He measured and used cardboard first to do test fitting. I haven't done mine yet as I have other things to do first but I'm not really looking forward to cutting into the hood anyway. hahah, let me know how it goes!
I use lb because I prefer my units in the Bald Eagle scale. ?
10k/16k is most likely with non-coil over spring rear like oem which basically doubles the spring rate.
Installed "air suspension" today!
Just kidding, I am taking off my coilovers for service and don't want my suspension arms holding all the weight for a month or so.
For track use?
Depends on what you like. With no aero, 550f/500r with true coilover rear worked great for me this last season.
Upping 100lb's now that I have aero.