The NB install is a bit more complicated than the NA one, and I don't think it has
ever been documented. So here I go:
There is three major problems with the NB. First, the threaded part on the rod of the shock is far to long to seat the bushing (same problem with the Teins), second, if you want to use them properly, you need to cut the Ground Control sleeve because the OD of the sleeve will not fit in the ID of the top hat and third, the front top hats will not fit in the OEM NB hole.
Here is what I did for the rod part (A bit of a hack job but I like gold nuts
You'll need to shim the four shocks... I used 2 gold nuts and a washer per shock.
Then the sleeves won't fit...
So here is what I did
To be left with no sleeve around the part of the shock that will enter the top hat in bump.
And here is the nice hand jewelry I was left with
Notice that I took off only enough material so that I would be left with 1 in of exposed shock in the front and 1.5 inch in the back (I ordered theses sizes of top hats)
For the hole, just do like that guy: ISC shock tower tops & Sleeves - ClubRoadster.net
And you done.
PS: Don't order longer top hats to go lower, it won't do anything else than stealing you some droop travel. The wheel will hit the inner fender (frame part over the tire) before your bump stops hits the top of the top hat.