Don't waste your money on this if you need an O2 turbo housing gasket or manifold gasket for a T25 on a 2g DSM. The gasket between the turbo and O2 doesn't even match the wastegate flap and partially blocks flow from the port. The gasket between manifold and turbocharger is far from OEM thickness. I installed both, screwed everything together as specified, and the flow in these two places was worse than in the old ones. Garbage.