After months of testing, OS Giken has announced a Super Lock Differential for the FR-S/BRZ chassis.

OS Giken’s testing has found the GT-86 chassis to perform much faster utilizing a custom spec 1-way differential tuning. Typically Torsen differentials do not evenly distribute applied power and never achieve 100% lock. The OS Giken Super Lock allows for precise lock timing for consistency in performance regardless of surface conditions. In a ProSolo setting, launches are important as competitors constantly seek better 60 foot times.

The OS Giken Super Lock differential will prove more predictable and easier to control the vehicle in comparison. This tune has proven amongst test vehicles to be the smoothest and easiest setting to drive fast consistently. OS Giken differentials are known for their seamless lock timing and having a quiet operation. This specific STX tune continues with that philosophy and brings reliability, comfort and performance in one package.

Application: 2012+ Subaru BRZ / Scion FR-S / Toyota GT86

Part Numbers: TY421-HA

MAP: $1690