I hear thumping noise when I turn right turn at low speed around the parking lot on the driver side and it also thump as soon I get my steering wheel straight after that it thump one time or two time in straight line. Can D2 coilover make thump noise?

Other thing is in the rear when I hit little bump on the hwy my rear end bounce.

 

first thing i would check on the thump going slow is your axles, takes a minute to see if a boot is torn open. bounce on the highway is probably rear struts

 

We put brand new axles on both side and boot look good. I may have to buy bc racing coilover soon. Any other thought on thumping noise?

 

you can jack up each side of the vehicle under the edges one at a time, when the wheel is off the ground wiggle the wheel with your hands at 3 o clock and 9 o clock, then 12 o clock and 6 o clock. play in the wheel at 3 and 9 usually indicates tie rod issues, 12 and 6 indicates balljoint issues usually, and play in both can be a bad wheel bearing or any of the above

 

Tie rods, control arm is red lion bushing are new expect the ball joint.