I am hoping to remove my oem exhaust tips to replace them with something else. I read elsewhere that you need to use a 3 mm Allen wrench in the hole in the bottom of the tip. Someone also mentioned that it needs to go in at a slight angle. I can't seem to find the hex hole that the wrench goes into. I wiggled the tip of the wrench all around and can't feel any hole for it to drop into. :confused5: Has anyone done this and have tips? (Is the hex hole centered? Do I have to angle the wrench towards the back f the car or the front?) Thanks!