Collisions refuse to work no matter what i do

I'm attempting to add bulbar collisions to Peraltas 2018 charger model i followed this guide

to the T multiple times and it didn't work. I then read here http://forum.zmodeler3.com/viewtopic.php?f=31&t=7349 and changed a few settings based on that it still doesn't work i have spent over 6 hours and have tried an ungodly amount of times but no results even the yft files register the new collisions when i open them in open IV and check in the bounds tab. I have attached the files i'm working on with no lock so you can test for yourself why they wont work but i genuinely have no idea what to do can anyone help?

police2_hi.yft

police2.yft