I have powertrix ultralight coils with swift springs and all spl arms available with poly in all other areas and spl mono bushings in rear. Im just getting around to installing all my suspension items. I have my powertrix ones still brand new and saw these ones that pivot released and was wondering if I should buy a different type before installing. The car will be used on the streets as a weekend car not a daily and I would like to do some roadcoarse and maybe some autocross. Also I see spl changed there ruca and traction bars since I bought my stuff is there a difference?