exhausts for integra's and civics years 92-01 follow the same path under the car. so an exhaust for one will bolt upto the other. it may be too short or long so you'll have to modify accordingly.

just read up as much as you can on this board and others. i suggest you go over to honda-tech as well and do some reading cause they have a ton of info. just make sure you search before asking a question cause they will tear you up if you ask an asked and answered question.

a general rule of thumb is you can safely make 300-350whp on an internally stock b18c1 with a good tune.