does any body have any expirence with type 3 bumper

ok i have to find out how to install a type 3 rear bumper for the body shop thats doing my car. it was rear ended 3 days ago and the body shop is hooking me up with a type 3 rear kit to match the front and i wanna figure out how to install it so ill be able to get it on and off easy well as easy as i can. so if i can get some guidence for this. pics would be amazing if any body has some then ill have to figure out my muffler issue i have a 4 inch magnaflow stright through.