I had an exhaust leak between the front manifold and left/outer downpipe on my FJ80 so I removed the downpipe and catalytic converter. What a pain in the ass. I managed to trash the captive nut bracket that the cat-to-y-pipe bolts thread into and the rest of the hardware is in pretty sorry shape. The nuts and manifold studs were smoking after I took them off, and that's without using any heat on them. That can't be good, so I'd like to replace them along with the catalytic converter bolts. Is there a source for the hardware to replace it with OEM stuff? I'd rather not spend $100 on nuts if I don't have to. Does it matter if I put a Felpro gasket on there or will Mr. T beat me in my sleep?