2008 G35X sedan. I could smell the coolant, and upon arriving home, immediately began to research. I wasn't surprised when videos led me to Z1 Motorsports. Thing is, most of the parts are for the G35 Coupe, so I was pleasantly surprised to find this would fit the sedan. Purchased the part and clamps on a Friday or Saturday, and literally arrived two days later, right before I had my service appointment. Service techs always compliment my Z1 purchases, and no exception with this one. All I paid for was labor, and got a clean bill for my G35. I'm thrilled to know that my G is ready to rev for a lot longer.