Custom Exhaust W/o Header?

[Citizen_Insane]

Is it worth it to spend the money to get a 2.5" custom exhaust system (with a dynomax turbo muffler) on an N/A b16a Sir1 that doesnt have an aftermarket header? Will I still increase flow enough to make it worthwhile? I might be going turbo, but it depends on how much money I make this summer, so I don't want to spend the money on a header. Also....is 2.5" too big for an N/A b16? Thanks.

[edit] goddamnit, sorry, wrong forum, please move to general tech and mantanence. I was in this forum and acidently posted here. me = stupid[/edit]

 

[E_SolSi]

it will help a little
either way you will want it when you go turbo

the one thing is if you are going with anything but a SMALL turbo you will probly want to get 3" piping