Titanium Hardware Wing Kit - APR GTC-300 STI Spec WingLocation Diagram Our APR GTC 300 kit includes 20 titanium bolts, 20 titanium washers, 16 titanium nyloc nuts. The kit replaces the hardware circled in the diagram above. The wing kit comes with clear instructions that walk you through where to place each hardware piece, ensuring a fast and effortless setup. Locations include: End Plates Risers Base Plates Benefits include: Superior Corrosion Resistance Flawless Finish Weight Reduction Improved