Stock control arms are marginal at best. Bushing deflection combined with control arm flex creates erratic handling and inconsistent rear end stability when subjected to the added loads of performance driving. BMR control arms are TIG welded and utilize a combination of one polyurethane end and one bearing end (rod end). The polyurethane end is a greaseable 90 durometer spiral fluted bushing and the bearing is QA1's XM series rod end. Our CNC machined adjusters are made from 4130 chromoly and have rolled threads. All rod end spacers are 304 stainless. You won't find better quality components. Additiionally, our control arms retain the factory designed rear offset, a necessity others overlook resulting in split, binding bushings.