i personally tink its a s14 turbo.. the serial number on it 75f
for example 91 is a standard s15
91r is the s15 ball bearing turbo
an its my mate selling it not a friend of a friend..
the turbo is perfect.. the title is up as t28 but dats wat he was told it was so theres were the confusin started..
the turbo is perfect no play in the shaft...

