3 Inch or 2.5 Inch TTI tailpipes ??

Hey, other than looks, is there any advantage to running 3 inch pipes over the axles for a mild 383 (less than 500 hp)? Gonna replace the old POS tailpipes on my Dart (currently 318 ) and thinking about going up to 3 inch, since its only a few bucks more when I order the pipes from TTI.

Opinions, anyone..??
go with 2and a half inch. 3 is overkill . and as mentioned by another member clearance problems will be more evident with the larger diameter pipes. :D