well after all my rear bushings and linkages are all replaced i was still getting that clunk, clank, or banking noise when going over bumps. Come to find out i had a passenger side rear shock that had blown. So after a 4 day part screw up with ksport i got the old one pulled and re-assembled it with the new part. In the mean time i also correctly height adjusted the car with the correct amount of tension on the springs now as well. car rides amazing now! so a tip for any ksport coilover owners, set your front and rear softness to one turn from 100% soft and you get the best ride you could from those.