Quite a few OEMs who have optional tips (my experience is with my '11 Silverado, my dad's '15 Silverado and my '12 Tacoma) all have a clamp similar to the clamps exhaust systems use. None of them have ever loosened at all. Now these are factory option tips that have higher quality materials than the $10 Pep Boys special, their mounting design may be problematic.If it's not welded it will vibrate/rattle off and most likely become a caltrop for some poor SOB behind you.
There is another thread of someone who found tips and it looked stock.
Use the search feature.