I made a bracket which attaches to the chassis mounting points and mates up to the flat(top) part of the bumper. There is some high dollar double back tape that attaches the top of the bumper to my bracket. The alignment of the bumper and the side of the car changed a little, but has not moved any more in a year so I have not tweaked it yet.
There are a few things about my bumper that look a little odd. But the original bumper is rather hideous looking IMHO. This one only weighs a small fraction of what the original one weighed too.
I wasn't going to look at this thread based on the topic. Not something I wanted to see.[:D]
Good job on the bumper, would have flowed better if the line followed the line of the rear quarter panel (if that's what it's called.) I am one of the minority who likes the original US bumper even over the UK one with it's multi piece design.
TR7 Spider - 1978 Spifire - 1976 Spitfire - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra