Old Matey is Right they are a Hitachi/Garret Hybrid. They are a Bush style "T28 sized" hybrid, with different trim and stuff. Garret Don't do a straight bolt on for the Skyline, you will get close but will need an aftermarket manifold to get clearance for the front housing, An easy upgrade is to go to the rb25 turbo's they are roller bearing style and spool nice and early, you can't run heaps of boost, but in saying that i run 17.5 lbs all day every day and it hasnt busted. Easy Upgrade nonetheless......(2 cents)
