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OS Giken LSD BMW

Brand: OS Giken | Category: Differentials

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Fitments

BMW
More Information Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
Click For More Info 2008 - 2013 128I ALL ALL ALL ALL ALL ALL E87 Chassis; Manual Trans; w/ BMW-L2 Differential
Click For More Info 1991 - 1995 318I ALL L4 1.8 ALL M42 ALL E36 Chassis; Auto Trans; w/ BMW-S1 Differential
Click For More Info 1996 - 1998 318I ALL L4 1.9 ALL M44 ALL E46 Chassis; Manual/Auto Trans; w/ BMW-S2 Differential
Click For More Info 1991 - 1995 318IS ALL L4 1.8 ALL M42 ALL E36 Chassis; Manual/Auto Trans; w/ BMW-S1 Differential
Click For More Info 1992 - 1992 325I ALL L6 2.5 ALL M50 ALL E36 Chassis; Auto Trans; w/ BMW-M1 Differential
Click For More Info 1996 - 1998 328I ALL L6 2.8 ALL M52 ALL E36 Chassis; Auto Trans; w/ BMW-M1 Differential
Click For More Info 2007 - 2010 335I ALL ALL ALL ALL ALL ALL E90 Chassis; Auto Trans; w/ BMW-L2 Differential
Click For More Info 1991 - 1995 525I ALL L6 2.5 ALL M50 ALL E34 Chassis; Auto Trans; w/ BMW-M1 Differential
Click For More Info 1994 - 1995 530I ALL V8 3.0 ALL M60 ALL E34 Chassis; Auto Trans; w/ BMW-M1 Differential
Click For More Info 1985 - 1993 535I ALL L6 3.5 ALL M30 ALL E34 Chassis; Auto Trans; w/ BMW-M1 Differential
Click For More Info 1997 - 2001 740I ALL ALL ALL ALL M62 ALL E38 Chassis; Auto Trans; w/ BMW-L1 Differential
Click For More Info 1996 - 2001 740IL ALL ALL ALL ALL M62 ALL E38 Chassis; Auto Trans; w/ BMW-L1 Differential
Click For More Info 1995 - 1998 750IL ALL ALL ALL ALL M73 ALL E38 Chassis; Auto Trans; w/ BMW-L1 Differential
Click For More Info 1988 - 1991 M3 ALL ALL ALL ALL ALL ALL E30 Chassis; Manual Trans; w/ BMW-M1 Differential
Click For More Info 1995 - 1999 M3 ALL ALL ALL ALL ALL ALL E36 Chassis; Euro Spec; Manual/Auto Trans; w/ BMW-L1 Differential
Click For More Info 2001 - 2006 M3 ALL ALL ALL ALL ALL ALL E46 Chassis; Manual/Auto Trans; w/ BMW-L1 Differential
Click For More Info 2008 - 2013 M3 ALL ALL ALL ALL ALL ALL E92 Chassis; w/ BMW-L1 Differential
Click For More Info 1988 - 1993 M5 ALL ALL ALL ALL ALL ALL E34 Chassis; Auto Trans; 6 Bolt Carrier; w/ BMW-M1 Differential
Click For More Info 2000 - 2003 M5 ALL ALL ALL ALL ALL ALL E39 Chassis; Manual Trans; w/ BMW-L1 Differential
Click For More Info 2006 - 2010 M5 ALL ALL ALL ALL ALL ALL E60/61 Chassis; SMG Trans; w/ BMW-L1 Differential
Click For More Info 2006 - 2010 M6 ALL ALL ALL ALL ALL ALL E60/61 Chassis; SMG Trans; w/ BMW-L1 Differential
Click For More Info 1998 - 2002 Z3 M COUPE
M ROADSTER
ALL ALL ALL ALL ALL E40 Chassis; Manual Trans; w/ BMW-M3 Differential
Click For More Info 2006 - 2008 Z4 M COUPE ALL ALL ALL ALL ALL E85 Chassis; Manual Trans; w/ BMW-L1 Differential

Product Description

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance.

Superior Design

  • Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability.
  • Patented pressure ring design allows for smooth, progressive locking
  • LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability.

Superior Construction

  • All components are chemically heat treated for maximum durability
  • All components are constructed from a high-grade steel alloy
    Gears are raw-forged for maximum strength
  • Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage.
  • LSD case is machined from a single billet piece to ensure uniformity.

Superior Overall Performance

  • The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns / street driving, but can still transmit maximum power to the drive wheels under load.
  • Operation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability.
  • Due to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available.
  • Aside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road/weather conditions, allowing for a safer driving experience.

Tunability

  • Initial torque can be adjusted by using thicker / thinner cone springs
  • Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver.
  • Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities.
  • TCD spec disks can be installed for increased oil cooling and even smoother operation.

Super Lock LSD – Spec X
For vehicles that are heavily modified or are particpating in specific forms of motorsports, we offer the Spec-X LSD. The custom order Spec-X is available in 1-way, 1.5-way, and 2-way configurations and can be made with custom cam angles, lock timing, and initial torque settings.

Traction Control Differential (TCD)
The innovative TCD system uses specialized oil channels and pathways to provide maximum oil flow and minimal noise, resulting in exceptionally smooth locking.

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