This is a brand new Nissan OEM Twin Turbo Engine oil pump that has been completely disassembled and treated to the following process.
 
The Pump is stripped down, ultrasonically cleaned, air blasted, and fully inspected.
Pump is hand de-burred.
Inlet & Outlet Ports manually relieved & radiused.
All internal restrictions removed. Addressing Seven Key Areas. 
Bypass valve relieved & radiused.
Blue Printed on Assembly.
Stock fasteners replaced with hex drive 12.9 Zinc Plated Hardware.
All fasteners are Loctited & torqued to Factory spec.
Assembly lubricant applied to all critical surfaces to get oil flowing fast on startup.
All work carried out in house ensuring total quality control.
Supplied ready for installation.

 
Benefits are:
Increased oil recovery
Vastly improved pump efficiency
Reduced high Rpm cavitation within the oil pump
Stable Oil Pressure at High RPM
Superior flow characteristics (10% + increase  across the board)
Increased serviceability

A recommended upgrade for medium to high HP applications, due to its ability to move a larger oil volume than OEM, which directly effects oil temps & bearing life.
Helps stabilize oil pressure in engines built with larger bearing clearances (race engines), can also help restore acceptable oil pressure in engines with worn bearings, to prevent premature wear and damage to other engine components.  
Improved pump durability via reduced cavitation.
Cavitation is the main cause of pump wear & failure, cavation happens particularly at high rpm due to restrictions & inefficiencies within the engines oiling system .
 
NB: Also Suitable for VG30DE Engines.