OS Giken Super Lock Limited Slip Differential | 1982-1991 Porsche 944 (PR061-HA) YMM_1994_2001_BMW_7_Series_III_E38 ensuring a direct bolt-on upgrade

ensuring a direct bolt-on upgrade without modifications

these springs are a perfect blend of performance and durability

Whether for track days or street performance

these shocks provide reliable performance and durability

OS Giken Super Lock Limited Slip Differential | 1982-1991 Porsche 944 (PR061-HA) YMM_1994_2001_BMW_7_Series_III_E38 ensuring a direct bolt-on upgradeSuper Lock Limited Slip Differential by OS Giken The OS Super Lock LSD is the culmination of over four years of extensive research and development leading to a revolutionary LSD design. With the capacity to house an unprecedented number of friction plates (up to 28 plates in total) and combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner. This effort translates to