im not knocking anyone in any way but idk why someone would put a b16a in an integra unless it is boosted or rebuilt n/a. there is a reason why they went with 1.8l because of the weight the integra is heavier. the b16a is torqueless wonder. i have a stock ls motor in my teg with boltons and kept up bumper to bumper with a swapped b16a civic from 40-85mph. anyways back to the exhaust just some advice on what i would do is get a testpipe in place of the converter and do 2.25 custom pipe from that to a resonator then to a good muffler. make sure you get a resonator because it will be loud as fuck and draw attention. ive learned the hard way.