As capnmchl said i would have thought it would make a difference due to the car body being more rigid, less flex meaning more responsive handling, you could go the route of changing the steering geometry, changing the cambers would give the better feel to steering, but then you run the risk of chewing through your tyres every few months cos theyre being scrubbed on the edges, suppose maybe the best thing would be to ask someone who has them or a tuning shop as to what benefits you would get out of it, i wanted to get one just to make my engine bay look better!