Since you now have bigger pistons in your calipers, it takes more fluid to move that piston the same distance. Since you still have your OEM 7/8 MC, your going to have to push the pedal down further to move the pistons to brake. Buy a 91 civic EX MC and you will then have a 15/16 MC which is the same size as the integra MC but it bolts up to a civic booster.