I dont know what TTI charges to coat theirs but
the ones I seen looked pretty good.. are they
as good as QC.. I doubt it.. QC does this for
a living and TTI makes headers.. if you want
to sent them to QC I know they would be better
but at what cost from what TTI sells them for..
I've never bought a TTI header because they dont
make what I need.. and I make my own stuff