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BMW Drivetrain Parts for BMW E90 M3 S65 4.0L

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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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9" Twin Disc Clutch Kit - Solid Organic Discs

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T#:17804823

Part#: XKBM23599-2G

Ships in 8 Business Days

$ 2,069.99 USD

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$ 2,069.99 USD

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The XClutch 9 inch kit is one of XClutch's most adaptable kits for performance upgrades and conversions. Designed specifically for high horsepower, street driven vehicles, the 9" twin disc organic is the ultimate street clutch. The twin disc organic upgrade optimizes pedal feel and reliability in high horsepower street driven vehicles. XClutch performance upgrades have been engineered to provide the ultimate in clutch performance. Utilizing the latest pressure plate design and friction material composition, XClutch upgrades offer the ideal balance between drivability and performance for different vehicle applications. The pivot point and diaphragm design are carefully analyzed to ensure positive pedal feel and increased clamping force. Specifications Clutch Disc Diameter - 9 1/16" Clutch Disc Spline - 26 Disc Material - Organic Disc Type - Solid Input Shaft Diameter - 1 3/8" Friction Surface Configuration - Raised Flywheel Step - +0.150 Assembly Weight Maximum Torque Capacity - 890 Recommended Use - Performance Street Use Includes Single Mass Flywheel 2 Solid Organic Clutch Discs Pressure Plate Assembly Flywheel Bolts Pressure Plate Bolts Pilot Bearing Release Bearing Clutch Spline Grease With one of the world's most advanced clutch testing and R&D facilities, in-house vehicle testing and over 30 years of clutch experience, XClutch performance upgrades offer the highest levels of engineering and product development for your street vehicle, 4x4 or dedicated race car.

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AC Hydraulic VL6 Transmission Jack - 1,300lb Capacity

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T#:41728758

Part#: TOL-VL6

Ships in 3 Business Days

19% off MSRP $ 667.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 539.99 USD

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19% off MSRP

$ 667.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 539.99 USD

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Having a transmission jack can prevent a lot of struggling and exhaustion from attempting to install a transmission by hand or through some other sketchy method we have all considered. AC Hydraulic's VL3 Transmission Jack is a great transmission jack that will alleviate these issues. In addition to being used for the transmisison, this jack is also great for other lifting operations such as the mounting of springs, fuel tanks, exhaust pipes, and more.

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CV Joint Boot Clamp Band Tool

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T#:5122269

Part#: W83011

In Stock

$ 23.31 USD

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$ 23.31 USD

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Helpful tool for proper axle boot installations.

Differential And LSD Tune

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T#:34382136

Part#: BM237HAKT

Ships in 2 Business Days

$ 2,100.00 USD

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$ 2,100.00 USD

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Upgrade to a better performing LSD, includes tune.

Rein DCT Transmission Service Kit - GS7D36 Transmission

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:17804809

Part#: 28107842828

In Stock at Vendor

$ 677.99

This product was last offered at the strikethrough price on
05-07-2026

$ 658.99 USD

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$ 658.99 USD

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Rein offers OE-quality components in all their service kits. This kit includes: Oil pan Gasket Clutch filter Suction filter Hardware

OS Giken E9X M3 Clutch Alignment and Installation Tool

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T#:2193

Part#: BM533-EB

Ships in 2 Business Days

$ 90.00 USD

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$ 90.00 USD

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This rugged tool simulates the input shaft of the 2008-2013 E9X M3 transmission, for easy installation of the OS Giken racing clutch kit. This tool is simply a must if you will be installing a clutch into the newer V8 model M3. This is a OS Giken part but can be used for other E9X M3 clutch kits where a more durable metal tool is called for.

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E9X M3 - SPEC Carbon Graphite Clutch (With Flywheel)

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T#:342325

Part#: SB93ST

Ships in 3 Business Days

$ 1,999.00 USD

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$ 1,999.00 USD

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Upgrade the clutch performance of your BMW E9X M3 equipped with the S65 4.0L engine using the SPEC Carbon Graphite Clutch. Engineered specifically for this setup, this high-performance clutch delivers outstanding durability and exceptional power handling capabilities, catering to enthusiasts seeking superior clutch performance.

Crafted from premium materials, the SPEC Carbon Graphite Clutch guarantees reliable power transfer, improved grip, and reduced wear. Elevate your driving experience with this precision-engineered clutch upgrade.

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Lisle CV Boot Clamp Pliers

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T#:5512204

Part#: LIS30600

Ships in 1 Business Day

$ 48.99

This product was last offered at the strikethrough price on
05-07-2026

$ 47.99 USD

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$ 47.99 USD

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Crimps Ear-Type Clamps in Hard-to-Reach Areas.

E46 M3, E9X M3, E34 M5, E39 M5, Z4 M OS Giken Super Lock Limited Slip...

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T#:1387

Part#: BM237-HA

Ships in 2 Business Days

$ 1,950.00 USD

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$ 1,950.00 USD

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The M Dynamic limited slip unit on the M3 is designed to be a pure street car differential. It's simply not up to the rigors of professional or amateur racing. The OS Giken Super Lock LSD is giant step up in from a stock M3 lsd unit. It's ready for the extreme conditions of racing, offers 100% progressive locking capability, and is able to do this while operating smoothly and quietly. It's use of advanced technologies that make it perfect for both street cars AND pro race cars... and everything in between. We're excited to be carrying the OS Giken LSD unit in our performance catalog, as we've been using them in our own Championship winning M3 race cars.

OS Giken incorporated revolutionary new ideas when developing the their own limited slip diff, utilizing their accumulated racing knowledge and experience and over 4 years of development. Their design uses an unprecedented number of friction plates (up to 28 total!) for better locking force, better engagement/disengagement, and less generated heat. The end result of their efforts is the OS Giken's OS Super Lock LSD which offers incredible durability and reliability on street and track driven BMWs. The use of highest quality materials, precise machining, forged gears and sound engineering makes this LSD durable and reliable enough for road racing performance (which we can personally vouch for!). This is such a great design, in that it can be used in any situation -- whether it's for a street car, or a 100% Professional race car. Zero break-in required. Super smooth and quiet engagement, and 100% progressive locking capability. Professional installation is recommended.

This Limited Slip Differential Unit fits the following BMWs:
2001-2006 E46 M3 coupe & convertible
2008-2013 E9X M3 coupe & convertible
1991-1995 E34 M5 sedan
1999-2003 E39 M5 sedan
2006-2008 E85 Z4M Z4 M Coupe, Z4 M Roadster

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9" Twin Disc Clutch Kit - Solid Ceramic Discs

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T#:17804822

Part#: XKBM23599-2E

Ships in 2 Business Days

$ 1,982.99 USD

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$ 1,982.99 USD

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The XClutch 9 inch kit is one of XClutch's most adaptable kits for performance upgrades and conversions. The twin disc 9" range with ceramic friction discs are designed for high horsepower motorsport applications where a high heat and torque capacity is required. XClutch performance upgrades have been engineered to provide the ultimate in clutch performance. Utilizing the latest pressure plate design and friction material composition, XClutch upgrades offer the ideal balance between drivability and performance for different vehicle applications. The pivot point and diaphragm design are carefully analyzed to ensure positive pedal feel and increased clamping force. Specifications Clutch Disc Diameter - 9 1/16" Clutch Disc Spline - 26 Disc Material - Ceramic Disc Type - Solid Input Shaft Diameter - 1 3/8" Friction Surface Configuration - Raised Flywheel Step - +0.150 Assembly Weight Maximum Torque Capacity - 1350 Recommended Use - Track Use Includes Single Mass Flywheel 2 Solid Ceramic Clutch Discs Pressure Plate Assembly Flywheel Bolts Pressure Plate Bolts Pilot Bearing Release Bearing Clutch Spline Grease With one of the world's most advanced clutch testing and R&D facilities, in-house vehicle testing and over 30 years of clutch experience, XClutch performance upgrades offer the highest levels of engineering and product development for your street vehicle, 4x4 or dedicated race car.

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E9X M3 OS Giken High Performance Racing Clutch & Flywheel Kit ...

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T#:338592

Part#: BM533-BF6

Ships in 2 Business Days

Starting at $ 2,150.00 USD

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Starting at $ 2,150.00 USD

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This racing flywheel and clutch kit is made by renowned drivetrain specialist OS Giken. Complete fly wheel & clutch setup as used on our own TMS E92 M3 race cars. This setup is ideal for both endurance racing or high horsepower applications that have very limited street use but require more clamping power than stock. It has been approved for use in the GRAND AM Continential Challenge GS race class, approved by GRAND AM rules and regulations.

Includes flywheel, clutch discs (2 disc clutch), center plate, pressure plate, aluminum cover, 360 degree housing (for clutch assembly), cover bolts, flywheel bolts, throw-out bearing, and release sleave assembly. Weighs 5% less than the stock E90/E92 M3 flywheel and clutch setup. This setup is intended for racing use only (not for daily driven street cars.) We recommend using the OS Giken clutch alignment tool during installation (sold separately).

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JB Racing Aluminum Lightweight Flywheel - E9X M3

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T#:5774218

Part#: 520-210-215

Ships in 5 Business Days

$ 1,106.00 USD

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$ 1,106.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

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