This Brake Booster Delete V2 is perfect for Honda and Acura car enthusiasts who want to upgrade their braking systems. Whether you're a DIY mechanic looking for an easy - to - install project or a racing enthusiast seeking better performance, this kit is for you. It features an improved design that allows self - installation. The kit includes all the hardware you need. The Wilwood Master cylinder has a 5/16 - 24 push rod thread. Keep in mind it won't fit EF Civic/CRX chassis because of firewall clearance.