This is a standard rebuild kit that includes upgraded 360 degree thrust bearing, new thrust collar, new oil slinger, new piston rings, new journal bearings and sleeve, new compressor cover oring, new backing plate oring, and 4 extra backing plate bolts.
If you are looking for a little more flow and the 2003 style whistle add a balanced 10 blade turbine to your rebuild kit. This turbine wheel will also flow better than stock 2004-2007 13 blade turbines.