Caster bushings and the 4 point LCAB, here. The caster bushings paired up with the ES bushings, work very well. So does the LCAB, but for me, it had fitment issues. A BFH was required along with the dremel. If you have anything bigger than the stock exhaust, be prepared for clearance issues and the exhaust buzzing against the bar. The bar with a few layers of exhasut tape or fiberglass mesh will quiet it down. The other ball buster was getting the front bolts tightened. The recessed hole in the bar where the bolt goes through is so frickin' tight I had to grease the socket to get it on the nut. Perhaps a thin walled socket would work better...didn't have one. There's also no clearance to get a impact on it...ie. tightening by hand is required on the pass side (B14).