This is a complete Roush phase 1 tvs supercharger kit with some extras .It’s includes the modified timing cover to accommodate for the pulley assembly. Everything is clean, and ready to be installed. Made 750hp on the F150 it was removed from. Will fit mustangs with minor modifications. Guaranteed 100% perfect condition assembly with EXTREMELY low miles. 0 wear on the blower, or any of the braided lines, intercooler/pump or pulleys!