This is what he said about the install process:
Originally Posted by G-Rocc
I ordered these LED's from Poison Spyder and the install was ridiculous. Contacted them and the dude basically told me to push hard to install them. After doing everything I could think of short of opening up the hole and pushing as hard as I can I contacted the Rokmen guys and he told me to dremmel down the lip of the light and then they went in without a problem. Another reason why I will always go with Rokmen.
As always, make sure that the Evap canister isn't behind where you are cutting. If it is, just be careful and you should be able to avoid making contact with it.
I can't remember where the Evap is located on the '97's. I don't think it was until '01 or something that they moved it back to in front of the tail light so you should be fine. Wouldn't hurt to ask someone to be safe though...