I think stock endlinks in the rear are robust enough, even for RB bar. I have had RB rear bar for about 8 months with many autoX events. It's still rock solid with no noise whatsoever.
Just make sure the bushings are properly sized compared to stock one (meaning that bushings stick out a bit from the bracket). Compared to other RB owners, I got a bushings that fit better supposedly. If not, shim the bushing, and tighten everything to high end of the spec. You should be good to go.
Just make sure the bushings are properly sized compared to stock one (meaning that bushings stick out a bit from the bracket). Compared to other RB owners, I got a bushings that fit better supposedly. If not, shim the bushing, and tighten everything to high end of the spec. You should be good to go.