what gasket do you guys use on the standard manifold ?
I recently changed my standard T2 to a T25 but I have a leak from between turbo and manifold. I removed the turbo and both faces are straight. I've used a copper gasket I had cut on water-jet when I serviced my old T2. It used to seal very good, but now I have a leak coming from the upper side of the flange. I've noticed it had taken shape to the surface of the old T2, so maybe I need to cut a new one. Haven't managed to buy one, the only ones I'm finding are the standard rectangular flange type.