Turbo XS Subaru EJ20/EJ25 4-Layer Stainless Steel Exhaust Manifold to Header Gasket - PairOur gasket is made with a Multi Layer Steel construction, similar to the OEM gasket. We feature a durable stainless fire ring design to promote sealing against the flange surface. Keeping your exhaust gases inside the manifold, right were they need to be. Specs: 1. 25 mm Thickness Layers: 4 Layers OEM Part Number: 14038AA000 Specs: 1. 25 mm Thickness Layers: 5 Layers This Part Fits: Year Make Model Submodel 2013 2016 Scion FR S Base 2013 2020 Subaru