STI Hardened Rear Diff Rear Support Member

RIGID DIFF MOUNTING

STI rear diff rear support member is supplied as a complete assembly with hardened bushings.  Increases the rigidity of the rear differential minimizing torque reactions and other movement of the diff housing relative to the chassis.  Bolts to rear diff and rear suspension crossmember. 

There are two versions of this differential mount:  a Group N version that meets all Group N rally regulations requiring the bushing shape to remain unchanged from stock and only the hardness increase and a non-Group N version where the bushing has been modified slightly to fill in some of the open space in the original bushing design.  Please select your required version.

Like most uprated mounts and bushings you should expect an increase in NVH making the car less comfortable to drive.

The standard version currently is currently back ordered until July 23rd.

Manufacturer Part No: ST413104S000 / ST413104S020 (Group N)

What it fits:

• Impreza MY02-07 (JDM MY01-07) (All Models)