I have a 98 civic hb and I bought a brake conversion. The booster and master cylinder look they will work but the proportioning valve is nothing like my stock one. It was taken off a 98 integra and doesn't have as many valve holes as my stock one. My stock one is kind of flat w/ six valve holes and the integra one looks the same but has four valve holes. What proportioning valve has everyone else used doing this conversion. Thanks