Headers, my experience over the decades, has a higher percentage with issues
on sealing to the head
Do NOT use stainless on stainless fasteners on high heat applications...they will
weld together over time
I keep mine till can't or will not fix them anymore...will trade them if there
are innate design flaws/weaknesses, as detest payments and now the insane prices
and too many bells and whistles to become maintenance issues
When not wrenching it myself (more and more these days), take it to my mechanic
and dislike dealerships service. My mechanic is an ASE Master and used to work
at Toyota and Honda. His shop has just about every OEM badge there is and does
few trucks, as he is more of a car mechanic
About half the cost of a dealer visit and get much better service.
Such a personal decision...for me boils down to trust in the vehicle and the
gamble that anything new, whether used or not...might have same or more design
issues