Yeah I did a bit of looking into these a while back and apparently the nissan engineers felt it was necessary to fit these in order to dampen certain chassis vibrations associated with stiffer springs. This just kinda surprised me since they don't seem to do anything that potentially increases he cost of the car unless they think it absolutely necessary. This makes me pause and consider getting them. Would it fit with an aftermarket oil cooler fitted in front of the ac condenser on the drivers side? ...you know.. the normal spot..

Yes, I have an oil cooler mounted up front and it clears it by about 1/4"

Nice! I might have to look into these.

If you come across a rear one let me know, the front one is a straight bolt on, really easy, but unless you have the Nismo rear sub-frame you need to do some welding and fabrication to create mounting points for it.