Guys, I had problems with fram oil filters on my race car also, and wix, and napa brand, and K&N, and a couple of others that don't come to mind right now. My little smallblock, makes 75psi of oil pressure at idle, well north of a hundred at WOT. I don't know how high it goes, but my gauge pegs at 100psi. But after peering down into them and seeing the insides crushed, I figured that screwed on oil filters are not made to withstand that kind of pressure. IMHO if you're makin a lot of oil pressure, and expect a basically stock type canister filter to do the job, you're playin with fire. BTW, I don't run them anymore, I got myself a good rebuildable, cleanable, racing type oil filter. No more problems with collapsing oil filters. Before I leave, I'm not trying to fire anyone up, or take any sides in this little discussion, this is strictly my own observation, and my opinion, with no basis on scientific fact.