Was thinking about picking up a set for my 96 cobra but had a couple questions. With bbk longtubes and a matching catted x or h pipe would the car be able to pass emmisions. Also would it be louder than the setup i have right now running with an off-road h-pipe with no cats with the borla side exhaust. Its very tame at idle right now and id like to keep it semi-quiet under normal conditions for the sake of my neighbors. How much louder would it be over my current set-up if i went for the matching off-road pipe with the longtubes under idle or normal acceleration? And last but not least will i need to get a new tune on my chip if i were to add headers? Thanks in advance for anyone who can give me their opinions or experiences.