Is there a lifespan or quality difference between going OEM and aftermarket on this type of part? Is the metal tougher on OEM parts?

If I want to replace exhaust manifold studs for example, should I go strictly OEM?

Or is it better to go aftermarket at a Autozone or Adv?

 

Just go OEM, shouldn't cost much and you will know for sure they are 100% perfect fitment.

 

A bolt is a bolt. But bolts for our cars cant be found at Home depot. Hardware store FTW. If not then courtesyparts.com