Description: 100% Brand new,never been used This Listing is for a Brand New 9" Dual Diaphragm Chrome Power Brake Booster with 1-1/8" Bore Corvette Style Master in chrome plating all for the Corvette 1968-76. Direct factory replacement booster, vacuum tested and quality approved! Professional installation in highly recommended(No instruction included) Fitment: For 1968-1982 Corvette Package Includes: .