Have any of you with the Magnaflow catback had problems with the tips sliding or vibrating out of position? The drivers side exhaust tip slids inward to the point it is almost underneath the rear fairing/skirt/bumper (what ever you call it) I loosen the nut pull it out even with the passanger side (so it sticks out about 1 to 1 1/2 inches tighten it up and 50 miles later it has slid back in. I know I could have it tacked in place, but I would prefer not to have to grind it off to take it appart in the future.