Well my problem is with my Exhaust Tips on my Magnaflow Exhaust System. It is a re-occurring problem. The "Allen" screw gets lose and the frigging tip rattles like no ones business. This will be the third attempt to having this problem resolved. I work at a Ford dealership and last time I had a Ford Tech put it on a lift and tighten the screw up and throw some lock-tight on it....well as it happend that screw has since cracked. Now before I buy new tips and kill these...I was hoping anyone had any ideas or suggestions????