New 8" Dual Diaphragm chrome plated power brake booster kit. This 8" power booster is hand polished before a chrome finish is applied for a top quality finish. The booster mounting brackets are a direct fit to your factory firewall. Also Included in this kit is a new 1-1/8" bore master cylinder and proportioning valve perfect for most 4 wheel disc brake applications.*Note - Will not fit 1969-72 Factory Power Brake Cars.