They are not height adjustable and they should fit your GTT is what i have been told. (im sure if they dont fit somebody will jump up and down about me saying they do.)
they sit the car at an awesome height, a couple of members have these coil overs and some photos of them on there cars.
ill do some searching on here and post up the link.
they have a dampener adjustment in the top
engine is an F1 omroi crate engine sorry i put s1 above my mistake. F1 is same spec as a NUR engine comes with stock turbos but can handle a lot more. more photos coming
this GTR has full N1 option pack, and a very clean fresh 33 GTR engine. with stock exhaust, rims, speedo, suspension, radiator, castors, fuel pump, $16,000
i will ship at your cost - its 90mm so close enough to 4inch
crawled under car and cant see a label must be on top. but the welds on the lobster backing are awesome it is top shelf for sure ! checkout the photos
had these as spares on my 33 GTR, just sold the car now these are left
omori RB 26 s1 engine wire and loom next to no klms (photos to come) $8000
nismo suspension $1400