hey, i have a question. many sources are telling me that i cant get a straight pipe for my 95 240sx? is that true? they say that the 95 and up need the cat for some air sensor monitoring the air flow blah blah blah. i see that you dont have a cat on ur 95 200sx, so i was wondering if u ever heard of that, or if that is not a problem faced by the 200sx? also, what could i do to replace the cat? will a high flow cat work with the whole sensor?