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

T#:1387

Part#: BM237-HA

Ships in 3 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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GSP Rear Axle Assembly - Right - E46, Z4

T#:389701

Part#: NCV27516

Ships in 3 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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Differential And LSD Tune

T#:34382136

Part#: BM237HAKT

Ships in 3 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.

GSP Rear Axle Assembly - Left - E46, Z4

T#:389714

Part#: NCV27500

Ships in 3 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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CV Joint Boot Clamp Band Tool

T#:5122269

Part#: W83011

Ships in 2 Business Days

$ 23.31 USD

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$ 23.31 USD

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Helpful tool for proper axle boot installations.

Fly Wheel Turner

T#:1809145

Part#: W80510

Ships in 2 Business Days

$ 34.69 USD

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$ 34.69 USD

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For turning and holding flexplates and flywheels.

Ear-Type Clamp Pliers

T#:1855988

Part#: W83013

Ships in 3 Business Days

$ 20.40 USD

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$ 20.40 USD

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Used on ear-type clamps found on CV joints, hoses, and some fuel filters.

Quart & Gallon Fluid Pump

T#:5095675

Part#: W1139

Ships in 3 Business Days

$ 10.99 USD

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$ 10.99 USD

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Unique double threaded cap fits both quart and gallon size containers.

Dowel Pin

T#:348843

Part#: 23411466134

In Stock

$ 2.19 USD

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$ 2.19 USD

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Multi Use Transfer Pump

T#:1809134

Part#: W1145

Ships in 2 Business Days

$ 18.80 USD

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$ 18.80 USD

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Quickly and easily transfer any fluid.

Condor Speed Shop Engine Mount Heat Sleeve - M5X, S5X Condor Engine M...

T#:577943

Part#: E36HS

Ships in 5 Business Days

$ 18.99 USD

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$ 18.99 USD

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Condor's Engine Mount Heat Sleeves reflect up to 90 percent of radiant heat. They withstand 1,100 degrees F of radiant heat and up to 450 degrees F of direct heat. The extra protection of the heat sleeves is a perfect fit for street cars, track cars, and other high heat applications. Their mounts withstand temperatures up to 180 degrees F and do not need any heat protection during regular usage, but we recommend the extra protection of their sleeves for all vehicles with high underhood heat temperatures such as turbo and supercharged vehicles. Condor heat sleeves can be easily installed by simply slipping the sleeve around the engine mount and securing using the Velcro tabs. *LISTING IS FOR ONE HEAT SHIELD **Heat sleeve fitment is for Condor Engine Mounts only.

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LSD Tune For OS Giken Differential

T#:34382134

Part#: LSD-TUNE

Ships in 3 Business Days

$ 150.00 USD

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$ 150.00 USD

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Fluid Transfer Pump

T#:1809158

Part#: W1141

Ships in 2 Business Days

$ 10.19 USD

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$ 10.19 USD

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Fits all standard gallon bottles

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