The front and rear bars need to be balanced correctly- as I'm sure you all know. For me, on a street driven vehicle, I'd do the PIU front and rear sways and shocks. You better believe that Ford has made some significant investment in engineering to address that market segment. The PIU vehicles are tested pretty extensively and the results made public, so you can bet it's a pretty well balanced vehicle. Otherwise, I'd stick with the Steeda parts. Just my opinion.