Only mentioned bypass spec because "proper" bypass spec mentioned in OP. I wouldn't be concerned about even if I lived in a colder clime.I'm not that concerned about bypass spec. We live in FL so temps rarely get low enough for that to be a significant factor, it is just an added bonus. My dealer charged $7.13 if I remember correctly. That is a fair price IMO.
$7.13 better than ~$8.50 list. That said, no problem here finding an aftermarket better than ~65%@20um with a silicone adbv for the same or less money. Bosch Premium 3323 for ~$5 my current OF of choice for Honda.
That's 'tell them to pound sand', pricing.My dealer wanted $14.99