The AVO rear suspension mount reinforcement bracket corrects a significant weak point on the Subaru Legacy and Outback. The standard stabilizer mount point is very flexible, and has been known to break when stronger rear stabilizer bars are fitted. Or even with standard rear stabilizer bars when the car is driven too sportily! The AVO mount fixes this problem in an elegant manner, and is compatible with any rear stabilizer bar that uses the standard rear bracket, including the AVO stabilizer bar upgrades.
I knocked off a star because this part is essesntially a spacer for the 2 bolts on each side holding the sway bar bushings in place. When I torqued down the original bolts it stripped the threaded part built into the frame. So my shop got me longer bolts and nuts that are long enough to go all the way through the sway bar reinforcement. Once properly installed it works great. Very strong now.