OSG Super Lock Differential - Subaru WRX STi, GD/GR Front

Designed for the Subaru WRX STI (GD/GR) EJ25, this OS Giken Super Lock Limited Slip Differential with help your car rotate in all phases of the corner and put power down more easily under acceleration. This is the front differential fitment.Specifications for Standard Tune Ramps -3/50 Lock Timing - 336 Total Plates - 18 Preload - 10S   Subaru STi Front Diff (SB041-HA01) MSRP - $1450   Custom Tune MSRP - $150 (plus the differential cost) Recommended for extensively modified vehicles. You will be sent a form to fill out with vehicle details (corner weights, power level, etc.) which will allow OS Giken to custom tune your differential to the vehicle.