Cometic lower intake manifold gasket for Nissan RB25DET is made from AFM, a chemically blown nitrile synthetic rubber bonded to an aluminum core. AFM offers strong torque retention, about 85% recovery and temperature resistance above 205°F. The material does not require sealants or re-torquing, making it suitable for intake sealing on RB25DET engines.
Cometic Nissan RB25DET .032in AFM Lower Intake Manifold Gasket