Comes with t4 1.0 housing and. 1.15 exhaust housing. Also if you have a 7.3 I can throw in a drivers side intercooler pipe if you need one. Most of this turbos life was spent on the truck while it was my wife's daily driver, no nitrous, no water meth etc.... There is nothing wrong with it at all, just stepping down to something a more responsive since this is her daily driver. My lowered compression engine spools this at 2100-2200 rpms. It makes boost much sooner than that but 21-2200 is what it takes to just snap the boost gauge at will. Retails for 3k new and extra housing was $300.... Asking 2300 for all of it. Will add a pic of compressor wheel when I get it off the truck.