When I took the tire in to NTB, National Tire and Battery they said it was not repairable because the damage was to close to the edge of the tread at the area of compound curvature and that a patch will not hold there. They did not sell the OEM tire so I headed home with it. I was going to start calling around to find a replacement when I remebered I had a plug kit at home that I use on my 4X4 tires when I'm out on the trail and get a hole in the tire. I plugged the Prius tire and it's holding just fine. That saved me about $80.

Prius 06 Black Pack#2