I need meaner sound!

416 scamp,,, thats a good one , ide be intrested in that sound,,,
i know a guy im MD,, has a 650 C.I. hemi 16;1 compression in a challenger,,this is a street car,,i believe he has those same mufflers,,4 inch in and 4 inch out,,straight thru ?????round ???
i was at an event ,,,didnt know he was there,,, i heard him a few blocks away,,no sound like that i have ever heard,,i wondered if it was the mufflers?? or that big HEMI
buy the way ide love to piss off the neighbors,,,,,,,,lol :angry4: