Free Shipping on orders $99 and up! Some exclusions apply. Contiguous US only.

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

Mfg Part #
BM237-HA
Turner Part #
T#1387
Brand
Price:
Qty
1950.00
Direct Ship
Free Shipping Free Shipping
Does this fit my vehicle?
For accurate results, specify your model below.

Product Details

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

This Part Fits the Following BMWs

Make Model Submodel Engine
BMW E34 M5 S38 3.5L
BMW E39 M5 S62 5.0L
BMW E46 M3 S54 3.2L
BMW E90 M3 S65 4.0L
BMW E92 M3 S65 4.0L
BMW E93 M3 S65 4.0L
BMW Z4 M Coupe S54 3.2L
BMW Z4 M Roadster S54 3.2L
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.
  • 22 years of BMW Tuning.
  • Award winning service.
  • 10,000's of parts in stock.
  • Quality BMW Parts only.
  • Hassle-free returns.

  • Find us on Facebook