Titanium Engine Bay Kit - Toyota Supra MKIV (1993-2002)Location Diagram Our engine bay kit includes 23 titanium bolts, 13 titanium washers, and 7 titanium nuts. The kit replaces the hardware circled in the diagram above. The MKIV Supra engine bay kit comes with clear instructions that walk you through where to place each hardware piece, ensuring a fast and effortless install. Locations include: Headlights Bumper Brackets Fenders Radiator Stay Battery Tie Down Strut Towers Fuse Box Horn Bracket Ignitor ECU