Just sold my LS1 Camaro and no longer need these. I bought them 5-6 years ago and they were stored inside. No rust or issues. Just used one of the PF46 last fall. The Frams are the same as the Ultra XG3506, but they are the jobber version with a different glossy paint job instead of the grippy matte paint job. Same internals as the old style Ultra with the desirable mesh backing. The AC Delco is the older style that has the metal cage instead of the plastic e-core tube. These fit most GM V8 LS engines as well as the GM 2.4 Twin Cam, GM 3.6, etc. I'd double-check here first: https://www.fram.com/fram-ultra-synthetic-oil-filter-spin-on-xg3506
$50 shipped in the US
Here is a video (not mine) showing more info about these as well:
$50 shipped in the US
Here is a video (not mine) showing more info about these as well:
