If it's kept relatively stock they can still last, though when you're already in there for the work it makes sense to do it...

Problem is, even if it was done at the dealer chances are the heads were not machined flat anyways...

 

Well when my dad bought the truck he also bought an extended warranty, which means ima have to wait till it's up to actually do anything to it that will help the truck out. Which sucks, cause it would have studs and an EGR delete on it at the moment.

 

I would still do an EGR delete if it was me, most dealers would be happy to see that on there. That or you can do a bulletproof cooler...

 

The Mickey Mouse dealership I bought my 03 from in 06 didn't even notice the cat was gone. Idiots! Anyway, no muffler, no cat, no problem.