It guess it would be efficient to change my upper and lower control arms while I am replacing my shocks (with OEM's) and replacing the spring isolators on the stock springs.However,I'm not sure I need them.My traction is crappy but that could be mostly due to the stock wheels/tires.I use the car just as a summer fair weather street car.I've heard some guys change their control arms and they end up with stiffer and noisier suspensions which I don't want.Any suggestions?