In regards to the oil cooler issue - There are pics of the pre-production 2010 NISMO with an oil cooler on the driver side, taking up half the front aperture of the bumper. My only thing is - the 2009 NISMO had an oil cooler on the pre-pro, and then didn't come with it, but they HID the oil cooler in the fender well behind the bumper where you can't see it. The 2010 NISMO pre-production isn't hiding the oil cooler, it's right up front in plain sight - which points me in the direction of implied inclusion in the production car, unlike hiding it where you can't see. Sorry for thread jacking. I'll go in my little hole, and say nothing more in this thread about it.
Oh and goatsucker, yeah that's a power steering cooler. I've got one. About 8x4" on the passenger side. Two hard lines with one U bend surrounded by heatsink surface area fins.
Nissan 370Z Forum