Dual exhaust vs. single pipe?

[RedMisted]

I've got a dual catback system on my car that was originally equipped with a single exhaust pipe. Yeah, I know. Racing with a street system....

Obviously, I want to dish the converters and swap out the stock exhaust manifolds for long tube headers.

Question: Should I retain the dual exhaust or switch back to a single pipe? My engine is a 3.8L V6 putting out about 190rwhp. It has yet to be opened and prepared to the full limit of IT.

Really confused as to which way to go.