Sorry mate - i sold the kit with the instuctions.
IIRC, there was a metal bracket, a few spacers aroudn 1cm long, and two thorns which stuck out on the side of the lip that you had to drill into the bumper.
The bumper doesnt have to be removed but when i test fitted mine, it went staight on... you sure you have the right one as there 2 versions...
HTH