dude you you could hear that thing pop just idleing,but that dont mean nothin, it sound good! theres all kinds of things that can make exaust sound different, just think if on your green truck how a straight pipe would sound, it would sound good but it will also have another 4-5 feet of pipe to flow through, maybe the shortness of the broncos wheelbase has to do with how it pops, cause every straight piped f150 ive heard pops, and they pop with glasspacks to, just stand outside it and have someone speed off in it , or rev it up, youll see what i mean, but you prob dont hear it like i do cause i have no catalic converters but with all that said , your bronco still sounds sick, and i want to hear a vid of your truck!