Nonsense

Forgive me for the bump,
But Im am about ready to do this conversion myself on my 99 Q45t.
The thing is,
I read a different thread on the vip forums and most of them mentioned that you need to use y33 top hats for the coilovers in the front.. but rear bolt up.
Is this correct?
Others say you don need and they bolt right up..

Im planning on going with S14 suspension all around.

Heres my set up:
S14 Front Spindles
Feal 240sx Coilovers
Battle Version Ruca, Traction, Toe, and Front Tension Rods
Nismo Front lower control arms
Tein Inner/Outer Tie rods

I just want to get the most information possible and see if there is anything else I would need.
Just want to make sure if i need the Y33 top hats.
If so, where do I get them?

Thanks,