This product is a pair of OEM Cylinder Heads for a 2003-2006 Nissan 350Z or Infiniti G35 with the VQ35DE engine. Made of aluminum, these are backed by a 1-month manufacturer warranty. The heads are unfinished and not considered a performance part, making them a reliable and compatible replacement for your vehicle.
It seems like it has been sitting for a while and had alot of surface rust and had to switch out some parts. But got it put in and so far is working great.