BMW Drivetrain Parts for BMW Z Series E85/6 (2003-2008)

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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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Rogue Engineering - Corporate Logo
T#:641617
Part#: TM
In Stock
$ 69.00 USD
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$ 69.00 USD
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Unlike other aftermarket mounts, the mounting plate and studs of our mounts have been Zinc-plated to prevent corrosion. Rogue Engineering Transmission Mounts are sold as a pair, and come with Grade 8 Zinc plated hardware. Rogue Engineering transmission mounts are designed with street comfort in mind while still reducing left and right movement of the transmission. By using a cylindrical shape instead of the factory hourglass like design and utilizing Neoprene rubber deflection can be significantly reduced, minimizing unwanted transmission movement while maintaining vibration dampening characteristics.
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DKM Stage 1 Single-Mass Flywheel and Performance Clutch Kit - E34 E36...
For vehicles with production date up to 10/2003 Not for SMG Transmission Cars!
DKM - Corporate Logo
T#:393279
Part#: MA-006-005
Ships on Nov 17, 2026
$ 749.99 USD
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$ 749.99 USD
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Looking to upgrade your stock clutch to something a little more beefy?  The performance clutch kits from DKM are a great option to help get power to the wheels without breaking the bank. Working with Competition Clutch, DKM clutch discs and plates are constructed using quality materials to obtain greater strength and heat tolerance than OE clutches, helping to prevent wear and tear while still giving you increased toque capacity for quicker shifts and more power management.

Stage 1 Kits are best for moderately modified vehicles that want to add a single mass flywheel for quicker revs and a sportier engagement, without adversely affecting the clutch pedal's feel. *This is a 10 Spline clutch kit.*

This Stage 1 performance clutch kit includes the following items:

  • Pressure Plate
  • Sprung Organic Disc
  • Iron Single Mass Flywheel
  • Pilot Bearing/Bushing and Throw-out Bearing
  • Alignment Tool

     

**For vehicles with 5-speed transmission only.

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Clutch Masters - Corporate Logo
T#:559369
Part#: FW-219-SF
Ships in 2 Business Days
$ 566.99 USD
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$ 566.99 USD
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BMW E46 E39 Z3 Z4 Lightweight Steel Flywheel is an exceptional performance upgrade designed to enhance your driving experience by providing quicker revs and reducing turbo lag. Engineered by Turner Motorsport, this flywheel is constructed from high-quality 6061-T6 billet aluminum with a high-carbon steel replaceable friction surface, ensuring durability and improved acceleration.

  • Increased Acceleration: Reduced mass results in quicker engine revs and enhanced acceleration.
  • High-Quality Materials: Made from 6061-T6 aircraft-grade billet aluminum for exceptional strength and performance.
  • Durable Construction: Features a high-carbon steel replaceable friction surface and an OE steel ring gear secured by bolts.
  • Lifetime Warranty: Comes with a limited lifetime warranty, underscoring its reliability and long-term performance.
  • SFI Certification: Meets SFI Spec 1.1 or 1.2 standards, ensuring high-quality construction and safety.

This lightweight flywheel fits the following BMW models:

  • 1999-2002 E46 BMW 323i, 323ci, 325i, 325ci, 328i, 328ci, 330i, 330ci (with 5-speed manual transmission)
  • 2001-2005 E46 BMW 325xi, 330xi
  • 1997-2002 Z3 BMW Z3 2.3, Z3 2.5i, Z3 2.8, Z3 3.0i
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Clutch Masters Stage 1 Clutch Kit - FX100
For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
For Vehicles with S5D250G-TAJS Transmission (5-Speed with 10-Spline Input Shaft)
Clutch Masters - Corporate Logo
T#:567239
Part#: 03005-HD00-D
In Stock
$ 522.99 USD
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$ 522.99 USD
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Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Dampened Disc version. 

  • FX100 (Stage I)

  • High performance street system

  • Holding capacity 70% over stock

  • Heavy-Duty reinforced pressure plate

  • Hi-Leverage™ pressure ring design

  • Sprung hub/cushioned disc

  • Steel-backed organic friction material

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Stage 2 Performance Clutch Kit - With Single Mass Flywheel
For vehicles with production date up to 10/2003 Not for SMG Transmission Cars!
DKM - Corporate Logo
T#:17970622
Part#: MB-006-005
In Stock
$ 999.99 USD
$ 999.99 USD
Working in collaboration with Competition Clutch, the up-and-coming German automotive performance company DKM has released a new line of high quality clutches made to satisfy your stock and modified performance needs! If you're having problems keeping power to the wheels, DKM has the solution. Their design, using high-grade materials, gives you increased strength and heat tolerance preventing wear and fade, ensuring increased torque capacity, quicker shifts, and a longer clutch life. For aggressive street use and moderate track use, the MB Clutch Kit is a performance clutch kit that upgrades you to a single Single Mass Flywheel and provides up to 80% increase in torque capacity over the MA series clutch kits. Allowing for quicker revs, this Kit will give your car a little pep while retaining factory-like pedal feel. Kit Contents: Pressure Plate Sprung Organic Disc Iron Single Mass Flywheel Pilot Bearing/Bushing and Throw-out Bearing (when applicable) Alignment Tool For vehicles with 5-speed transmission only. Select your vehicle for additional fitment information. **Due to the nature of lightened single-mass flywheels added "NVH" or "chatter" will or may occur during operation. Accompanying modifications can also increase the amount of "NVH" or "chatter" in the drivetrain. Please contact our sales team with any questions.**
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ACT - Corporate Logo
T#:29002055
Part#: 601170
In Stock at Vendor
$ 830.00 USD
Free Shipping on orders $49 and up

The ACT Streetlite flywheel offers the following benefits:

Noticeably improved engine response and acceleration: Experience a significant boost in engine performance and acceleration with this component. OE to mild gear rattle: Expect only minimal gear rattle, from Original Equipment (OE) standards to a mild level, ensuring a smoother drive. Heat-treated forging for strength and toughness: Crafted using heat-treated forging, this part guarantees enhanced strength and durability. Induction-hardened ring gears for maximum life: The ring gears undergo induction hardening, providing maximum lifespan and reliability. One-piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc: The one-piece design reduces potential failure points and ensures uniform and efficient heat transfer from the clutch disc, preventing issues like warped inserts or loose ring gears. Recommended for street and race use: This component is ideal for both everyday street driving and competitive racing environments.

Forged, CNC machined, and dynamically computer balanced for smooth high RPM reliability: Expertly forged, CNC machined, and dynamically balanced via computer to ensure smooth and reliable performance at high RPMs.

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Clutch Masters Stage 3+ FX350 Clutch Kit
For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
For Vehicles with S5D250G-TAJS Transmission (5-Speed with 10-Spline Input Shaft)
Clutch Masters - Corporate Logo
T#:567252
Part#: 03005-HDFF-D
In Stock
$ 671.99 USD
Free Shipping
$ 671.99 USD
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*Does not include flywheel. Requires use of single mass flywheel The FX350 System uses the Power Plus I, Hi-Levarage, Heavy-Duty Pressure Plate utilizing our Fiber-Tough friction material. This clutch has a slightly increased holding capacity then the FX300 but will have a slightly more aggressive engagement and will produce some chatter. Similar to the FX300 this clutch is designed for the serious street enthusiast who also might spend a weekend and the track and is running a normally aspirated car that has been highly tuned with cylinder head work such as cams, or with a medium-boost turbo or supercharger setup, or up to 100hp NO2. For years enthusiasts have had to compromise durability for longevity for drivability and vice versa, however with our Fiber-Tough material we have closed the gap between these two tradeoffs. * Heavy-Duty Segmented Fiber-Tough Disc Steel Backed Segmented Fiber-Tough Friction Material Heavy-Duty Sprung Hub (when applicable) Marcel Spring Wafer OEM or better Release Bearing Pilot Bearing (when applicable) Alignment Tool Instruction Card Decals *Organic/ Kevlar/ Fiber-Tough Clutch kits are expected and tend to have a higher life expectancy than OEM, however not guaranteed. Improper Installation, Driving style, performance upgrades, Break in procedure and light weight flywheels will effect and have a role in determining the life expectancy of the clutch kit.
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Clutch Masters Stage 4 Clutch Kit - FX400
For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
For Vehicles with S5D250G-TAJS Transmission (5-Speed with 10-Spline Input Shaft)
Clutch Masters - Corporate Logo
T#:567255
Part#: 03005-HDCL-D
Ships in 3 Business Days
$ 671.99 USD
Free Shipping
$ 671.99 USD
Free Shipping

Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Dampened Disc version.

  • FX400 (Stage 4)

  • High performance street system

  • Holding capacity 70% over stock

  • Heavy-Duty reinforced pressure plate

  • Hi-Leverage™ pressure ring design

  • Sprung hub/cushioned disc

  • Steel-backed Ceramic Lined Sprung Disc friction material

*This clutch kit does not include a flywheel. Requires use of single mass flywheel 

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OS Giken - Corporate Logo
T#:34382136
Part#: BM237HAKT
Ships in 2 Business Days
$ 2,100.00 USD
Free Shipping on orders $49 and up
Upgrade to a better performing LSD, includes tune.

OS Giken - Corporate Logo
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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Clutch Masters - Corporate Logo
T#:559368
Part#: FW-219-AL
Ships in 7 Business Days
$ 566.99 USD
Free Shipping
$ 566.99 USD
Free Shipping

An excellent performance upgrade so you can enjoy quicker revs and eliminate excess turbo lag. Made of high quality 6061-T6 billet aluminum, with a high-carbon steel replaceable friction surface, this flywheel from Clutch Masters is sure to be a great upgrade for anyone looking to reduce crankshaft drag and increase acceleration.

Typical benefits of a Clutch Masters lightweight flywheel:

  • Reduced mass equals increased acceleration
  • CM uses only 6061-T6 aircraft grade or better billet aluminum in the manufacturer of its flywheels
  • CM uses an OE steel ring gear secured by bolts
  • CM offers a limited lifetime warranty
  • CM Billet Aluminum Flywheels meet SFI Spec 1.1 or 1.2
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Clutch Masters Stage 3 Clutch Kit - FX300
For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
For Vehicles with S5D250G-TAJS Transmission (5-Speed with 10-Spline Input Shaft)
Clutch Masters - Corporate Logo
T#:567249
Part#: 03005-HDTZ-D
Ships in 7 Business Days
$ 731.99 USD
Free Shipping
$ 731.99 USD
Free Shipping

Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Dampened Disc version. 

  • FX300 (Stage 3)

  • High performance street system

  • Holding capacity 70% over stock

  • Heavy-Duty reinforced pressure plate

  • Hi-Leverage™ pressure ring design

  • Ridged hub/cushioned disc

  • Steel-backed Sprung Hub Segmented Kevlar Disc friction material

*Does not include flywheel. requires use of single mass flywheel  

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Clutch Masters FX250 Stage 2 Clutch Kit
For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
For Vehicles with S5D250G-TAJS Transmission (5-Speed with 10-Spline Input Shaft)
Clutch Masters - Corporate Logo
T#:567246
Part#: 03005-HD0F-D
Ships in 7 Business Days
$ 621.99 USD
Free Shipping
$ 621.99 USD
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Upgrade the holding power of your clutch with the Clutch Masters FX250 clutch kit.

FX250 (Stage II)

  • Extra long life street system
  • Holding capacity 70% over stock
  • Heavy-Duty reinforced pressure plate
  • Sprung organic/fiber tough disc


All Clutch Masters clutch kits come complete with:

  • Pressure Plate
  • Clutch Disc
  • Throw-out Bearing
  • Pilot Bearing or Bushing
  • Alignment Tool
  • Pressure Plate Bolts


This clutch kit does not include a flywheel. Requires use of single mass flywheel 

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DKM - Corporate Logo
T#:24610565
Part#: MR-006-054
Special Order: No Guaranteed ETA
$ 1,699.99 USD
Free Shipping on orders $49 and up
Rated for upwards of 650 ft/lbs, this multi-plate (Twin Disc) Clutch is sure to have the clamping force your E46 M3 needs. Equipped with dual 184mm ceramic discs, DKM (Der Kupplungmeister) has mastered the art of packing loads of clamping force into a small space. Kit Includes: 184mm Ceramic Clutch Discs - 2 Flywheel - 1 Pressure Plate - 1 All Hardware Throwout Bearing - 1 Clutch Alignment Tool - 1
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DKM - Corporate Logo
T#:24610569
Part#: MRX-006-005
Special Order: No Guaranteed ETA
$ 1,799.99 USD
Free Shipping on orders $49 and up
Rated for upwards of 850 ft/lbs, this multi-plate (Twin Disc) Clutch is sure to have the clamping force your E46 M3 needs. Equipped with dual 215mm ceramic discs, DKM (Der Kupplungmeister) has mastered the art of packing loads of clamping force into a small space. Kit Includes: 215mm Ceramic Clutch Discs - 2 Flywheel - 1 Pressure Plate - 1 All Hardware Throwout Bearing - 1 Clutch Alignment Tool - 1
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OS Giken - Corporate Logo
T#:34382134
Part#: LSD-TUNE
Ships in 2 Business Days
$ 150.00 USD
Free Shipping
$ 150.00 USD
Free Shipping

Clutch Masters Stage 1 Clutch Kit - FX100
For Vehicles with S5D250G-TAJS Transmission (5-Speed with 10-Spline Input Shaft)
Clutch Masters - Corporate Logo
T#:567240
Part#: 03005-HD00-R
Ships in 7 Business Days
$ 522.99 USD
Free Shipping
$ 522.99 USD
Free Shipping

Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Ridged Disc version. 

  • FX100 (Stage I)

  • High performance street system

  • Holding capacity 70% over stock

  • Heavy-Duty reinforced pressure plate

  • Hi-Leverage™ pressure ring design

  • Ridged hub

  • Steel-backed organic friction material

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Clutch Masters Stage 2 Clutch Kit - FX200
For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
For Vehicles with S5D250G-TAJS Transmission (5-Speed with 10-Spline Input Shaft)
Clutch Masters - Corporate Logo
T#:567245
Part#: 03005-HDKV-R
Ships in 7 Business Days
$ 731.99 USD
Free Shipping
$ 731.99 USD
Free Shipping

Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Ridged Disc version. 

  • FX200 (Stage 2)

  • High performance street system

  • Holding capacity 70% over stock

  • Heavy-Duty reinforced pressure plate

  • Hi-Leverage™ pressure ring design

  • Ridged hub/ disc

  • Steel-backed kevlar friction material

*Does not include flywheel.

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Clutch Masters Stage 2 Clutch Kit - FX200
For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
For Vehicles with S5D250G-TAJS Transmission (5-Speed with 10-Spline Input Shaft)
Clutch Masters - Corporate Logo
T#:567243
Part#: 03005-HDKV-D
Ships in 7 Business Days
$ 731.99 USD
Free Shipping
$ 731.99 USD
Free Shipping

Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Dampened Disc version. 

  • FX200 (Stage 2)

  • High performance street system

  • Holding capacity 70% over stock

  • Heavy-Duty reinforced pressure plate

  • Hi-Leverage™ pressure ring design

  • Sprung hub/cushioned disc

  • Steel-backed kevlar friction material

*Does not include flywheel.

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