myself, i have had several exhaust systems in search of that one perfect one. i went from stock to a y pipe with a magnaflow muffler. wasnt too impressed. next i invested some money in headers, and true duals. the pipes never touch, but its a pain in a$$ to run. i ran high flow cats backed right to some flowtech raptor mufflers. still wasnt too impressed, although powerwise and agressiveness, your bronco will be on the top of the rankings. i got bored with the mufflers, as i still thought it was too quiet and not quite the sound i wanted. i cut all my exhaust off and rehung the cats. i ran around with nothing but cats, not even pipe behind the cats, but that got old after a while because it gave it no tone. it sounded the same idle as it did flooring it. within the past month, i have broke down and welded up pipes again, but with no muffler. i was extremely impressed with the results. i have a very noticeable throaty rumble at idle, and when accelerating, at 2500 rpms, she throws a cracking fit and sounds like someone is lighting off black cats in my tail pipes. its loud, obnoxious, scares people, sets off car alarms, and best of all, its a head turner.
ps... if you are going to get headers, skip going cheap on paper gaskets and invest in the thirty dollars for the "lifetime" aluminum gaskets. they seal sooo much better and you'll probably never have to replace them
