X3M-FR-INS

Ships in 10 Business Days

$ 104.99 USD

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$ 104.99 USD

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Looking to fix the diff bolt issue on your F9X X3/4M? VTT has taken a 3 pronged approach by offering a triple solution, one part of the solution is the front diff bushing inserts. These are pressed into the factory bushing, and fill the voids in the bushing. This keeps the stock bushing ride compliance but removes any unwanted movement. These are sold as a set Kit includes: Two Billet Bushing inserts Two 46mm Hardened Steel Washers

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CSF High-Performance Heat Exchanger & Transmission Cooler Module - F9...

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:38229113

Part#: 8331

Ships on Nov 13, 2026

$ 1,289.00 USD

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$ 1,289.00 USD

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The F97 X3M and F98 X4M are powered by the same high-performance S58 engine found in the G8X M3, M4, and M2. While these SUVs deliver impressive power and speed, they also suffer from the same heat management challenges as their sedan and coupe counterparts. That’s where CSF’s advanced cooling solutions come in—becoming essential upgrades for S58 owners, even for those keeping their engines mostly stock. After over a year of development and testing, CSF is proud to introduce the Front Mount Heat Exchanger & Transmission Cooler Module for the F9X X3M and X4M. One of the biggest challenges in developing a Front Mount Heat Exchanger for these models was limited space. Unlike the G8X models, the X3M and X4M feature a different transmission oil cooler, restricting the available room for a larger heat exchanger due to the mounting cradle. After extensive testing with smaller core designs, CSF determined that integrating the Heat Exchanger with a Transmission Cooler Upgrade was the optimal solution for maximizing both size and performance. By combining both components into a single cooling module, CSF achieved a design that accommodates the same core size as the G8X Heat Exchanger. The integrated Auto Transmission Cooler utilizes the same dual-core design as the G8X Transmission Cooler and is seamlessly fitted to the new Heat Exchanger. This innovative all-in-one module not only addresses two major cooling issues for the X3M and X4M but also reduces overall costs—savings that are passed along to the customer. Compared to the stock heat exchanger, CSF’s upgraded design offers significant improvements. The TIG-welded aluminum tanks are much larger than the OE plastic tanks, providing superior strength and fluid volume. A 2-row 42mm core increases cooling efficiency and capacity, utilizing CSF’s Exclusive B-Tube Technology to enhance airflow and heat dissipation. Multi-louvered fins further expand the heat exchange surface area, improving overall cooling performance while maintaining proper airflow. Built entirely from high-strength aluminum, this system ensures maximum durability and reliability. The mounting tabs and brackets are significantly stronger than the factory plastic components, offering improved longevity. Additionally, the heat exchanger includes an integrated bolt-on metal rock guard, which is far more robust than the stock plastic version—providing better protection against road debris and ensuring greater confidence in the system’s resilience. CSF’s Transmission Cooler features an innovative dual-pass design that dramatically enhances cooling performance. Unlike the OEM single-core cooler, CSF’s front-to-back stacked core design more than doubles the surface area and nearly triples the core volume. Engineers leveraged the extra space freed up by replacing the OE cooler and oversized plastic cradle, effectively doubling cooling capacity while maintaining a perfect OEM fit—no modifications required. By switching from a single-core to a dual-core design, CSF achieved a 201% increase in overall volume, significantly improving heat dissipation and fluid capacity. Using CSF’s AC Condenser Technology, the cooler incorporates a high-pressure 1-row 16mm 9-channel microtube design, optimizing oil flow and maximizing surface area contact. These features work together to provide the most effective heat dissipation possible, keeping transmission temperatures under control even under extreme conditions. With CSF’s new Front Mount Heat Exchanger & Transmission Cooler Module, X3M and X4M owners can enjoy superior cooling efficiency, enhanced durability, and long-term performance—all in a cost-effective, OEM-fit package.

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Billet Transfer Case Bushing Inserts

For LCI vehicles equipped with an automatic transmission only

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:25739322

Part#: VTT-BTCBI

Ships in 10 Business Days

$ 136.99 USD

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$ 136.99 USD

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F9X X3/4M Billet Diff Lock Down Kit

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:26404860

Part#: VTT-F9X-LDK

Back Ordered

Starting at $ 314.99 USD

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Starting at $ 314.99 USD

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VTT noticed a hole in the F9X X3/4M 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. So we did something about it and 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 differential bolts, drill two holes in the subframe slightly bigger, install two M8 riv-nuts, and install the lockdown, you do not even have to move the exhaust. A typical install can be 30-45 minutes for someone who is experienced working on vehicles, an hour or two if you like taking it slow. Features: Lightweight 1.5 lbs for the entire lockdown plate Uses FOUR connection points on the Diff, and three 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 3 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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CSF Universal Large Single-Pass Oil Cooler - Universal Application ...

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Universal fitment design - modifications may be necessary to run this cooler

T#:53608839

Part#: 8371

Ships in 3 Business Days

$ 499.00 USD

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$ 499.00 USD

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CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.

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