im not sure if this has already been a topic but maybe someone can help me out. i have an 86 iroc and im trying to figure out what exhaust i want to put on. i LOVE the slp loud mouth cat back kits but they dont offer them in third gen years only fourth gens. there are alot of parts that can be interchanged from 4th to 3rd gen. the exhausts look close or identical to me. if anyone knows the answer to my question PLEASE HELP