a v6 engine is an even firing engine so therefore don't get an X. Either get an H pipe or run straight pipes from the headers to the mufflers (with no crossover). Without cats its typically louder and you fail emissions depending on your state. I don't know what Texas tests since I don't live there yet. At WOP it will never sound like a GT because its missing 2 cylinders
. But yeah X = more rasp, H= more muscle car sound. Do a couple searches in youtube and you will probably find what you want