I've been interested in these for awhile. Why are you selling?
Weathertech themselves sells them for $99.
2010 Nissan 370Z | WeatherTech FloorLiner - car floor mats liner, floor tray protects and lines the floor of truck and SUV carpeting from mud, snow, water and dirt | WeatherTech.com
I found them online for $83 new...not sure about how legit the site is though.
2010 - 2011 Nissan 370z Black 1st Row Floorliner
GLWS, if you're willing to go cheaper let me know!