BMW Drivetrain Parts for BMW Z4 M Roadster S54 (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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GSP Rear Axle Assembly - Right - E46, Z4
GSP Rear Axle Assembly - Right - E46, Z4
GSP North America - Corporate Logo
T#:389701
Part#: NCV27516
Ships in 2 Business Days
$ 183.99 USD
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$ 183.99 USD
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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E46 BMW M3

E85 BMW Z4M 

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GSP Rear Axle Assembly - Left - E46, Z4
GSP Rear Axle Assembly - Left - E46, Z4
GSP North America - Corporate Logo
T#:389714
Part#: NCV27500
Ships in 2 Business Days
$ 178.99 USD
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$ 178.99 USD
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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E46 BMW M3

E85 BMW Z4M

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Z4 M HD Clutch and Flywheel Kit
Z4 M HD Clutch and Flywheel Kit
JB Racing - Corporate Logo
T#:878
Part#: 520-010S-S873G
Ships in 9 Business Days
$ 1,488.61 USD
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$ 1,488.61 USD
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This lightweight aluminum flywheel w/ Heavy Duty "sprung-hub" clutch package is the best-engineered solution for E46 325 and 330 models with the 6-speed transmission, Z4 2.5/3.0, and Z4 M Roadster and M Coupe. Instead of picking a clutch from another car that may or may not work at all, the engineers at JB Racing have taken all of the guess work out of this upgrade and incorporated a Sachs sport sprung-hub clutch with the correct pressure plate and combined it with their most-popular aluminum lightweight flywheel. The Sachs HD clutch disc has a sprung hub to minimize noise and vibration and organic linings to give the feel and engagement of a stock clutch. Mixing and matching of the incorrect clutch, pressure plate, and flywheel components can lead to inconsistent engagement and feel -- why make your clutch feel worse?

In addition, the Sachs HD pressure plate will clamp with greater force -- allowing approximately 350 ft-lbs of torque, which makes it an obvious upgrade from the stock clutch kit. And with the aluminum flywheel weight savings is substantial over the stock dual-mass flywheel - which allows your motor to spool up faster and transmit more HP to the ground.

Because Sachs is an OE supplier to most German cars, replacement parts are just a phone call away. This kit uses the stock throw-out bearing (included in the price).

Z4 M Sport Clutch and Flywheel Applications:
2006-2008 E85 Z4, E86 Z4 Z4 M Roadster, Z4 M Coupe
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Meyle HD- High Durability Flex Disc Guibo - E36 M3, E46 M3, E34 M5 1995-2006
Meyle HD- High Durability Flex Disc Guibo - E36 M3, E46 M3, E34 M5 19...
5X Entries Into Our F80 M3 Sweepstakes
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Meyle HD - Corporate Logo
T#:4109
Part#: 26112226527
Ships in 2 Business Days
$ 198.99

This product was last offered at the strikethrough price on
08-31-2026

$ 185.99 USD
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$ 185.99 USD
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This Meyle replacement flex disc (aka: the guibo) is a vibration dampener mounted on the back of the transmission which connects to the driveshaft. When it has worn, it produces a terrible vibration throughout the car. It's especially noticeable at low speeds and when starting from a standstill. Oil leaking from the back of the transmission will significantly reduce its life.

This can also be used as an upgrade on the E30 M3. It has much more rubber in between the bolt holes which makes it last longer. This is 5mm thicker than the stock E30 flex disc so adjustment of the 2-piece driveshaft may be required. The original flex disc bolts can be re-used.

Applications:
1995-1999 E36 M3 manual & auto transmission
2001-2006 E46 M3, M3 CSL manual and SMG transmission
1991-1995 E34 M5 3.6 and 3.8 manual transmission
1998-2002 Z3 M Roadster, M Coupe - S52 and S54 engine manual & Auto transmission
2006-current E85 Z4 M Roadster, E86 M Coupe manual transmission
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