The batwing ones are. Anotehr tip, the poly bushings for the batwing go in from both sides, the stock ones (that do have an outer sleeve) go in from one side that side of the bore is chamfered the other not. It's a major PITA to get the bushing in on the non chamfered side so just file a good chamfer on it and lube the bushing. i wouldn't recommend poly for this application either. Just like camber rods, these things not only rotate but also twist due to the pendulum motion. All the poly bushings I have used on C3 camber rods turned to crap rather quickly, the bushing simply breaks into pieces.