Morimotos are great. I also have the 4300k, and love them. During your install do the squirrel finder mod. It makes the light safer for other drivers on the road.
70,333? F that! The TSB covers 8 years or 80k miles. I had mine done around 75K. The dealership tried to give me the runaround. I showed them a printout of the TSB, and they stopped with the BS.
As a bonus my oxygen sensors could not be removed, so I got new cats, manifolds, and oxygen...
5100s are not stock
Bilstein 5100s are height adjustable on the fronts. Bilstein HDs are not height adjustable.
OEM Bilstein are very similar to the HDs. So unless yours have been upgraded, yours are not adjustable