I'm not going to argue with you. When installing the front chssis bar, you will have to remove the front toll hooks, and cut the plastic cover so the bar will fit through it. Also, unless your are a super tiny person, it is not possible to fit your self under the car to install the under bar. Simply put, just ask Prime members Autowave, or MrTed. They are certified Honda techs, and both of them will tell you it is physically impossible to install the Front Chassis bar correctly without having to remove the front bumper.
Personal experience. When I had my chassis bars intalled, I was fiddling with it for hours with couple of local NSXers who already had their's installed. I was warned by them it is impossible to do it wihout having to remove the front bumper. If you have a way, love to have you post instructions, and post some pictures. I will make a public apology to SOS if that is the case.