Stage 1 Titanium Hardware Engine Kit - EJ257 Engine (2008-2021)Dress Up Bolts Titanium Hardware Stage 1 engine kit for the Subaru EJ257 engine is designed for engine layouts that now have a front mount intercooler. This 27 piece kit includes bolts, nuts, and washers manufactured from extremely durable, anticorrosive, and lightweight GR5 titanium metal. The kit replaces the visible hardware circled in the diagram below. *Developed using a 2015 Subaru STI & 2008 Subaru STI The kit also comes with instructions that