Not stock 2.5. Custom. SCPerformance had a machine shop make them. They had various sizes. That'* one of the reasons it takes so damn long to get them.

Right on will. Hey I dont think you have to get that oversized zzperformance tensioner pulley when you put that smaller pulley on your SC will. My stock belt fit on just fine. The tensioner took all the slack right out. Before you spend the dough, you might want to check into that.

Already got it. Testing it to see if it works for Series 1 as well as 2. If nothing else, it'll give me a greater wrap diameter around the smaller SC pulley.