Soz for late replies as been busy busy. My tailpipe tip is a Miltek race tip - they get stuck onto the tail pip so no screws.. Wasn't comfortable with drilling into it or taking it off as it looks great

Just got some hard steel resin from halfords - (not their own sitty brand) and re-sealed it so it wont move.. just gotta wait 1h for it to set fully and supposidly become hard as steal and will see if it's worked
(Hope it does. did a neat job of doing it so it doesn't look like i've just crammed putty in it. all smooth and looks good so fingers x'd)