HAs any one come up with the reason for the nasty tinny sound between 2,500 and 3,500 rpm's ? Seems like the only guys that dont have it after installing cats and exhaust are the ones running the Borla exhaust Im running headers , RT cats, Stillen dual exhaust .I dont want to start changing things with out some assurance that its going to get rid of that dam tinny sound...ANY HELP ?



