HGK Racing - Supra MK5/A90 Rear Ledge [HGK Supra-Jet bodykit]Supra MK5 A90 Rear Ledge [HGK Supra Jet bodykit] Rear ledge made in The Vacuum Infusion Process (VIP) is a technique that uses vacuum pressure to drive resin into a laminate. Dry materials are laid into the mold and the vacuum is applied before resin is introduced. Once a complete vacuum is achieved, resin is literally sucked into the laminate via carefully placed tubing. Carbon Kevlar parts can hold up several contacts and hits, without need of