So I've been talking with a buddy of mine that has blown his fair share of T25 gaskets (turbo flange to manifold). I blew mine last night (also T25) when I turned the boost up and went to the mountain. Ugh... ghey. He told me about these guys:
http://www.remflex.com/index.htm
Seems like a good idea, but I'm not convinced. There's also the stainless gasket, and I also noticed Cometic makes a gasket as well.
Stainless
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Cometic
A good friend of mine that's had numerous 5-600+ whp cars always uses copper RTV and has good luck. The other side of that, is an actual copper gasket. I've seen them on eGay, but I'd probably get a sheet of copper and cut out my own.
Other option is this stuff I saw some time ago on JGS Turbo's site. It's Rutland 77 Stove and Gasket Cement. Good to 2000*. Made for stove gaskets and also metal to metal repairs up to like, 1/16 or 1/8 of an inch. Obviously, that would depend on pressure, and for it, or copper RTV to work, it would have to be thin.
Thoughts? What have you guys had good luck with? I had the mani flange leveled before putting it on, and I would hope the cast turbo flange is level, but I may check it just for shiggles.