Traction problems after 4.30's!!

Well I am in need of doing some suspension work now that my car has a set of 4.30's in the rear. So I am considering getting some upper and lower control arms. Which brand of control arms should i get? GMS,BBK, Steeda.....ect... please help me guys.
 
as he said on the street a softer set of tires will make the biggest difference. nitto makes the best dr's to drive on the street however bfg dr's are superior in traction but wear much faster and are just unsafe in the rain. see how they work out for you then tackle the suspension.