@SE-RMonkey - yep, they broke while removing them, one after the other, I was going to remove the OEM one and put a Mishimoto "racing" t-stat that opens at 60 degrees b/c I have cooling issues from time to time. I found out for the VE motor you have to use a '00-01 Sentra SE or '00-02 G20 t-stat housing/waterneck, as I have a spare from my '99 SE-L parts car, but it wouldn't fit. So I just have to find one if I can't get the bolts out. Maybe I can pull the bolts out with that thingy