Titanium Hardware Door Kit - Honda Civic Si (2016-2021)Location Diagram Our door kit includes titanium 54 bolts and 18 titanium washers for the sedan or hatchback models. The kit replaces the hardware circled in the diagram above. The Civic Si door kit comes with clear instructions that walk you through where to place each hardware piece, ensuring a fast and effortless setup. Locations include: Door Latches Door Striker Plates Door Checks Rear Door Hinges Door Jamb Switches Front Fender Jamb Bolts