Manifold Gasket RB SeriesPermaseal Turbo Manifold Gasket Set for Rb20det Rb25det Vehicles Manifold gasket set for your Nissan Skyline , Cefiro , Laurel Rb20de Rb25de Rb20det Rb25det. Replaces your factory gasket that is worn or broken around your Manifold and head. Sits between exhaust manifold and your engines head Fits onto any Rb20de det Rb25de det engine Includes: x1 exhaust manifold gasket set. Scarles has a massive range of gaskets for all applications, just enquiry